JPS53135513A - Signal decision circuit of automatic channel selection device - Google Patents

Signal decision circuit of automatic channel selection device

Info

Publication number
JPS53135513A
JPS53135513A JP5152877A JP5152877A JPS53135513A JP S53135513 A JPS53135513 A JP S53135513A JP 5152877 A JP5152877 A JP 5152877A JP 5152877 A JP5152877 A JP 5152877A JP S53135513 A JPS53135513 A JP S53135513A
Authority
JP
Japan
Prior art keywords
channel selection
selection device
decision circuit
automatic channel
signal decision
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
JP5152877A
Other languages
Japanese (ja)
Other versions
JPS5816789B2 (en
Inventor
Nobuo Minoura
Yasukazu Yoshinaga
Isao Matsumura
Takao Abumi
Kazuhiro Nakai
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP52051528A priority Critical patent/JPS5816789B2/en
Priority to US05/900,246 priority patent/US4205347A/en
Priority to BR7802626A priority patent/BR7802626A/en
Priority to FR7812798A priority patent/FR2389288A1/en
Priority to DE2818957A priority patent/DE2818957C3/en
Priority to AU35544/78A priority patent/AU503258B1/en
Publication of JPS53135513A publication Critical patent/JPS53135513A/en
Publication of JPS5816789B2 publication Critical patent/JPS5816789B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

PURPOSE: To ensure an assured automatic decision for the normal TV signal by comparing the standard clock pulse signal with the counted output after counting the TV synchronous signal through a divider and then deciding the existence of the synchronous signal of a fixed number within a fixed time.
COPYRIGHT: (C)1978,JPO&Japio
JP52051528A 1977-04-30 1977-04-30 Signal discrimination circuit for automatic channel selection equipment Expired JPS5816789B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP52051528A JPS5816789B2 (en) 1977-04-30 1977-04-30 Signal discrimination circuit for automatic channel selection equipment
US05/900,246 US4205347A (en) 1977-04-30 1978-04-26 Television signal determination in an automatic tuning system
BR7802626A BR7802626A (en) 1977-04-30 1978-04-26 SIGNAL DISCRIMINATOR CIRCUIT FOR AUTOMATIC CHANNEL SELECTOR DEVICE
FR7812798A FR2389288A1 (en) 1977-04-30 1978-04-28 CIRCUIT FOR IDENTIFYING TELEVISION SIGNALS IN AN AUTOMATIC TUNING SYSTEM
DE2818957A DE2818957C3 (en) 1977-04-30 1978-04-28 Test circuit for television station detection in an automatically tunable television receiver
AU35544/78A AU503258B1 (en) 1977-04-30 1978-04-28 Recognition oft. v. signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52051528A JPS5816789B2 (en) 1977-04-30 1977-04-30 Signal discrimination circuit for automatic channel selection equipment

Publications (2)

Publication Number Publication Date
JPS53135513A true JPS53135513A (en) 1978-11-27
JPS5816789B2 JPS5816789B2 (en) 1983-04-02

Family

ID=12889507

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52051528A Expired JPS5816789B2 (en) 1977-04-30 1977-04-30 Signal discrimination circuit for automatic channel selection equipment

Country Status (2)

Country Link
JP (1) JPS5816789B2 (en)
BR (1) BR7802626A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57194683A (en) * 1981-05-08 1982-11-30 Rca Corp Detector
JPS60148288A (en) * 1984-01-12 1985-08-05 Nec Ic Microcomput Syst Ltd Device for identifying broadcasting signals
JPH01200788A (en) * 1988-02-04 1989-08-11 Nippon Hoso Kyokai <Nhk> Television receiver
JPH04183184A (en) * 1990-11-19 1992-06-30 Sanyo Electric Co Ltd Image display controller

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5020528U (en) * 1973-06-20 1975-03-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5020528U (en) * 1973-06-20 1975-03-08

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57194683A (en) * 1981-05-08 1982-11-30 Rca Corp Detector
JPH0153827B2 (en) * 1981-05-08 1989-11-15 Rca Licensing Corp
JPS60148288A (en) * 1984-01-12 1985-08-05 Nec Ic Microcomput Syst Ltd Device for identifying broadcasting signals
JPH0418753B2 (en) * 1984-01-12 1992-03-27 Nippon Denki Aishii Maikon Shisutemu Kk
JPH01200788A (en) * 1988-02-04 1989-08-11 Nippon Hoso Kyokai <Nhk> Television receiver
JPH04183184A (en) * 1990-11-19 1992-06-30 Sanyo Electric Co Ltd Image display controller

Also Published As

Publication number Publication date
JPS5816789B2 (en) 1983-04-02
BR7802626A (en) 1979-04-10

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