JPS6455633A - Picture input signal generator - Google Patents

Picture input signal generator

Info

Publication number
JPS6455633A
JPS6455633A JP62212584A JP21258487A JPS6455633A JP S6455633 A JPS6455633 A JP S6455633A JP 62212584 A JP62212584 A JP 62212584A JP 21258487 A JP21258487 A JP 21258487A JP S6455633 A JPS6455633 A JP S6455633A
Authority
JP
Japan
Prior art keywords
signal
whose level
continuously changed
input signal
changed
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.)
Pending
Application number
JP62212584A
Other languages
Japanese (ja)
Inventor
Masao Hasegawa
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.)
NEC Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
Nippon Electric Co Ltd
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 NEC Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP62212584A priority Critical patent/JPS6455633A/en
Publication of JPS6455633A publication Critical patent/JPS6455633A/en
Priority to US07/479,677 priority patent/US5122793A/en
Pending legal-status Critical Current

Links

Landscapes

  • Input From Keyboards Or The Like (AREA)

Abstract

PURPOSE:To surely detect a signal whose level is continuously changed, by counting a synchronizing signal generated at a prescribed timing to output the signal whose level is continuously changed or a signal whose level is changed at a single shot and recognizing an input signal as the picture input signal at the time of the change of the level of the input signal. CONSTITUTION:The synchronizing signal generated from a synchronizing signal sending means 43 provided in a picture control means 4A at a prescribed timing is outputted to a keyboard 2A. In the keyboard 2A, the synchronizing signal from the synchronizing signal sending means 43 is counted by a counting means 201 and the counting means 201 generates one signal whose level is continuously changed or two more signals which have levels continuously changed and are different in period. One signal or tow or more signals different in period from the counting means 201 or the signal whose level is changed at a single shot is selected and outputted by a selecting means 202. Thus, the continuously changed signal is surely detected.
JP62212584A 1987-08-26 1987-08-26 Picture input signal generator Pending JPS6455633A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP62212584A JPS6455633A (en) 1987-08-26 1987-08-26 Picture input signal generator
US07/479,677 US5122793A (en) 1987-08-26 1990-02-14 Signal generator for generating an image signal of an input signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62212584A JPS6455633A (en) 1987-08-26 1987-08-26 Picture input signal generator

Publications (1)

Publication Number Publication Date
JPS6455633A true JPS6455633A (en) 1989-03-02

Family

ID=16625121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62212584A Pending JPS6455633A (en) 1987-08-26 1987-08-26 Picture input signal generator

Country Status (1)

Country Link
JP (1) JPS6455633A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5682061A (en) * 1990-09-24 1997-10-28 Tessera, Inc. Component for connecting a semiconductor chip to a substrate
US6080603A (en) * 1994-07-07 2000-06-27 Tessera, Inc. Fixtures and methods for lead bonding and deformation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5682061A (en) * 1990-09-24 1997-10-28 Tessera, Inc. Component for connecting a semiconductor chip to a substrate
US6080603A (en) * 1994-07-07 2000-06-27 Tessera, Inc. Fixtures and methods for lead bonding and deformation

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