JP2002111919A - Image reading apparatus, information processing apparatus, and control method thereof - Google Patents

Abstract

(57) Abstract: An image reading apparatus having a function of obtaining power from an information processing apparatus via a connection cable solves a problem caused by insufficient power. An image reading apparatus has a function of connecting to an information processing apparatus via a connection cable having a communication line and a power line. This image reading device 10
0 indicates that the information processing device 2 is in the period in which image reading is not executed.
The secondary battery 217 is charged using the power supplied from the power supply 50, and power is obtained from the secondary battery 217 and the information processing device 250 during a period in which image reading is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reading apparatus and an information processing apparatus, a control method thereof, a memory medium for controlling the same, and an image reading system.

[0002]

2. Description of the Related Art There is an image reading apparatus used by being connected to an information processing apparatus such as a personal computer via a communication cable. In this type of image reading apparatus, generally, AC
Power is obtained from an external power supply using an adapter or the like, or power is obtained from an information processing apparatus via a communication cable (for example, a USB cable).

[0003]

When the above-described image reading apparatus is operated by receiving power from the information processing apparatus via a communication cable, the power which can be obtained from the information processing apparatus is limited. For this purpose, it is necessary to reduce the amount of light of the lamp and to reduce the reading speed. Therefore, when the reading operation is performed while obtaining power from the information processing apparatus, the performance (for example, reading speed) of the image reading apparatus cannot be sufficiently exhibited.

The present invention has been made in view of the above background, and for example, solves a problem caused by a shortage of power in an image reading apparatus having a function of obtaining power from an information processing apparatus via a connection cable. The purpose is to:

[0005]

An image reading apparatus according to a first aspect of the present invention is an image reading apparatus having a function of connecting to an information processing apparatus via a connection cable, and relates to image reading. Processing means for performing processing, and a period during which the predetermined processing is not performed by the processing means, the secondary battery is charged using power supplied from the information processing device via the connection cable, and the predetermined processing is performed. During the period of execution, power supply control means for obtaining power from the secondary battery and the information processing device and supplying power to the processing means is provided.

In the image reading apparatus according to the first aspect of the present invention, the predetermined processing includes, for example, an image reading processing.

In the image reading apparatus according to the first aspect of the present invention, the processing means includes, for example, an image sensor including an illumination system for illuminating the original and an image sensor for imaging the original illuminated by the illumination system. And a driving unit for relatively moving the document and the image sensor.

An image reading apparatus according to a first aspect of the present invention includes, for example, a detecting means for detecting a state of charge of the secondary battery, and a main control for controlling the processing means based on a detection result by the detecting means. Preferably, the method further comprises means.

In the image reading apparatus according to the first aspect of the present invention, the main control means notifies the information processing apparatus of a detection result by the detecting means, for example, and responds to the notification. It is preferable to control the processing means based on a command sent from the company.

[0010] In the image reading apparatus according to the first aspect of the present invention, the main control means changes an operation mode based on a command sent from the information processing apparatus in response to a detection result by the detection means. It is preferable that the processing means be operated in the determined and the determined operation mode.

[0011] In the image reading apparatus according to the first aspect of the present invention, the processing means includes, for example, as an operation mode,
The main control unit includes a high-speed reading mode and a low-speed reading mode. For example, when the charging of the secondary battery is sufficient, the main control unit operates the processing unit in the high-speed reading mode to charge the secondary battery. It is preferable to operate the processing means in the low-speed reading mode when the reading is insufficient.

[0012] In the image reading apparatus according to the first aspect of the present invention, the processing means includes, for example, as an operation mode,
A high power consumption mode and a low power consumption mode, wherein the main control means operates the processing means in the high power consumption mode when the charging of the secondary battery is sufficient, When charging is insufficient, it is preferable to operate the processing means in the low power consumption mode.

