JPS57169999A - Sample hold circuit - Google Patents

Sample hold circuit

Info

Publication number
JPS57169999A
JPS57169999A JP56053606A JP5360681A JPS57169999A JP S57169999 A JPS57169999 A JP S57169999A JP 56053606 A JP56053606 A JP 56053606A JP 5360681 A JP5360681 A JP 5360681A JP S57169999 A JPS57169999 A JP S57169999A
Authority
JP
Japan
Prior art keywords
sample hold
circuit
sampling
value
sample
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
JP56053606A
Other languages
Japanese (ja)
Other versions
JPS6244360B2 (en
Inventor
Toru Akiyama
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.)
Pioneer Video Corp
Universal Pioneer Corp
Original Assignee
Pioneer Video Corp
Universal Pioneer 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 Pioneer Video Corp, Universal Pioneer Corp filed Critical Pioneer Video Corp
Priority to JP56053606A priority Critical patent/JPS57169999A/en
Publication of JPS57169999A publication Critical patent/JPS57169999A/en
Publication of JPS6244360B2 publication Critical patent/JPS6244360B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C27/00—Electric analogue stores, e.g. for storing instantaneous values
    • G11C27/02—Sample-and-hold arrangements
    • G11C27/024—Sample-and-hold arrangements using a capacitive memory element
    • G11C27/026—Sample-and-hold arrangements using a capacitive memory element associated with an amplifier

Abstract

PURPOSE:To achieve a sample hold circuit suitable for a servo control circuit controlling a prescribed state, by inhibiting the sampling of a value outside a prescribed range and outputting the sampled value with holding. CONSTITUTION:A time axis correcting phase error signal of a color video signal is sample-held at a sample hold circuit 1 consisting of a switch S1 in response to a sampling pulse B, a capacitor C1 and a buffer amplifier A1 and the like, and also sample-held at similar sample hold circuits 2 and 3 with a pulse B via delay circuits 8 and 7. If the sampling value of the circuit 1 is outside a prescribed value, the output of a window comparator 5 is inverted to a low level via the circuit 2 and a differential detector 4. Thus, an AND gate 6 is closed, the delayed pulse B is interrupted, the circuit 3 does not make sampling but outputs the sampled value in holding, allowing to obtain the sample hold circuit suitable for a servo control circuit controlling a prescribed state.
JP56053606A 1981-04-09 1981-04-09 Sample hold circuit Granted JPS57169999A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56053606A JPS57169999A (en) 1981-04-09 1981-04-09 Sample hold circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56053606A JPS57169999A (en) 1981-04-09 1981-04-09 Sample hold circuit

Publications (2)

Publication Number Publication Date
JPS57169999A true JPS57169999A (en) 1982-10-19
JPS6244360B2 JPS6244360B2 (en) 1987-09-19

Family

ID=12947542

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56053606A Granted JPS57169999A (en) 1981-04-09 1981-04-09 Sample hold circuit

Country Status (1)

Country Link
JP (1) JPS57169999A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59180577U (en) * 1983-05-18 1984-12-03 パイオニア株式会社 Time axis correction device
JPS59180576U (en) * 1983-05-18 1984-12-03 パイオニア株式会社 Time axis correction device
JPS6277791A (en) * 1985-10-01 1987-04-09 Nec Home Electronics Ltd Digital color saturation controller
JPH0244887A (en) * 1988-08-04 1990-02-14 Matsushita Electric Ind Co Ltd Time base variation correction device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59180577U (en) * 1983-05-18 1984-12-03 パイオニア株式会社 Time axis correction device
JPS59180576U (en) * 1983-05-18 1984-12-03 パイオニア株式会社 Time axis correction device
JPS6277791A (en) * 1985-10-01 1987-04-09 Nec Home Electronics Ltd Digital color saturation controller
JPH0244887A (en) * 1988-08-04 1990-02-14 Matsushita Electric Ind Co Ltd Time base variation correction device

Also Published As

Publication number Publication date
JPS6244360B2 (en) 1987-09-19

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