KR0152586B1 - Method and apparatus for long time recording in vcr - Google Patents

Abstract

The present invention relates to an apparatus for video / audio recording processing of video tape during long time recording and a method thereof, comprising a TV mode and tape driving means for reproducing broadcast video signals and audio signals processed by video / audio playback processing means. A TVCR having a VCR mode for reproducing / recording a video / audio signal with respect to a driven video tape, wherein the long-term recording of the broadcast video / audio signal is specified and a plurality of video tapes applied to the long-time recording are specified. Designate a recordable time, and when the recording corresponding to the recordable time for each video tape is performed to temporarily store the broadcast video / audio signal for data tape replacement in the data storage means, the completion of the long time recording The broadcast video / audio signal temporarily stored in the data storage means in the corresponding video tape. It is to edit the configuration comprising the step of recording, so that, to ensure that video / audio signal is recorded without loss even when the exchange of the video tape in the case of long-term recording.

Description

Video / audio recording processing device and method of video tape during long time recording

1 is a block diagram of a TVCR to which a video / audio recording processing apparatus of a video tape is applied during a long time recording according to the present invention.

FIG. 2 is a block diagram for explaining an example of the video signal recording / reproducing section shown in FIG.

3 is a flowchart illustrating the video / audio recording operation of the video tape by the video / audio recording processing apparatus of the video tape during the long time recording according to the present invention.

* Explanation of symbols for the main parts of the drawings

11: key input unit 12: micom

13: Tuning data storage unit 14: OSD generation unit

15 tuner 16 voice IF processing unit

17: audio / video switching unit 18: voice playback processing unit

19: audio output unit 20: video IF processing unit

21: video playback processor 22: video output unit

24: tape drive unit 25: video / audio recording unit

26: video / audio recording processing unit 27: video / audio reading unit

28: video / audio playback processing unit 32: video signal recording / playback unit

33: clock oscillator 34: A / D converter

35: data encoder 36: data memory

37: data decoder 38: D / A converter

39: signal reproduction processing unit

The present invention relates to a video / audio recording processing apparatus and a method of videotape during long time recording. In particular, the exchange of videotape during recording is performed in a state in which a long time recording (24 hour recording) for a broadcast signal is specified in a TVCR. The present invention relates to a video / audio recording processing apparatus and a method for videotape during long time recording in which a video / audio signal of a timing to be performed is stored in an additional semiconductor memory and then edited and recorded after completion of recording.

In general, for a television which reproduces a video signal and an audio signal transmitted from a broadcasting station, for example, a VCR (video tape) for reproducing a video signal and an audio signal of a video tape or recording a television video signal and an audio signal on the video tape. It is known to use A / V system by combining signal recorder and wired A / V cable. In addition, a TVCR having an integrated structure has been introduced by eliminating the use of a wired cable for signal coupling between the television and the VCR, and mixing the TV mode of the television and the VCR mode for playing / recording the video tape.

Therefore, in the configuration of a television and a VCR or a TVCR, in which a wired coupling method is used to exchange signals, a television video signal and an audio signal can be reproduced through a CRT device and a spur key device or recorded on a video tape. It is also possible to reproduce video signals and audio signals recorded on video tapes.

In recent years, as the cable broadcasting era arrives, all-day broadcasting has been performed. Therefore, it is often required to record a long time by selecting a plurality of video signals and audio signals of a particular broadcast in TVCR. . However, in general, the recordable amount of video tape for recording a video signal and an audio signal is generally divided into about 60 minutes / 90 minutes / 120 minutes, so the recording mode (LP ( Even if a long play mode or the like is set, a plurality of video tapes must be replaced during long recording.

However, when recording is performed while replacing the plurality of video tapes, there is a problem that video signals and audio signals broadcast during the exchange time of the video tapes cannot be recorded.

The present invention has been made in view of the above circumstances, and when a long time recording is performed while exchanging a plurality of video tapes, the video and audio signals at the time of exchange of the video tapes are processed by a data processing algorithm and stored in a semiconductor memory. After that, the object of the present invention is to provide a video / audio recording processing apparatus and a method of videotape during long time recording so that the recording can be edited and recorded on a corresponding videotape.

