TH21830B - "Digital VCR with playback controls" - Google Patents

Abstract

A digital video cassette recorder that records high definition signals with MPEG compatible constructs, such as Grand Alliance signals, offered for use in the recording format, pre-played television frames. It will take ten tracks to record. Repeatability Fast in addition to the speed of recording is called "Tactical Play" is a repeat in the mode of "Tactical Play" as it requires a repeat head. Bracketing Tracks Record multiple tracks, however, with a pre-played television signal being created as a group of pictures consisting of A number of encoded frames between frames and expected frames. Where many record tracks will The data that represents the expected frame is contained. Therefore, the advance television signal that is reproduced in "String Play" may display a combination of irrelevant data checks. "Tactical Play" may be mitigated by the selection of the required replay speed and the actions taken. The distribution of designated points within each track from the point where data may be reproduced.These specific track locations will be used during recording. To lay out the image data of the call Foresee For repeatability during work "Tactical Play" Image data of "Tactical Play" is also duplicated during normal playback, but may not be used. The specific track position is selected to facilitate playback. Do the work of "Tactical play" at different speeds in both forward and reverse directions. With the telephone signal in advance Contains a number of anticipated frames and transitions from "Tactical Play" goes to normal speed replay. Need control function Which responds to repetition that is The speed of the normal replay of the encoded frames between frames, different methods of transitions. From the recreated image point are revealed for general selection and from the "static play" repeat.

Claims (3)

1. Digital video recorder to duplicate. Digital video signal at speed Of multi-speed operations, such recorders include: transducers To bring back the digital signal from the recorded media by Such digital signals There is one data signal representing the value of a digital video signal. And the second data signal represents the subject of that digital video signal that has been processed to reproduce, patented playback; The ways in which such transducers are connected To separate the said digital signal into one and the second such data; A path that responds to the selection of one of the speeds, multiple repetitions, and at least one signal of the first and second data. To give birth Source control signal; And the way of disconnecting with the way of such separation and responding Connect the control signal to make a selection between the first and the second data signal. For connections to form a visual source of the output; Which while switching from non-repeat mode to repeat mode Normal playback speed The second such signal is selected for the connection to form. Output image source Until the normal playback speed is loaded Which signal of the information One of the above will be selected for the connection to form the source of the output. 2. The digital video recorder as stated in claim 1, where the speed Of repetition many such speeds Instead, the speed one is equal to the normal playback speed and The second speed differs from that of normal playback speed. 3. Digital video recorder as stated in Clause 2, where the signal One of the above data will be selected as the output source. 4. The digital video recorder, as stated in Clause 2, where the signal The second such data will be selected as the output source. 5. The digital video recorder specified in claim 2, where, while working at the Working at that number one The aforementioned second speed will be chosen and the means of that choice. The signal of that second data will be selected as the output source immediately. 6. Digital Video Recorder as stated in Clause 2, where the signal Of the said second data will be selected during the transition from that second speed operation. Go to work at that speed one, and when returning to work at that one speed The signal of the aforementioned data is selected 7. Digital video recorders as described in Clause 2, where the transition from the non-reproducible mode to the aforementioned speed. Such control signal will Control the path of such selection to select the second such signal. For formation It is a still image and selects the signal of the first data when it resumes operation at that speed. 8. Digital video recorders as stated in Clause 1 where the signal The digital image contains an interchangeable, MPEG-compatible forman 9. Digital Video Recorder as described in Clause 1, where speed Of repetition many such speeds Instead, the speed one is equal to the normal playback speed and The second speed is the same as the normal playback speed in reverse direction to that first speed 1 0. Digital Video Recorder as stated in Clause 9, where the signal of the aforementioned second data is selected as the source. Picture of output To repeat at a speed that Such two in reverse direction 1 1. Digital Video Recorder as stated in Clause 1 where the model Of the said process of such digital video signals Displays the digital picture that contains Sharpness decreased by 1 2. Digital Video Recorder to reproduce digital video signals, such recorders contain: Transducer, playback for transmitting digital signals from recorded media. The digital signal contains the first and second data signals, MPEG compatible formats, and the first data signals represent the image data for reproducing reproduction speeds. Normal playback, and the signal of the second such data represents the image data for repetition at that speed. Than normal playback speed; The path to which the sandducer is connected To separate the said digital signal into a signal of the first such data. And the second thereof; A selection path, connected to the said pathway, is to select a signal from that first data signal. And the second thereof; And a means of decoding that is connected to obtain one of the signals from The first such information and the second thereof For decoding to form a signal for display use, which at the beginning of repetition The path of such selection will select the signal. Of the aforementioned second data for connecting to the aforementioned decoder. And respond to the way of The decoder detects the presence of one frame in the signal of the first data, the path of such selection selects the signal of the first data for connection to the decoder 1 3. Video recorder Digital, as stated in claim 12, where the transition from repetition at a speed greater than the normal playback speed to a repetition at normal playback speed, a second such signal is connected for decoding. And respond to The presence of one frame signal in the signal of one such data. The way of making such choices The signal selection of the first data for connection to the aforementioned decoder.