KR100217017B1 - 광센서를 이용한 휴대용 전화기의 발광 다이오드의 동작구조 - Google Patents
광센서를 이용한 휴대용 전화기의 발광 다이오드의 동작구조 Download PDFInfo
- Publication number
- KR100217017B1 KR100217017B1 KR1019960042926A KR19960042926A KR100217017B1 KR 100217017 B1 KR100217017 B1 KR 100217017B1 KR 1019960042926 A KR1019960042926 A KR 1019960042926A KR 19960042926 A KR19960042926 A KR 19960042926A KR 100217017 B1 KR100217017 B1 KR 100217017B1
- Authority
- KR
- South Korea
- Prior art keywords
- light emitting
- portable telephone
- keypad
- emitting diodes
- lcd backlight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
- H04W52/0267—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by controlling user interface components
- H04W52/027—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by controlling user interface components by controlling a display operation or backlight unit
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephone Function (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephone Set Structure (AREA)
Abstract
Description
Claims (1)
- 액정화면(13)에 장착된 다수개의 LCD 백라이트용 발광다이오드(14) 및 키이패드(15)의 키이에 장착된 키이 수만큼의 키이패드용 발광다이오드(16)와 상기 발광다이오드(14,16)를 온오프시키는 기능키를 구비한 휴대용 전화기(11)에 있어서, 휴대용 전화기(11) 외부에 장착되어 밝기에 대한 신호를 발생하는 광센서(17)와; 상기 광센서(17)의 감지신호에 따라 일정밝기 이상에서는 상기 기능키를 온모드로 하더라도 LCD 백라이트용 및 키이패드용 발광다이오드(14,16)가 온상태가 되지 않도록 하고, 일정밝기 이하에서는 상기 기능키의 온오프모드 동작에 의하여 LCD 백라이트용 및 키이패드용 발광다이오드(14,16)를 온오프상태로 할 수 있도록 제어하는 중앙처리장치를 포함하는 것을 특징으로 하는 휴대용 전화기의 액정화면 백라이트용 및 키이패드용 발광다이오드의 동작 구조.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960042926A KR100217017B1 (ko) | 1996-09-30 | 1996-09-30 | 광센서를 이용한 휴대용 전화기의 발광 다이오드의 동작구조 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960042926A KR100217017B1 (ko) | 1996-09-30 | 1996-09-30 | 광센서를 이용한 휴대용 전화기의 발광 다이오드의 동작구조 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980023438A KR19980023438A (ko) | 1998-07-06 |
| KR100217017B1 true KR100217017B1 (ko) | 1999-09-01 |
Family
ID=19475591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960042926A Expired - Fee Related KR100217017B1 (ko) | 1996-09-30 | 1996-09-30 | 광센서를 이용한 휴대용 전화기의 발광 다이오드의 동작구조 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100217017B1 (ko) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980068471A (ko) * | 1997-02-20 | 1998-10-15 | 김광호 | 소비전력 감소용 액정표시장치의 백라이트 |
| KR100350696B1 (ko) * | 1999-08-20 | 2002-08-28 | 삼성전자 주식회사 | 무선단말장치의 표시부 제어장치 및 제어방법 |
| KR100762587B1 (ko) * | 2000-12-21 | 2007-10-01 | 엘지전자 주식회사 | 이동 통신 단말기에서 표시부의 밝기를 조절하는 장치 및방법 |
-
1996
- 1996-09-30 KR KR1019960042926A patent/KR100217017B1/ko not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980023438A (ko) | 1998-07-06 |
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