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| Accordingly, it is an object of the present invention to provide a compressed image data recording ... |
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| Continuous speed control system for video tape recorder |
| OF THE ILLUSTRATED EMBODIMENT Video tape editing control systems for cassette helical scan video ... |
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| Apparatus for threading magnetic tape from a single reel cartridge in a rotary head tape transport |
| According to the present invention, there is provided in a rotary head magnetic tape recorder, ... |
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| Video copy protection process enhancement to introduce horizontal and vertical picture distortions |
| In accordance with the present invention, the above-described prior art "basic" copy protection ... |
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| Image information recording and reproducing system with aspect ration discrimination |
| It is, therefore, an object of the present invention to provide an image information processing ... |
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| Magnetic writing head for magneto-optical recording with thick protective coating |
| According to the invention, the magnetic head is produced on a silicon substrate, which makes it ... |
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| Method and apparatus for scrambling and descrambling of video signal with edge fill |
| OF THE INVENTION Scrambler Operation Throughout the description following, specified parameters ("... |
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| Storage retrieval system with pivoted holder frames |
| It is an object of the present invention to provide an improved article retrieval and storage ... |
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Reproduction apparatus having means for initializing flag memories during slow motion and freeze reproduction
| Details |
Inventors: Koya, Toshiaki; Suesada, Kunio;
Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka, JP)
Primary Examiner: Envall, Jr.; Roy N.
Assistant Examiner: Tran; Thai
Attorney, Agent or Firm: Wenderoth, Lind & Ponack
A method and apparatus of reproducing data recorded on a recording medium encompass generating a flag indicative of a state of the recorded data, storing the recorded data into a data memory and the flag into a flag memory, reading the recorded data from the data memory and flag from the flag memory, and selectively initializing the flag memory during a reading period, such as slow-motion reproduction and freeze reproduction, in which the recorded data and flag are to be repeatedly read out from the data memory and flag memory a number of times prior to a subsequent writing of the recorded data and flag into the data memory and the flag memory. The initializing of the flag memory is carried out only during a final time the recorded data stored in the data memory is read during the reading period. |
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DETAILED DESCRIPTION We claim: 1.
A method of reproducing recorded data which has been recorded on a recording medium, comprising the steps of: detecting the recorded data from the recording medium; generating a flag indicative of a state of the detected recorded data; storing the detected recorded data into a data memory and the flag into a flag memory; reading the detected recorded data from the data memory and the flag from the flag memory; and initializing the flag memory simultaneously with said reading of the flag from said flag memory during a reading period in which the detected recorded data and flag are to be repeatedly read from the data memory and flag memory a number of times prior to a subsequent writing of the detected recorded data and flag in the data memory and flag memory; said initializing step being carried out only during a final time the detected recorded data stored in the data memory is read during the reading period prior to the subsequent writing of the detected recorded data into the data memory.
2.
A method as recited in claim 1, further comprising the step of switching the flag memory between a first mode in which the flag memory is simultaneously initialized and read, and a second mode in which the flag memory is read only.
3.
A method as recited in claim 2, further comprising the step of applying a signal to the flag memory during a later half of the reading period to switch the flag memory to the first mode.
4.
A method as recited in claim 2, further comprising the step of switching the flag memory between a first case in which the flag read out during a first half of the reading period is written again at a same address during a later half of the reading period, and a second case in which predetermined constant value is read out and is written during the later half of the reading period.
5.
A method as recited in claim 2, further comprising the steps of inverting and delaying by one field period a timing signal for switching between reading and writing of the flag memory and data memory, and switching the flag memory to the first mode according to an exclusive AND of the timing signal and the inverted and delayed timing signal
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TV Signal 
