JPS56104515A - Automatic equalizer - Google Patents

Automatic equalizer

Info

Publication number
JPS56104515A
JPS56104515A JP735480A JP735480A JPS56104515A JP S56104515 A JPS56104515 A JP S56104515A JP 735480 A JP735480 A JP 735480A JP 735480 A JP735480 A JP 735480A JP S56104515 A JPS56104515 A JP S56104515A
Authority
JP
Japan
Prior art keywords
delay
delay means
blocks
register
latches
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
Application number
JP735480A
Other languages
Japanese (ja)
Other versions
JPS6329443B2 (en
Inventor
Kazuo Ozeki
Shunichi Onishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Japan Broadcasting Corp
Original Assignee
Toshiba Corp
Nippon Hoso Kyokai NHK
Tokyo Shibaura Electric Co Ltd
Japan Broadcasting Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Nippon Hoso Kyokai NHK, Tokyo Shibaura Electric Co Ltd, Japan Broadcasting Corp filed Critical Toshiba Corp
Priority to JP735480A priority Critical patent/JPS56104515A/en
Priority to DE19813101826 priority patent/DE3101826C2/en
Publication of JPS56104515A publication Critical patent/JPS56104515A/en
Publication of JPS6329443B2 publication Critical patent/JPS6329443B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/18—Signals indicating condition of a camera member or suitability of light
    • G03B17/20—Signals indicating condition of a camera member or suitability of light visible in viewfinder

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Viewfinders (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE: To reduce the number of switches, by forming the delay means into some blocks.
CONSTITUTION: The shift register 11 functioning as a delay means in a transversal filter consists of e.g. 6 delay means R1∼R6 and then divided into three delay blocks B1∼B3 consisting of the two consecutive delay means R1 and R2, R3 and R4 plus R5 and R6, respectively. The input tap of the first delay block B1 of the register 11 plus the output taps of the blocks B1∼B3 are connected to 4 row lines. The two column lines cross these row lines, and the switches 121a1∼121d2 are connected to these cross points. Then the 1st latches 122a and 122c are connected to the column lines along with the 2nd latches 122b and 122d connected via the delay devices 123a and 123b serving as the auxiliary delay means. The both devices 123a and 123b have the same delay time as one means of the register 11.
COPYRIGHT: (C)1981,JPO&Japio
JP735480A 1980-01-24 1980-01-24 Automatic equalizer Granted JPS56104515A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP735480A JPS56104515A (en) 1980-01-24 1980-01-24 Automatic equalizer
DE19813101826 DE3101826C2 (en) 1980-01-24 1981-01-21 Display device for viewfinder displays in a single lens reflex camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP735480A JPS56104515A (en) 1980-01-24 1980-01-24 Automatic equalizer

Publications (2)

Publication Number Publication Date
JPS56104515A true JPS56104515A (en) 1981-08-20
JPS6329443B2 JPS6329443B2 (en) 1988-06-14

Family

ID=11663614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP735480A Granted JPS56104515A (en) 1980-01-24 1980-01-24 Automatic equalizer

Country Status (2)

Country Link
JP (1) JPS56104515A (en)
DE (1) DE3101826C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6096014A (en) * 1983-10-31 1985-05-29 Nippon Telegr & Teleph Corp <Ntt> Transversal filter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3726220A1 (en) * 1987-08-07 1989-02-16 Gossen Gmbh DEVICE FOR SELECTIVE LIGHT MEASUREMENT
JPH0276926U (en) * 1988-12-02 1990-06-13

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800655A (en) * 1971-12-20 1974-04-02 Minolta Camera Kk Photographic viewfinder arrangement
US4142782A (en) * 1975-04-03 1979-03-06 Brian Edward D O Display arrangements employing thermochromic compositions
JPS5533286Y2 (en) * 1975-12-29 1980-08-08
JPS5461643U (en) * 1977-10-08 1979-04-28

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6096014A (en) * 1983-10-31 1985-05-29 Nippon Telegr & Teleph Corp <Ntt> Transversal filter

Also Published As

Publication number Publication date
DE3101826A1 (en) 1981-11-26
DE3101826C2 (en) 1984-12-20
JPS6329443B2 (en) 1988-06-14

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