JPS5671324A - Transversal filter - Google Patents
Transversal filterInfo
- Publication number
- JPS5671324A JPS5671324A JP14746979A JP14746979A JPS5671324A JP S5671324 A JPS5671324 A JP S5671324A JP 14746979 A JP14746979 A JP 14746979A JP 14746979 A JP14746979 A JP 14746979A JP S5671324 A JPS5671324 A JP S5671324A
- Authority
- JP
- Japan
- Prior art keywords
- input
- time
- operated
- switch
- tau
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H15/00—Transversal filters
Landscapes
- Filters That Use Time-Delay Elements (AREA)
Abstract
PURPOSE:To give an input signal, to select the charging time in T-tau time with the order according to transversal constitution, and to synthesize it and output, by giving a signal every other T time per electrostatic capacity to the input side in tau (<T) time by the switch. CONSTITUTION:Input signals are input from an input terminal 11, and switches S11-S1n are connected to the input side, then the input signals charge up electrostatic capacity rows C11-C1n for tau time (<T). Next, after the time T, switches S12-S2n are operated and capacit rows C21-C2n are connected to charge up the input signals. The capacity each row is charged in the interval of T by the input signal, switch Sj(n-j+2) is operated after T/2, switch Sj(n-j+3) is operated after T+T/2 and switch Sj(n-j+4) is operated after 2T+T/2 respectively for the connection to output side, and the input signal charged up by T-T/2=T/2, is output. Thus, a transversal filter not using operational amplifiers is made for capacitor switching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14746979A JPS5671324A (en) | 1979-11-14 | 1979-11-14 | Transversal filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14746979A JPS5671324A (en) | 1979-11-14 | 1979-11-14 | Transversal filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5671324A true JPS5671324A (en) | 1981-06-13 |
| JPS6252968B2 JPS6252968B2 (en) | 1987-11-09 |
Family
ID=15431080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14746979A Granted JPS5671324A (en) | 1979-11-14 | 1979-11-14 | Transversal filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5671324A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59161117A (en) * | 1983-03-04 | 1984-09-11 | Nec Corp | Switched capacitor type cable equalizer |
| WO2007116974A1 (en) * | 2006-04-07 | 2007-10-18 | Panasonic Corporation | Filter device |
| WO2007142341A1 (en) * | 2006-06-08 | 2007-12-13 | Panasonic Corporation | Discrete filter, sampling mixer, and radio device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6964890B1 (en) | 1992-03-17 | 2005-11-15 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for forming the same |
-
1979
- 1979-11-14 JP JP14746979A patent/JPS5671324A/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59161117A (en) * | 1983-03-04 | 1984-09-11 | Nec Corp | Switched capacitor type cable equalizer |
| WO2007116974A1 (en) * | 2006-04-07 | 2007-10-18 | Panasonic Corporation | Filter device |
| JP2009147401A (en) * | 2006-04-07 | 2009-07-02 | Panasonic Corp | Filter device |
| US7664811B2 (en) | 2006-04-07 | 2010-02-16 | Panasonic Corporation | Apparatus using sampling capacitors |
| WO2007142341A1 (en) * | 2006-06-08 | 2007-12-13 | Panasonic Corporation | Discrete filter, sampling mixer, and radio device |
| US8032094B2 (en) | 2006-06-08 | 2011-10-04 | Panasonic Corporation | Discrete filter, sampling mixer, and radio device |
| JP5258559B2 (en) * | 2006-06-08 | 2013-08-07 | パナソニック株式会社 | Discrete filter, sampling mixer and radio apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6252968B2 (en) | 1987-11-09 |
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