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AssigneeVictor Company of Japan, Ltd.
InventorTakayuki Sugahara
Estimating the term…
A method for recording and reproducing a coded signal on/from a recording medium of a recording and reproducing apparatus. The coded signal is coded at a predetermined coding rate and transmitted to the apparatus for a time shorter than an actual reproduction time at a transmission rate higher than the coding rate. The method comprises the steps of recording the coded signal transmitted on the recording medium at a first transmission rate substantially equal to the transmission rate; reproducing the coded signal recorded in the recording medium at the first transmission rate so as to store the coded signal in a buffer memory; and decoding the coded signal from the buffer memory at the coding rate to reproduce in real time by interrupting the reproduction of the coded signal responsive to a coded signal share in the buffer memory.
An apparatus for recording and reproducing a coded signal on/from a recording medium, the coded signal being coded at a predetermined coding rate (Rb) and transmitted for a time shorter than an actual reproducing time at a transmission rate higher than the coding rate (Rb), the apparatus comprising:
A method for recording and reproducing a coded signal on/from a recording medium, the coded signal being coded at a predetermined coding rate (Rb) and transmitted for a time shorter than an actual reproduction time at a fixed transmission rate higher than the coding rate (Rb), the method comprising the steps of:
Dependencies are inferred from the claim text.
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No related US applications are recorded in the indexed filing history.
Details of television systems: television signal recording
Using magnetic recording: on disks or drums
Pictorial communication
Term ended 2 Mar 2018 (estimated)
USPTO file history isn’t available for this patent, so only indexed dates are shown.
1. Field of the Invention
The present invention relates to a method for recording and reproducing coded signals of a motion picture (video signal) and a sound (audio signal), and an apparatus for recording and reproducing the coded signals transmitted from a transmission system to and from a recording medium, and particularly, relates to a recording and reproducing apparatus capable of performing a decoded reproduction in real-time processing while the coded signal transmitted from the transmission system is recorded in the recording medium.
2. Description of the Related Art
FIG. 1 is a chart showing a time relation between the transmission time of data of a program and a reproduction time of the data thereof in the prior art;
FIG. 2 is a block diagram of a first embodiment of a recording and reproducing apparatus equipped with a 2-head type RAM disc system for recording and reproducing coded signal transmitted from the transmission system in the present invention;
FIG. 3 is a block diagram of a second embodiment of the recording and reproducing apparatus equipped with the 1-head type RAM disc system;
The description is given of embodiments of a method and an apparatus for recording and reproducing the coded signal in the present invention referred to drawings, wherein a RAM (random access memory) disc system capable of recording and reproducing an information signal is used as a recording medium.
In the present invention, as the apparatus capable of recording and reproducing coded information signals transmitted from a transmission system and storing the signals in the RAM disc during recording operation, there are two type ones, i.e., one employing a 2-head type RAM disc system equipped with both a recording head and a reproducing head, and the other employing a 1-head type RAM disc system equipped with a recording and reproducing head.
FIG. 2 is a block diagram of a first embodiment of a recording and reproducing apparatus equipped with a 2-head type RAM disc system for recording and reproducing coded signal transmitted from the transmission system in the present invention.