An information processing apparatus according to a second aspect of the present invention controls a secondary battery and an image reading apparatus having a charging function via a connection cable, and supplies power to the image reading apparatus via the connection cable. Receiving means for receiving charging information relating to the state of charge of the secondary battery from the image reading apparatus, and controlling the image reading apparatus based on the charging information received by the receiving means. Control means.

[0014] The information processing apparatus according to the second aspect of the present invention preferably further comprises, for example, means for displaying a message based on the received information received by the receiving means.

In the information processing apparatus according to a second aspect of the present invention, the control means determines an operation mode of the image reading apparatus based on, for example, charging information received by the reception means, and determines the determined operation mode. Preferably, the image reading device is operated in a mode.

In an information processing apparatus according to a second aspect of the present invention, the image reading apparatus includes, for example, a high-speed reading mode and a low-speed reading mode as operation modes, and the control means includes, for example, the secondary mode. Operating the image reading device in the high-speed reading mode when the battery is sufficiently charged, and operating the image reading device in the low-speed reading mode when the charging of the secondary battery is insufficient. Is preferred.

In the information processing apparatus according to the second aspect of the present invention, the image reading device includes, for example, a high power consumption mode and a low power consumption mode as operation modes, and the control means includes Operate the image reading device in the high power consumption mode when the battery is sufficiently charged, and operate the image reading device in the low power consumption mode when the rechargeable battery is insufficiently charged. Preferably.

Preferably, the information processing apparatus according to the second aspect of the present invention further comprises, for example, means for displaying information indicating an operation mode of the image reading apparatus determined by the control means.

In the information processing apparatus according to the second aspect of the present invention, it is preferable that the control means controls the image reading apparatus in accordance with, for example, an instruction from a user input in response to the display of the message. .

A method for controlling an image reading apparatus according to a third aspect of the present invention is a method for controlling an image reading apparatus having a function of connecting to an information processing apparatus via a connection cable, and is related to image reading. A processing step of performing processing, and a period in which the predetermined processing is not performed in the processing step, charging a secondary battery using power supplied from the information processing device via the connection cable, and performing the predetermined processing. The execution period includes a power control step of obtaining power from the secondary battery and the information processing device and supplying power to a processing unit that is used to execute the processing step.

A method for controlling an information processing apparatus according to a fourth aspect of the present invention controls a secondary battery and an image reading apparatus having its charging function via a connection cable having a communication line and a power line, and reads the image. A method for controlling an information processing device that supplies power to a device, comprising: a receiving step of receiving charging information on a charging state of the secondary battery from the image reading device; and And a control step of controlling the image reading device.

A memory medium according to a fifth aspect of the present invention comprises:
A memory medium storing a program for controlling an image reading apparatus having a function of connecting to an information processing apparatus via a connection cable, the program comprising: a processing step of executing processing related to image reading; During the period in which the predetermined process is not executed in the process, the secondary battery is charged using the power supplied from the information processing device via the connection cable, and the period in which the predetermined process is executed is the secondary battery. And a power control step of obtaining power from the information processing apparatus and supplying power to a processing unit for performing the processing step.

A memory medium according to a sixth aspect of the present invention comprises:
A memory medium storing a program for controlling a secondary battery via a connection cable and an image reading apparatus having a charging function thereof and for controlling an information processing apparatus for supplying power to the image reading apparatus via the connection cable. The program may include a receiving step of receiving charging information on a charging state of the secondary battery from the image reading apparatus, and a controlling step of controlling the image reading apparatus based on the charging information received in the receiving step. It is characterized by including.

An image reading system according to a seventh aspect of the present invention is an image reading system in which an image reading device and an information processing device are connected via a connection cable, wherein the image reading device is used for reading an image. A processing unit for performing a related process; and a period in which the predetermined process is not performed by the processing unit. The secondary battery is charged by using power supplied from the information processing device via the connection cable. During a period in which the process is executed, the power supply control unit includes a power supply control unit that obtains power from the secondary battery and the information processing device and supplies power to the processing unit; In addition, at least one of the image reading device and the information processing device includes a control unit that controls the processing unit based on a detection result of the detection unit.