According to an embodiment of the present invention for achieving the above object, a video mode for a video mode driven by a tape driving means and a TV mode for reproducing a broadcast video signal and an audio signal processed by a video / audio playback processing means. A TVCR having a VCR mode for reproducing / recording an audio signal, comprising: key input means for inputting a designation of a long time recording for the broadcast video / audio signal, and from the key input means to a broadcast video / audio signal; When a long time recording is inputted, the microcomputer controls the temporary storage and editing by data conversion processing of the video / audio signal, and the microcomputer controls the temporary storage and reading by the encoding / decoding of the video / audio signal. Video / audio signal recording / reproducing means for performing recording on the video tape and the broadcasting inputted from the key input means. And a video / audio signal recording / reproducing means for recording and playing back the broadcast video / audio signal read out by the video / audio signal recording / playback processing means on the video tape by being operated by the recording signal of the video / audio signal. It provides a video / audio recording processing apparatus of the video tape during long time recording configured.

The key input means includes a recording time designation key for inputting a recordable time of a plurality of video tapes applied during the long time recording, and designation of an exchange of video tapes when recording of the recordable time amount of each video tape is performed. A tape exchange key is provided.

The video signal recording / reproducing means operates by a control signal applied from the microcomputer to generate a clock signal for encoding / decoding the broadcast video / audio signal and the broadcast video / video based on the clock signal. An A / D converter for A / D conversion of an audio signal, a data encoder for performing data encoding of the A / D converted broadcast video / audio signal by a predetermined data compression algorithm (for example, an MPEG algorithm), and the encoded broadcast. Data storage means applied to the temporary recording / reading of video / audio data, and a data decoder for decoding the broadcast video / audio data read out from the data storage means by a data restoration algorithm corresponding to the predetermined data compression algorithm, A D / A converter for D / A converting the decoded broadcast video / audio data, and reproducing the D / A converted broadcast video / audio signal to And a signal reproducing processing unit which is applied to record on the dio tape.

The data storage means is composed of a semiconductor memory, preferably RAM or EEPROM, in which instant recording / reading of broadcast video signals is performed.

The micom causes the broadcast video / audio signal to be temporarily stored in the data storage means while the video tape is exchanged during long time recording, and when the video tape is completed, the broadcast video / audio stored in the data storage means. The fast-forwarding operation is performed as much as the amount of tape capable of recording signals.

Further, according to the present invention, the TV mode for reproducing the broadcast video signal and the audio signal processed by the video / audio playback processing means and the video / audio signal for the playback / recording of the video tape driven by the tape driving means. In a TVCR equipped with a VCR mode, designating a long time recording for the broadcast video / audio signal, designating a recordable time for a plurality of video tapes applied to the long time recording, and recording for each video tape. Temporarily storing the broadcast video / audio signal for replacing the videotape in the data storage means when the recording corresponding to the time is performed, and the broadcast video / temporarily stored in the data storage means in the completion state of the long time recording. A long time configured to edit and record an audio signal on the corresponding video tape. Provided are a video / audio recording processing method of video tape during recording.

The broadcast video / audio signal for the data storage means is stored in digital conversion and data compression processing of the broadcast video / audio signal sequentially corresponding to each video tape during the time required for exchanging the plurality of video tapes. When the long time recording is completed, it is read out to be edited and recorded in the corresponding recording position of each video tape.

Further, upon completion of the exchange of the plurality of video tapes, the exchanged video tapes are wound at a high speed by the recording allowance amount of the broadcast video / audio signals stored in the data storage means, so that continuous recording of the video / audio signals is performed. do.

In the long time recording according to the present invention as described above, in the video / audio recording processing apparatus and method of the video tape, when the long time recording is performed using a plurality of video tapes, the recording time for each video tape is designated. When the video tape is exchanged, the broadcast video / audio signal is stored in the data storage means by the additional semiconductor memory for the time required for the exchange, and when the video tape is completed, the amount of the broadcast video / audio signal stored in the data storage means As long as the long time recording is completed, the broadcast video / audio signal for each video tape stored in the data storage means is recorded. When recording for a long time by editing on the corresponding video tape Even changing time of the tape required to record the broadcast video / audio signal is possible.

