Login| Sign Up| Help| Contact|

Patent Searching and Data


Document Type and Number:
Japanese Patent JPS4942226
Kind Code:
A
Abstract:
A receiver for receiving a composite signal consisting of a multiplexed video signal and pulse code modulated audio signal time division multiplexed in a predetermined sequence and having a first synchronizing signal synchronized with the audio signal code modulated pulses, and a second synchronizing signal including a number of synchronizing signals required for the reproduction of the multiplexed video and audio signals, wherein the first and second synchronizing signals are inserted in predetermined locations in the multiplexed video and audio signals. The receiver comprises a circuit for deriving the first synchronizing signal and for reproducing a synchronizing signal synchronized with the pulse code modulated audio signal, a circuit for deriving and reproducing at least a synchronizing signal out of the second synchronizing signals which is required for the reproduction of the video signal by using the reproduced first synchronizing signal from the first synchronizing signal, a circuit for deriving the video signal from the composite signal and adding thereto the reproduced synchronizing signal required for the reproduction of the video signal in a manner that the synchronizing signal can be detected by the amplitude separation from the video signal, and a circuit for recording the video signal added with the synchronizing signal and for repeatedly reproducing the composite video signal.

Application Number:
JP8373072A
Publication Date:
April 20, 1974
Filing Date:
August 23, 1972
Export Citation:
Click for automatic bibliography generation   Help
International Classes:
H04J3/00; H04N1/00; H04J4/00; H04N7/08; H04N7/081; H04N7/12; H04N7/56; (IPC1-7): H04N5/44



 
Previous Patent: JPS4942225

Next Patent: JPS4942227