[0025]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[First Embodiment] FIG. 1 is a sectional view showing the structure of an image reading apparatus according to a preferred embodiment of the present invention. The image reading apparatus 100 is a sheet feed type that reads an image while conveying a document. Contact type image sensor (CIS) 1 for reading originals
Is a photodiode 2, a selfoc lens 3, LE
D array 4 and contact glass 5 are included. The transport rollers 6 for transporting the original are arranged before and after the CIS 1, and transport the original so as to pass through the lower surface of the contact glass 5. The contact sheet 7 makes the original contact the lower surface of the contact glass 5.

When a document is inserted into the document insertion slot, the document detection lever 8 is tilted.
Output changes. The CPU 215 (see FIG. 2) can detect insertion of a document based on a change in the output of the document detection sensor 9. When the insertion of the document is detected, C
The PU 215 causes the CIS 1 to read the original while driving the original transport roller 6 by the drive motor 221 (see FIG. 2).

FIG. 2 is a block diagram showing a circuit configuration of the image reading apparatus 100 shown in FIG. The CIS 1 includes an LED drive circuit 4 for driving (controlling) the LED array 4 in addition to the photodiode 2 and the LED array 4 described above.
a. When reading an original, the LED drive circuit 4
In accordance with a command from the CPU 215, the LED a is turned on in order to illuminate the document by sequentially turning on the LEDs of three colors of R, G and B in reading each line. This illuminating light is reflected by the document and enters the photodiode 2, and is converted into an electric signal by the photodiode 2. By such processing, RGB
And a line-sequential color read image is obtained.

The AMP (amplifier circuit) 204 amplifies the signal output from the CIS 1 and supplies the amplified signal to the A / D converter circuit 205. The A / D conversion circuit 205 converts the signal supplied from the AMP 204 into digital data and supplies the digital data to the shading correction circuit 207.

The shading RAM 206 stores shading correction data obtained by reading a calibration sheet in the same manner as a document. The shading correction circuit 207 includes a shading RAM 2
Based on the data stored in 06, shading correction is performed on the read image data of the document. The peak detection circuit 208 is a circuit that detects a peak value in the read image data line by line, and is used to detect the leading edge of the document.

The gamma conversion circuit 209 performs gamma conversion on the read image data according to a gamma curve set by the information processing device 250 such as a personal computer.

The buffer RAM 210 stores information processing device 2
RAM for temporarily storing image data to be transmitted to 50
(Transmission buffer), packing / buffer RAM
The control circuit 211 performs a packing process on the read image data in accordance with an image output mode (for example, binary, 4-bit multi-level, 8-bit multi-level, 24-bit multi-level) set by the information processing apparatus 400 or the like. To buffer RAM2
10 and a process of reading the read image data written in the buffer RAM 210 and supplying the read image data to the interface circuit 212.

The interface circuit 212 has a communication function of exchanging control information and image data with the information processing device 250 via the connection cable 300 and a function of receiving power from the information processing device 250. As a method of the interface, for example, USB or the like is preferable, and the connection cable 300 supplies power using a communication line.

The power supply control circuit 218 uses the power supplied from the information processing device 250 via the connection cable 300 and the power charged in the secondary battery 217 under the control of the CPU 215, and Supply power to each part. For example, when the image reading device 100 is not performing an image reading operation, the power supply control circuit 218 supplies power supplied from the information processing device 250 via the connection cable 300 to each unit in the image reading device 100. At the same time, the secondary battery 217 is charged. When performing the image reading operation, the power supply control circuit 218 uses both the power supplied from the information processing device 250 via the connection cable 300 and the power charged in the secondary battery 217 to read the image. Power is supplied to each unit in the device 100.

The CPU 215 has a ROM 215A storing a control program and a working RAM 215B.
Each unit is controlled according to a control program stored in the ROM 215A. This control program can be provided and incorporated in the image reading apparatus 100 in a state stored in a memory medium, for example.