EMBODIMENT OF THE INVENTION Hereinafter, one Example of this invention is described in detail based on an accompanying drawing.

FIG. 1 is a block diagram of a TVCR to which a video / audio recording processing apparatus of a video tape is applied during a long recording according to an embodiment of the present invention. In FIG. 11, reference numeral 11 denotes an overall function of a corresponding TVCR. As a key input unit for inputting, a mode setting button 11a for setting a TV mode for reproducing video signals and audio signals of a broadcast signal and a VCR mode for reproducing audio / video signals recorded on a video tape T; Rewind and rewind control of the channel selection button 11b for selecting a broadcast channel in the TV mode, the volume adjustment key 11c for adjusting the volume of the audio signal reproduced in the TV mode and the VCR mode, and the video tape T. Keys 11d and 11e, keys 11f and 11g for playing and stopping the video tape T, keys 11h for pausing the video tape T, for example, images played in TV mode / Long time recording of audio signal Recording time designation key 11i for inputting recordable time (e.g., 60 minutes, 90 minutes, 120 minutes, etc.) for a plurality of video tapes, and tape exchange for designating the exchange of video tapes (T) during long time recording. When recording for a long time on the key 11j and the video tape T, input of a recordable time for the video tape T to be exchanged under the operation of the recording time designation key 11i or in a reserved recording mode. And a 10-key 11k or the like for setting the time or inputting the channel number under the TV mode.

12 is a microcomputer that controls the overall function of the TVCR based on the key signal input from the key input unit 11, and when a long time recording is set while playing a video signal in the TV mode, It also controls the storage of the broadcast video / audio signal and the edit recording of each video tape of the stored broadcast video / audio signal.

13 is a tuning data storage unit for storing channel data for tuning all channels set in the corresponding TVCR, and 14 is a microcomputer 12 for the corresponding key signal inputted from the key input unit 11; OSD generation unit for generating an OSD signal for displaying the control situation as a letter / number on the screen, 15 is a channel selection button 11b or 10-key 11k provided in the key input unit 11; When the selected channel data is read and applied by the microcomputer 12, the tuner tunes a broadcast signal RF received from an antenna (not shown).

16 is a voice IF processing unit which detects the voice signal included in the broadcast signal of the channel tuned by the tuner 15, and performs intermediate frequency conversion and amplification processing, and 17 is a mode setting button 11a of the key input unit 11; The audio / video switching unit selectively outputs the audio signal / video signal of the TV signal or the audio signal / video signal of the video tape T under the control of the microcomputer 12 according to the TV mode or the VCR mode to be set.

18 is an audio playback processing unit for processing audio signals selectively output from the audio / video switching unit 17 to a level set by the volume control key 11c of the key input unit 11, and 19 is audio playback. An audio output unit for amplifying and outputting the audio signal reproduced by the processing unit 18 to be reproduced by the speaker SP.

20 is an image IF processor which detects an image signal included in a broadcast signal of a channel tuned by the tuner 15 and performs intermediate frequency conversion and amplification processing, and 21 is selectively output from the audio / video switching unit 17. An image that processes the video signal set by the key input unit 11 (eg, brightness adjustment, contrast adjustment, color adjustment, TINT adjustment, etc.) or the OSD signal generated by the OSD generation unit 14. 22 is an image output unit which amplifies and outputs the image signal reproduced by the image reproduction processing unit 21 so as to be reproduced by the CRT apparatus 23. As shown in FIG.

24 is a tape which executes driving related to winding / rewinding / pause the video tape T under the control of the microcomputer 12 when the VCR mode is selected by the mode selection button 11a of the key input unit 11. 25 and 26, for example, when recording / recording of the video tape T is set, the video / audio signal V / Aout input through the audio / video switching unit 17 is converted into a video tape ( A video / audio recording section and a video / audio recording processing section which process at a level for recording / recording in T).

Also, 27 and 28 read the video and audio signals recorded and recorded on the video tape T when the playback of the video tape T is set by the playback key 11f of the key input unit 11. A video / audio reproducing section for reproducing (V / Ain) the video / audio reading section, the read video signal and the audio signal, and applying the same to the audio / video switching section 17.

