JPS558181A - Channel program device - Google Patents

Channel program device

Info

Publication number
JPS558181A
JPS558181A JP8178678A JP8178678A JPS558181A JP S558181 A JPS558181 A JP S558181A JP 8178678 A JP8178678 A JP 8178678A JP 8178678 A JP8178678 A JP 8178678A JP S558181 A JPS558181 A JP S558181A
Authority
JP
Japan
Prior art keywords
memory
channel
broadcast signal
local oscillation
oscillation frequency
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
JP8178678A
Other languages
Japanese (ja)
Other versions
JPS6021486B2 (en
Inventor
Hisao Mogi
Yoshio Ishigaki
Hisao Okada
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP8178678A priority Critical patent/JPS6021486B2/en
Publication of JPS558181A publication Critical patent/JPS558181A/en
Publication of JPS6021486B2 publication Critical patent/JPS6021486B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

PURPOSE: To secure an automatic memorization the tuning data corresponding to the transmission signal channel and the tuning data of the fixed channel where no broadcast signal exists by installing the detecting means to detect that the local oscillation frequency fratures the prescribed value and that the broadcast signal exists.
CONSTITUTION: When search start switch SW2 is turned on, the tuning voltage codes corresponding to all receivable broadcast stations are written automatically into station memory 3. The frequency code preset via channel frequency memory 18 is compared with the bit number corresponding to the value obtained by dividing 12 the local oscillation frequency of tuner 11 at comparator counter 17, and the local oscillation frequency is changed to the normal value via decision circuit 20 and station counter 6 to produce signal P2. At the same time, the tuning voltage data is written into memory 3 via detection signal P5 and P2 detecting the presence or absence of the broadcast signal through broadcast signal detection circuit 30. In case no broadcast signal exists, it is memorized in user-use channel detection memory unit 31, and the tuning data of the channel is memorized in memory 3 via unit 31 to be then used for VTR or the like.
COPYRIGHT: (C)1980,JPO&Japio
JP8178678A 1978-07-05 1978-07-05 channel programming device Expired JPS6021486B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8178678A JPS6021486B2 (en) 1978-07-05 1978-07-05 channel programming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8178678A JPS6021486B2 (en) 1978-07-05 1978-07-05 channel programming device

Publications (2)

Publication Number Publication Date
JPS558181A true JPS558181A (en) 1980-01-21
JPS6021486B2 JPS6021486B2 (en) 1985-05-28

Family

ID=13756159

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8178678A Expired JPS6021486B2 (en) 1978-07-05 1978-07-05 channel programming device

Country Status (1)

Country Link
JP (1) JPS6021486B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325332A2 (en) * 1988-01-22 1989-07-26 Philips Electronics Uk Limited Video signal recorder/player devices
EP1026892A1 (en) * 1999-02-03 2000-08-09 Pace Micro Technology PLC Vacant broadcast channel searching system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325332A2 (en) * 1988-01-22 1989-07-26 Philips Electronics Uk Limited Video signal recorder/player devices
EP1026892A1 (en) * 1999-02-03 2000-08-09 Pace Micro Technology PLC Vacant broadcast channel searching system

Also Published As

Publication number Publication date
JPS6021486B2 (en) 1985-05-28

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