The timing signal generation circuit 214 divides the frequency of the periodic signal output from the crystal oscillator 216 in accordance with an instruction from the CPU 215 to generate various timing signals. The CPU 215 controls the timing signal generation circuit 214 according to the operation mode.

As described above, in this embodiment, when the image reading apparatus 100 operates using the electric power supplied from the information processing apparatus 250 via the connection cable 300, an operation with large power consumption is executed. (For example, an image reading operation), the operation is performed using the power charged in the secondary battery 217 and the power supplied from the information processing device 250 via the connection cable 300, and the power consumption is reduced. When a small operation is performed (for example, a standby operation, an operation for setting reading conditions, and the like), the information processing device 250
The secondary battery 217 is charged by using the power supplied from the device via the connection cable 300. Therefore, according to this embodiment, when the image reading device 100 operates using the power supplied from the information processing device 250 via the connection cable 300, the operation capability is reduced due to insufficient power (for example, It is possible to effectively suppress a decrease in the capability of the image reading operation.

[Second Embodiment] In the first embodiment, by providing a secondary battery in the image reading apparatus, it is possible to prevent the performance of the image reading operation from lowering due to insufficient power. Further, in the second embodiment, when an image is read in a state where the charge of the secondary battery is insufficient, if the image is read in the normal image reading mode, the image reading operation stops, It is considered that the reading device or the information processing device may go down. This embodiment solves such a problem. Note that items which are not particularly mentioned in this embodiment conform to the first embodiment.

FIG. 3 is a block diagram showing a circuit configuration of the image reading apparatus 100 shown in FIG. 1 according to the second embodiment of the present invention. This embodiment differs from the first embodiment (see FIG. 2) in having a sensor 219 for detecting the state of charge (for example, output voltage) of the secondary battery 217.

The power supply control circuit 218 uses the power supplied from the information processing device 250 via the connection cable 300 and the power charged in the secondary battery 217 according to the control of the CPU 215, and Supply power to each part. More specifically, the power control circuit 21
For example, when the image reading apparatus 100 is not performing an image reading operation, the power supplied from the information processing apparatus 250 via the connection cable 300 is used as the power of the image reading apparatus 10.
In addition, the secondary battery 217 is charged while being supplied to each part within the range 0. When performing the image reading operation, the power supply control circuit 218 uses both the power supplied from the information processing device 250 via the connection cable 300 and the power charged in the secondary battery 217 to read the image. Power is supplied to each part in the device.

In this embodiment, the state of charge of the secondary battery 217 can be confirmed by the sensor 219. Confirmation of the state of charge of the secondary battery 217 by the sensor 219
For example, it can be performed in a state where the charging operation of the secondary battery 217 by the power supply control circuit 218 is stopped. The CPU 215
From the sensor 219, information indicating the state of charge of the secondary battery 217 (charge information) is obtained,
12, the information processing device 250 can be notified. The information processing device 250 can control whether to cause the image reading device 100 to execute the image reading operation based on the charging information. This control displays, for example, a message based on the charging information on the display unit 252,
This may be performed based on an instruction given from the user via an input unit (for example, a keyboard, a mouse, or the like) 251 or may be performed automatically by the information processing device 250. Here, when the information processing device 250 automatically controls the image reading operation of the image reading device 100 based on the charging information,
It is preferable to display on the display unit 252 that such control is performed and / or charging information and the like.

Further, instead of such control, according to control by CPU 215 of image reading apparatus 100 based on charging information, or information processing apparatus 250 based on charging information.
, An appropriate image reading mode may be selected from a plurality of image reading modes. For example, when the rechargeable battery 217 is not sufficiently charged, the LED array 4
A low power consumption mode (slow reading mode) in which the drive current (light amount) of the drive roller 221 is reduced and the rotation speed (conveyance speed of the document) of the drive motor 221 for driving the conveyance roller 6 is selected, and the secondary battery 217 is charged. If is sufficient,
A high-speed reading mode (high power consumption mode) in which the drive current (light amount) of the LED array 4 is increased and the rotation speed (conveyance speed of the document) of the drive motor 221 for driving the conveyance roller 6 is increased.

