JPS54103602A - Channel selecting device - Google Patents

Channel selecting device

Info

Publication number
JPS54103602A
JPS54103602A JP926778A JP926778A JPS54103602A JP S54103602 A JPS54103602 A JP S54103602A JP 926778 A JP926778 A JP 926778A JP 926778 A JP926778 A JP 926778A JP S54103602 A JPS54103602 A JP S54103602A
Authority
JP
Japan
Prior art keywords
channel
channel number
signal
control signal
digital
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
JP926778A
Other languages
Japanese (ja)
Inventor
Akira Honda
Junichi Nakagawa
Kiichi Yamashita
Yoshimune Hagiwara
Mitsunari Sato
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP926778A priority Critical patent/JPS54103602A/en
Publication of JPS54103602A publication Critical patent/JPS54103602A/en
Pending legal-status Critical Current

Links

Landscapes

  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

PURPOSE: To select channels and indicate channel numbers simultaneously by storing in a memory the channel selection control signal and channel number selection identifying signal.
CONSTITUTION: Digital control signals of receivable channels are written in submemory 2 in the operating area. For selecting channels, a digital control signal corresponding to the address in submemory 2 is read by pushing operating keyboard 1 and the television signal of specified channel is received as an image by D/A converter 3. On the other hand, the selected digital control signal is also applied to logic operation circuit 10, detects a digital signal that coincides with a digital signal in main memory 9 and applies the corresponding channel number indication control signal to channel number indicating device 11. Since the channel number is determined according to the corresponding frequency, the channel number is indicated while the channel is selected.
COPYRIGHT: (C)1979,JPO&Japio
JP926778A 1978-02-01 1978-02-01 Channel selecting device Pending JPS54103602A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP926778A JPS54103602A (en) 1978-02-01 1978-02-01 Channel selecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP926778A JPS54103602A (en) 1978-02-01 1978-02-01 Channel selecting device

Publications (1)

Publication Number Publication Date
JPS54103602A true JPS54103602A (en) 1979-08-15

Family

ID=11715660

Family Applications (1)

Application Number Title Priority Date Filing Date
JP926778A Pending JPS54103602A (en) 1978-02-01 1978-02-01 Channel selecting device

Country Status (1)

Country Link
JP (1) JPS54103602A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03117221A (en) * 1989-09-29 1991-05-20 Sanyo Electric Co Ltd Receiver of voltage synthesizer system
JPH03160826A (en) * 1989-11-17 1991-07-10 Sanyo Electric Co Ltd Receiver for voltage synthesizer system
JPH05110467A (en) * 1991-10-16 1993-04-30 Matsushita Electric Ind Co Ltd Channel selection device for double converter receiver

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03117221A (en) * 1989-09-29 1991-05-20 Sanyo Electric Co Ltd Receiver of voltage synthesizer system
JP2542930B2 (en) * 1989-09-29 1996-10-09 三洋電機株式会社 Voltage synthesizer type receiver
JPH03160826A (en) * 1989-11-17 1991-07-10 Sanyo Electric Co Ltd Receiver for voltage synthesizer system
JPH05110467A (en) * 1991-10-16 1993-04-30 Matsushita Electric Ind Co Ltd Channel selection device for double converter receiver

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