Plural receiving and recording television system

• US 4,031,548 A
• Filed: 09/25/1975
• Issued: 06/21/1977
• Est. Priority Date: 09/30/1974
• Status: Expired due to Term

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kato, Yoshiro, Fujita, Choichi
• Primary Examiner(s): Safourek, Benedict V.
• Assistant Examiner(s): Saffian, Mitchell
• Application Number:
  US05/616,667
• Time in Patent Office: 635 Days
• Field of Search: 178/7.3 R, 178/7.5 R, 178/DIG. 13, 358/4
• US Class Current: 348/725
• CPC Class Codes: H04N 5/445 for displaying additional information H04N5/50 takes precedence
• CPC Class Codes: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 5/775 between a recording apparatus and a television receiver

Abstract

A combination of a television receiver and a television signal recording and/or reproducing apparatus, such as a so-called video tape recorder, forming a television system for receiving, recording and/or reproducing television signals and displaying images thereof, wherein the television receiver portion contains two separate signal selecting and receiving circuitries each including a separately tunable tuner, an intermediate frequency stage and a detector stage, and specific television signals received by the respective circuitries are selectively applied by selecting switches in the television receiver portion to the display stage of the portion of the television receiver for display of images or to the portion of the signal recording and/or reproducing apparatus for recording.

Claims

1. A television system comprising the combination of:

A. signal recording and/or reproducing apparatus having input and output terminals; and

B. a television receiver comprising;

1. a pair of signal selecting and receiving circuitries, each including at least a separately tunable tuner, a video intermediate frequency amplifier, a video detector, and a sound detector,

2. a display stage including sound and video reproducing circuits,

3. first switching means for selectively connecting one of said pair of signal selecting and receiving circuitries to the input terminal of said recording and/or reproducing apparatus, and

4. second switching means for selectively connecting one of said pair of signal selecting and receiving circuitries and the output terminal of said recording and/or reproducing apparatus to said display stage.

2. A television system according to claim 1 comprising power supply means and first, second, and third power switches, said pair of signal selecting and receiving circuitries being connected to said power supply means by said first power switch, said display stage being connected to said power supply means by said second power switch, and said signal recording and/or reproducing apparatus being connected to said power supply means by said third power switch wherein said first, second and third power switches are operable independently of one another.