According to this embodiment, the image reading device 1
00, a sensor 219 for detecting the state of charge of the secondary battery 217 provided, and controlling the image reading apparatus 100 using the charging information detected by the sensor 219 (for example, an image reading operation or an image reading mode). Control), control suitable for the state of charge of the secondary battery 217 can be performed. For example, the image reading operation is stopped due to insufficient charging of the secondary battery 217, and the image reading device 100 and the information processing device 250 Down can be prevented.

Hereinafter, a method of controlling the image reading device 100 by the information processing device 250 will be described. The information processing device 250 is configured by, for example, a general personal computer, and includes an input unit (for example, a keyboard and a mouse) 251 and a display unit (for example, a liquid crystal display, a CR, etc.).
T display etc.) 252, CPU, RAM, RO
M, hard disk, etc.

FIG. 4 shows an information processing apparatus 2 in the first example.
5 is a flowchart showing the flow of control of the image reading apparatus 100 by the control unit 50. Note that a program for implementing the processing shown in this flowchart can be provided and incorporated in the information processing device 250 in a state stored in a memory medium, for example.

In step S401, the information processing device 25
0, the charge information of the secondary battery 217 is received from the image reading apparatus 100 via the connection cable 300, and the step S4 is executed.
In 02, a message (a message indicating the charging state) based on the charging information is displayed on the display unit 252.

In step S403, the information processing device 40
No. 3 determines whether or not a reading command has been input from the user via the input unit 252. If the reading command has been input, the process proceeds to step S404. If the reading command has not been input, the process returns to step S401. .

In step S404, the image reading device 100 is sent to the image reading apparatus 100 in accordance with the reading command given by the user.
An image reading command is issued via the connection cable 300.

According to this control example, the user determines whether or not to cause the image reading device 100 to read an image in accordance with the state of charge of the secondary battery 217 provided in the image reading device 100. Can be.

FIG. 5 shows an information processing apparatus 2 in the second example.
5 is a flowchart showing the flow of control of the image reading apparatus 100 by the control unit 50. Note that a program for implementing the processing shown in this flowchart can be provided and incorporated in the information processing device 250 in a state stored in a memory medium, for example.

In step S501, the information processing device 25
0 waits for a reading command from the user via the input device 251, and when the command is input, the process proceeds to step S 502, and the image reading device 100 is connected to the image reading device 100 via the connection cable 300. The charging state of the next battery 217 is inquired (a request is made to transmit charging information, and the charging information is received).

In step S 503, a message regarding the state of charge is displayed on display unit 252 based on the received charge information. This step may be omitted.

In step S504, it is determined whether or not the secondary battery 217 provided in the image reading apparatus 100 is sufficiently charged based on the received charging information. An image reading command is issued to the reading device 100 via the connection cable 300. On the other hand, if the rechargeable battery 217 is not sufficiently charged,
Proceeding to step S506, a message is displayed on the display unit 252 to wait for execution of an image reading operation (issuance of an image reading command) until charging is sufficient, and the process returns to step S502.

According to this control example, the image reading apparatus 100
In order to forcibly wait for the execution of the image reading command when the charging of the secondary battery 217 provided in
It is possible to prevent failure of image reading due to power shortage and down of the image reading apparatus 100 or the information processing apparatus 250.

FIG. 6 shows an information processing apparatus 2 in the third example.
5 is a flowchart showing the flow of control of the image reading apparatus 100 by the control unit 50. Note that a program for implementing the processing shown in this flowchart can be provided and incorporated in the information processing device 250 in a state stored in a memory medium, for example. In this example, it is assumed that the image reading apparatus 100 has a high-speed reading mode (high power consumption mode) and a low power consumption mode (low speed reading mode).