29 is a timer for counting the current time or the playback time of the video tape T and / or the recording start time set in the 10-key 11k in the state in which the reserved recording is designated in the key input unit 11. 30 is a display unit by a fluorescent panel indicating an operation state of a TVCR executed under the control of the microcomputer 12, and 31 is a recording time (recording start time and recording end time, recording channel number, etc.) for the reserved recording. Alternatively, data in which recordable times for a plurality of video tapes T set in the 10-key 11k are recorded under the operation of the recording time designation button 11i of the key input section 10 executed according to the present invention. It is a memory.

32 indicates that the video tape T is exchanged under the control of the microcomputer 12 when the video tape T is exchanged for a long time by the tape exchange key 11j of the key input unit 11. Video / audio during data conversion and temporarily storing the broadcast video / audio signal under the control of the microcomputer 12, and then recording to the video tape T under the control of the microcomputer 12 when the long time recording is completed. As a signal recording / reproducing section, the video / audio signal recording / reproducing section 32 has said tape exchange key 11j for exchanging the video tape T during long time recording as shown in FIG. A clock oscillator 33 for oscillating a clock signal for data conversion of a video / audio signal by a control signal provided from the microcomputer 12 according to the operation of the digital signal, and performing digital data conversion for the video / audio signal. A / D Converter (34 ), A data encoder 35 for encoding the digitally converted video / audio data with a predetermined data compression algorithm (for example, an MPEG algorithm), and a data recording / playback signal provided with the encoded video / audio data provided by the microcomputer 12. Data memory 36 composed of RAM or EEPROM, for example, written / read by (W / D '), and video / audio data read out from data memory 36 corresponding to the predetermined data compression algorithm. A data decoder 37 for decoding by a data restoration algorithm, a D / A converter 38 for converting the decoded video / audio data according to the clock signal oscillated by the clock oscillator 33, and the analog conversion. And a signal reproducing processor 39 for reproducing the applied video signal and applying it to the video / audio recording section 25.

Next, the operation of the video / audio recording processing apparatus of the video tape during the long time recording according to the present invention having the above-described configuration will be described in detail with reference to the flowchart shown in FIG.

First, when the control signal is received from the key input unit 11, the microcomputer 12 determines whether it is a control signal for setting the recording / reservation recording mode for the video tape T in step S11. If it is not a recording / scheduled recording mode, it is determined whether it is a control signal of the playback mode for the video tape T. If the playback mode is not set by the determination, the process proceeds to step 13 to apply the control signal. The driving of the corresponding video tape T is performed. For example, when the control signal is a signal obtained by operating the winding or rewinding buttons 11d and 11e of the video tape T, the tape driving unit 24 is performed. To control the winding / rewinding of the video tape T until an operation of the stop button 11g is detected.

On the other hand, when the control signal for setting the reproduction mode for the videotape T is detected as a result of the determination in the step S12, the microcomputer 12 executes the normal reproduction for the videotape T in step S14. To control. That is, the microcomputer 12 applies the switching signal SW to the audio / video switching unit 17 when the play key 11f is manipulated to play the video tape T. The video tape T is continuously transported by the tape driving unit 24 while allowing the reproduction of the video / audio signal reproduced in the < RTI ID = 0.0 > and / or < / RTI > the playback time counted by the timer 29 to be displayed on the display unit 30. In this state, a video signal and an audio signal recorded / recorded on the video tape T are read out through the video / audio reader 27 and the video / audio playback processor 28 to perform the audio / video. The speaker device SP is amplified by the audio output unit 19 and the image output unit 22 after being reproduced by the audio reproduction processor 18 and the image reproduction processor 21 through the video switching unit 17. And the CRT apparatus 23 are reproduced.

On the other hand, in the case of controlling the recording / reserved recording as a control signal in the step S11, in particular, in the case of the reserved recording, the microcomputer 12 uses the 10-key 11k of the key input unit 11 in step S15. The received recording time (recording start time and recording end time) and recording channel number (including the recording mode if necessary) are received and recorded in the data storage unit 31.