In step S601, the information processing device 25
0 waits for a user to input a reading command via the input device 251, and if the command is input, the process proceeds to step S 602, and the image reading device 100 is connected to the image reading device 100 via the connection cable 300. The charging state of the next battery 217 is inquired (a request is made to transmit charging information, and the charging information is received).

In step S603, a message regarding the state of charge is displayed on display section 252 based on the received charge information. This step may be omitted.

In step S604, the image reading device 10
It is determined whether or not the secondary battery 217 provided for the battery 0 is sufficiently charged. If it is sufficient to execute the high-speed reading mode, the process proceeds to step S605, and if it is not enough to execute the high-speed reading mode. If it is, the process proceeds to step S607.

In step S605, a message indicating that image reading is to be executed in image reading apparatus 100 in high-speed reading mode is displayed on display unit 252. This step may be omitted. In step S606, the information processing device 250 issues an image reading command to the image reading device 100 via the connection cable 300. The image reading command may include a command indicating that the image reading mode should be set to the high-speed reading mode, or may not include such a command. In the image reading apparatus 100, the CPU 215 transmits the charging information provided from the sensor 219 to the charging information. Accordingly, the image reading mode may be set to the high-speed reading mode.

In step S607, a message to the effect that image reading is to be executed in image reading apparatus 100 in the low power consumption mode is displayed on display unit 252. This step may be omitted. In step S608, the information processing device 250 issues an image reading command to the image reading device 100 via the connection cable 300.
The image reading command may include a command to set the image reading mode to the low power consumption mode, or may not include such a command. In the image reading apparatus 100, the CPU 215 determines whether the charging information provided from the sensor 219 is provided. , The image reading mode may be set to the low power consumption mode.

According to this control example, the image reading apparatus 100
The image reading mode is automatically determined in accordance with the state of charge of the secondary battery 217 provided in the image reading apparatus. Therefore, for example, the user can read an image without considering the state of the secondary battery 217. 100.

[Third Embodiment] In this embodiment,
A modification of the first and second embodiments is provided. In addition,
Matters that are not particularly mentioned in this embodiment conform to the first or second embodiment (for example, FIGS. 2 to 6 and matters related thereto). In the first and second embodiments,
The present invention provides an example in which a sheet feed type image reading apparatus is provided. This embodiment provides an example in which the present invention is applied to a flood bed type image reading apparatus.

FIG. 7 is a diagram showing a schematic configuration of a flat bed type image reading apparatus. This image reading device,
CIS 1, shaft 42, motor 43, glass table (original table) 4
4. It has a pressure plate 46. In this image reading apparatus, the original 4
The original is read while the CIS 1 is moved in the direction of the arrow by the motor 43 in a state where the document 5 is placed on the glass table 44. Note that the configuration shown in FIG. 2 (first embodiment) or FIG. 3 (second embodiment) can be employed as the configuration of the control circuit. As for the operation control, the method described in the first or second embodiment can be adopted.

[Others] In the above embodiment,
Although the image reading apparatus 100 receives all power supply via the connection cable, the same effect can be obtained by, for example, the configuration shown in FIG. That is, the information processing device 2
In this case, the power supply connector 220 is provided on the image reading apparatus 100 and an external power supply (such as an AC adapter) 230 is connected to the power supply connector 220. In this case, the power supplied from the external power supply 230 is supplied to each unit in the image reading apparatus 100 and the secondary battery 217 is charged.

In each of the above embodiments, the elements described as a part of the image reading apparatus 100 may be provided in the information processing apparatus 250, or conversely, the information processing apparatus 250
Elements described as a part of the image reading apparatus 100 may be provided in the image reading apparatus 100.

Further, the present invention may be applied to a system composed of a plurality of devices or an apparatus composed of one device.

Further, an object of the present invention is to supply a storage medium (or a recording medium) in which a program code of software for realizing the functions of the above-described embodiments is recorded to a system or an apparatus, and a computer (a computer) of the system or the apparatus. It is needless to say that the present invention can also be achieved by a CPU or an MPU) reading and executing the program code stored in the storage medium. In this case, the program code itself read from the storage medium implements the functions of the above-described embodiment, and the storage medium storing the program code constitutes the present invention. Also,
When the computer executes the readout program code, not only the functions of the above-described embodiments are realized, but also the operating system (OS) running on the computer based on the instructions of the program code.
It goes without saying that a case where the functions of the above-described embodiments are implemented by performing some or all of the actual processing, and the processing performs the functions of the above-described embodiments.

Further, after the program code read from the storage medium is written into the memory provided in the function expansion card inserted into the computer or the function expansion unit connected to the computer, the program code is read based on the instruction of the program code. Needless to say, the CPU included in the function expansion card or the function expansion unit performs part or all of the actual processing, and the processing realizes the functions of the above-described embodiments.

[0069]

According to the present invention, for example, it is possible to solve a problem caused by insufficient power in an image reading apparatus having a function of obtaining power from an information processing apparatus via a connection cable.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a configuration of an image reading apparatus according to a preferred embodiment of the present invention.

FIG. 2 is a block diagram showing a circuit configuration of the image reading apparatus shown in FIG. 1 according to the first embodiment.

FIG. 3 is a block diagram illustrating a circuit configuration of a second embodiment of the image reading apparatus illustrated in FIG. 1;

FIG. 4 is a flowchart illustrating a flow of control of the image reading device by the information processing device according to the first example of the second embodiment of the present invention;

FIG. 5 is a flowchart illustrating a flow of control of an image reading apparatus by an information processing apparatus according to a second example of the second embodiment of the present invention.

FIG. 6 is a flowchart illustrating a flow of control of an image reading device by an information processing device according to a third example of the second embodiment of the present invention.

FIG. 7 is a diagram showing a schematic configuration of a flat bed type image reading apparatus to which the present invention can be applied.

FIG. 8 is a cross-sectional view illustrating a configuration of an image reading apparatus according to another preferred embodiment of the present invention.

 ──────────────────────────────────────────────────続 き Continued on front page F term (reference) RA20 UA02 UA18

Claims (20)