In this state, the microcomputer 12 receives the current time counted by the timer 29 and reaches the reserved channel number stored in the channel selection data storage unit 13 when the recording start time for the reserved recording is reached. The video / audio recording unit 25 and the video / audio recording processing unit 26 switch the audio / video switching unit 17 to the video tape T side while applying corresponding tuning data to the tuner 15 for tuning. When the recording of the video / audio signal is performed, the microcomputer 12 determines whether the recording time is reserved in a state requiring long recording (step S16), or it is determined that the long recording is not set. If normal recording is designated in step S11, the flow advances to step S17 to perform normal recording / scheduled recording. That is, the microcomputer 12 transmits the audio / video switching unit 17 to the switching signal SW so that the broadcast video / audio signal is transmitted to the video tape T and recorded when the TV video / audio signal is recorded. The video signal and the audio signal of the current channel pass through the audio / video switching unit 17 and are processed to the recording level by the video / audio recording processing unit 26 so that the video / audio recording unit ( 25) is recorded / recorded on the video tape T (step S16). Subsequently, when the recording of the videotape T is completed by the recording / reservation recording, the process waits for reproduction in step S18.

On the other hand, when the recording time required for long time recording is designated in step S16, the microcomputer 12 receives the designation of the recordable time for the plurality of video tapes in step S19, which is determined by the key input unit 10. It is executed for each video tape T by the 10-key 10k in the operation state of the recording time designation key 11i.

In this state, the micom 12 performs recording on the videotape T according to the method described in step S17 (step S20), and while the recording is in progress, the micom 12 performs the corresponding videotape ( When an operation of the tape change key 11j is detected for the exchange for T) (step S21), in step S22, the microcomputer 12 causes the video / audio signal recording / reproducing section 32 to apply a control signal. Accordingly, the clock oscillator 33 oscillates a clock signal for data conversion of an image and is applied to the A / D converter 34. Accordingly, the video signal is digitally converted by the A / D converter 34 and applied to the data encoder 35, and the video data encoded by the data encoder 35 by the predetermined data compression algorithm is stored in the video tape. It is stored in the data memory 36 by the control signal W / D 'applied from the microcomputer 12 during the time when the exchange of T is performed (step S22).

While storing the video / audio data to the data memory 36, the microcomputer 12 stores the amount of data stored in the data memory 36 when the video tape T is replaced (step S23). The video tape exchanged by controlling the tape driver 24 by determining (for example, it can be calculated based on the time required for the exchange of the video tape T) records the video / audio signal stored in the data memory 36. In order to secure the amount for the video tape (T) is moved forward at high speed (step S24), and the video signal reproduced through the audio / video switching unit 17 on the replaced video tape and then Long time recording of audio signal is performed continuously.

The microcomputer 12 determines whether the long time recording is completed in step S26, and if not, returns to step S20 to sequentially record the video tapes, and then exchanges the video tapes. The video / audio signal is converted into data and stored in the data memory 36 every time, and when the video tape is replaced, the video / audio signal is recorded on the replaced video tape again.

When the long time recording using a plurality of video tapes is completed as a result of the determination in step S26 by such recording, the video signal recorded in the data storage unit 36 is recorded by the microcomputer 12 whenever the plurality of video tapes are replaced. Are sequentially edited and recorded on the corresponding video tape. If the edit recording is designated by the key input unit 10 during the edit recording, the microcomputer 12 reads the image data into the data memory 36. The control signal W / D 'is applied, and accordingly, image data stored in the data memory 36 is read out and decoded by a predetermined data restoration algorithm in the data encoder 37, and the decoded image data is decoded. The analog signal is converted by the D / A converter 38 by the clock signal provided by the clock oscillator 33, and the analog-converted video signal is processed by the signal reproducing processor 39. And recorded on the video tape T through the video / audio recording unit 25.

When the editing recording of the plurality of video tapes is finished by such a process, the process proceeds to the process of waiting for the reproduction of the plurality of video tapes in step S28, and the reproduction of the plurality of video tapes is performed in steps S12 and S14. Will be executed in the same manner as described above.

As described above, the video / audio recording processing apparatus and video recording method of a video tape during a long time recording according to the present invention and the method according to the present invention every time a video tape is exchanged in case of performing a 24-hour broadcast recording using a plurality of video tapes. Since signals and audio signals are encoded and stored sequentially in a data memory made of semiconductor memory, edit recording is performed on the corresponding video tape at the end of the long recording. Therefore, even if the video tape is replaced, the video / audio signal is changed. Can be prevented from being lost.

Claims (8)

TVCR having a TV mode for reproducing broadcast video signals and audio signals processed by the video / audio playback processing means and a VCR mode for reproducing / recording video / audio signals for video tapes driven by tape driving means. Key input means for inputting a designation of a long time recording for the broadcast video / audio signal, and data conversion for the video / audio signal when the long time recording for the broadcast video / audio signal is input by the key input means. A microcomputer that controls temporary storage and editing recording by processing, and a video / audio signal recording controlled by the microcomputer to perform temporary storage and reading by encoding / decoding of the video / audio signal to be recorded on the videotape. / Is operated by the recording signal of the broadcast video / audio signal inputted from the playback means and the key input means. Video / audio signal recording / reproducing means for recording and reproducing the broadcast video / audio signal read out from the video / audio signal recording / playback processing means on the videotape. Voice recording processing device. 2. The video recording apparatus according to claim 1, wherein the key input means includes a recording time designation key for inputting a recordable time of a plurality of video tapes applied for the long time recording and recording of a recordable time amount of each video tape. A video / audio recording processing apparatus for a video tape during long time recording, characterized in that a tape exchange key is provided for designating an exchange. The video signal recording / reproducing means according to claim 1, wherein the video signal recording / reproducing means operates on a control signal applied from the microcomputer to generate a clock signal for encoding / decoding by the broadcast video / audio signal. A / D converter for converting the video / audio signal based on the A / D. A data encoder for performing data encoding on the A / D converted broadcast video / audio signal by a predetermined data compression algorithm (e.g., MPEG algorithm). Data storage means applied to the temporary recording / reading of the encoded broadcast video / audio data. And a data decoder which decodes the broadcast video / audio data read out from the data storage means by a data restoration algorithm corresponding to the predetermined data compression algorithm. A D / A converter for D / A converting the decoded broadcast video / audio data. And a signal reproducing processor for reproducing and processing the D / A-converted broadcast video / audio signal to be recorded on the video tape. The video / video recording apparatus of claim 1, wherein the data storage means comprises a semiconductor memory for performing instant recording / reading of a broadcast video signal. The method according to claim 1 or 4, wherein when the exchange of the video tape is completed while the broadcast video / audio signal is temporarily stored in the data storage means while the video tape is exchanged during a long time recording. An apparatus for processing video / audio recording of a video tape during a long time recording, wherein a high-speed rewinding operation is performed by a tape amount capable of recording a broadcast video / audio signal stored in the data storage means. TVCR having a TV mode for reproducing broadcast video signals and audio signals processed by the video / audio playback processing means and a VCR mode for reproducing / recording video / audio signals for video tapes driven by tape driving means. Specifying a recordable time for a plurality of video tapes applied to the long time recording while designating a long time recording for the broadcast video / audio signal, and recording corresponding to a recordable time for each video tape. Temporarily storing the broadcast video / audio signal for replacing the videotape in a data storage means, and in response to the broadcast video / audio signal temporarily stored in the data storage means in the completion state of the long time recording. Long time characterized in that it comprises a step for editing and recording on videotape Audio / video recording method of hwasi videotape. 7. The broadcast video / audio signal of the data storage means is further configured to digitally convert and compress the broadcast video / audio signal corresponding to each video tape during the time required for exchanging the plurality of video tapes. And processing and storing the data and reading out the edited recording at a corresponding recording position of each video tape when the long time recording is completed. The continuous broadcast video according to claim 6 or 7, wherein only the allowable recording amount of the broadcast video / audio signal stored in the data storage means is wound at a high speed when the exchange of the plurality of video tapes is completed. Video / audio recording processing method of video tape during long time recording, characterized in that recording of audio signal is performed.