[Claims] 1. An image reading apparatus having a function of connecting to an information processing apparatus via a connection cable, comprising: processing means for executing processing relating to image reading; and a period during which predetermined processing is not executed by the processing means. Is
A secondary battery is charged using power supplied from the information processing device via the connection cable, and during the period in which the predetermined process is performed, power is obtained from the secondary battery and the information processing device. An image reading apparatus comprising: a power control unit that supplies power to the processing unit. 2. The image reading apparatus according to claim 1, wherein the predetermined process includes an image reading process. 3. An image sensor including an illumination system for illuminating a document, and an image sensor for imaging a document illuminated by the illumination system, and a drive for relatively moving the document and the image sensor. The image reading apparatus according to claim 1, further comprising: means. 4. The apparatus according to claim 1, further comprising: detecting means for detecting a state of charge of the secondary battery; and main control means for controlling the processing means based on a detection result by the detecting means. The image reading device according to claim 3. 5. The main control unit notifies the information processing device of a detection result of the detection unit, and controls the processing unit based on a command sent from the information processing device in response to the notification. The image reading device according to claim 4, wherein 6. The main control means determines an operation mode based on a command sent from the information processing device in accordance with a result of detection by the detection means, and causes the processing means to operate in the determined operation mode. The image reading device according to claim 5, wherein: 7. The processing unit includes a high-speed reading mode and a low-speed reading mode as operation modes, and the main control unit performs the high-speed reading mode when the rechargeable battery is sufficiently charged. The image reading apparatus according to claim 4, wherein the processing unit is operated, and when the charging of the secondary battery is insufficient, the processing unit is operated in the low-speed reading mode. 8. The processing means includes a high power consumption mode and a low power consumption mode as operation modes, and the main control means controls the high power consumption when the secondary battery is sufficiently charged. The image reading apparatus according to claim 4, wherein the processing unit is operated in a mode, and when the charging of the secondary battery is insufficient, the processing unit is operated in the low power consumption mode. 9. An information processing apparatus that controls a secondary battery and an image reading apparatus having a charging function thereof via a connection cable and supplies power to the image reading apparatus via the connection cable. Receiving means for receiving charging information relating to the state of charge of the secondary battery from a reading apparatus; and controlling means for controlling the image reading apparatus based on the charging information received by the receiving means. Processing equipment. 10. The information processing apparatus according to claim 9, further comprising: means for displaying a message based on received information received by said receiving means. 11. The image processing apparatus according to claim 11, wherein the control unit determines an operation mode of the image reading apparatus based on the charging information received by the reception unit, and operates the image reading apparatus in the determined operation mode. The information processing apparatus according to claim 9. 12. The image reading apparatus includes a high-speed reading mode and a low-speed reading mode as operation modes, and the control unit performs the high-speed reading mode in the high-speed reading mode when the rechargeable battery is sufficiently charged. The information processing apparatus according to claim 11, wherein the image reading apparatus is operated, and when the secondary battery is not sufficiently charged, the image reading apparatus is operated in the low-speed reading mode. 13. The image reading device includes a high power consumption mode and a low power consumption mode as operation modes, and the control unit controls the high power consumption when the rechargeable battery is sufficiently charged. 12. The information processing apparatus according to claim 11, wherein the image reading apparatus is operated in a mode, and when the charging of the secondary battery is insufficient, the image reading apparatus is operated in the low power consumption mode. apparatus. 14. The image reading apparatus according to claim 11, further comprising: means for displaying information indicating an operation mode of said image reading apparatus determined by said control means.
The information processing apparatus according to any one of claims 1 to 7. 15. The information processing apparatus according to claim 10, wherein the control unit controls the image reading apparatus in accordance with an instruction from a user input in response to the display of the message. 16. A method for controlling an image reading apparatus having a function of connecting to an information processing apparatus via a connection cable, wherein: a processing step of executing processing related to image reading; During the non-execution period, the secondary battery is charged using electric power supplied from the information processing device via the connection cable, and during the period in which the predetermined process is executed, the secondary battery and the information processing device are charged. A power supply control step of obtaining power from the power supply and supplying power to a processing unit used for performing the processing step. 17. A method of controlling an information processing apparatus for controlling a secondary battery and an image reading apparatus having a charging function thereof via a connection cable and supplying power to the image reading apparatus via the connection cable. A receiving step of receiving charging information on a charging state of the secondary battery from the image reading apparatus; and a controlling step of controlling the image reading apparatus based on the charging information received in the receiving step. Control method for an information processing apparatus. 18. A memory medium storing a program for controlling an image reading apparatus having a function of connecting to an information processing apparatus via a connection cable, wherein the program executes processing related to image reading. And a period in which the predetermined process is not executed in the processing step, a secondary battery is charged using power supplied from the information processing device via the connection cable, and a period in which the predetermined process is executed is A power supply control step of obtaining power from the secondary battery and the information processing device and supplying power to a processing unit for performing the processing step. 19. A program for controlling a secondary battery and an image reading apparatus having a charging function thereof via a connection cable, and for controlling an information processing apparatus for supplying power to the image reading apparatus via the connection cable. A receiving medium for receiving charging information relating to a state of charge of the secondary battery from the image reading apparatus; and controlling the image reading apparatus based on the charging information received in the receiving step. A memory medium, comprising: a control step of: 20. An image reading system in which an image reading device and an information processing device are connected via a connection cable, wherein the image reading device executes a process related to image reading, and the process During the period when the predetermined processing is not executed by the means,
A secondary battery is charged using power supplied from the information processing device via the connection cable, and during the period in which the predetermined process is performed, power is obtained from the secondary battery and the information processing device. A power control unit that supplies power to the processing unit; and a detection unit that detects a state of charge of the secondary battery, wherein at least one of the image reading device and the information processing device detects the state by the detection unit. An image reading system comprising a control unit for controlling the processing unit based on a result.