JPS58161189A - Information reproducing and recording device - Google Patents

Abstract

PURPOSE:To prevent the recording of a program from being interrupted, by comparing the time necessary for the reproduction of each piece of program information with the remaining recordable time of a recording medium at an information recording part and controlling an information reproduction and the information recording part according to the comparison result. CONSTITUTION:Plural pieces of stereophonic sound program information (S), respective address data (Q), and time data T required for the reproduction of the respective pieces of program information are recorded on signel tracks of a disk 1. An optical head 3 reads information on a signal track, and after passing through a central processing part 11, a comparison part 16 compares the reproduction time of stereophonic sound program information to be reproduced next with the remaining recordable time data of a tape connected to a tape recorder 10; and a system controlling part 18 controls the operation mode of the tape recorder 10 according to the time comparison result. Thus, the recording of the tape is prevented from being interrupted.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for reproducing information from an information reproducing device that reproduces information from a recording medium such as a digital fist audio disk onto a recording medium such as a tape using an information recording device such as a tape recorder. Regarding an information reproducing and recording device configured to record, in particular, all of the reproduced information from the information reproducing device recorded on a recording medium in the information recording device, or a selected piece of degree information therein, This invention relates to an improved information reproducing and recording device that ensures recording up to the end of the information.

For example, when a disc having a signal track on which program information is recorded is run on a disc playback device and the output of the program information obtained is recorded on tape using a tape recorder, the actual playback time of the program information played back from the disc is If the recording time is shorter than the recordable time on one side of the tape, the entire playback output of the program information from this disc can be recorded on the tape1.
However, if the actual playback time of the program information played back from the disc is longer than the recordable time on the tape, the program information playback output from this disc will not be recorded at the end l, There is an inconvenience that recording is performed in a state where recording is interrupted. In this case, when the program information to be played back from the disc is multiple units of program information, the same problem as above occurs when comparing the actual playback time of each unit of program information for the horse owner with the remaining recording time on the tape. arise.

Therefore, the present invention compares the actual playback time of program information in an information playback section of a disk playback device and the remaining recording time of a recording medium in an information recording section of a tape recorder, and sets a predetermined time according to the comparison result. It is an object of the present invention to provide an information reproducing and recording device that can eliminate the above-mentioned disadvantages by displaying information on a computer or controlling an information reproducing section and/or an information recording section.

In FIG. 5, an embodiment of the present invention will be explained with reference to the drawings. In FIG. A plurality of pieces of, for example, stereo audio program information, accompanied by time data representing the time required for reproduction at the beginning thereof, are co-encoded and recorded. Furthermore, time data representing the time required to reproduce each of the plurality of stored stereo audio program information is collectively recorded on the innermost circumferential portion of the signal track. Such a disk is mounted in the information reproducing section in the embodiment of the present invention, and is given a predetermined rotation by a mortaco and driven so that the linear velocity of the signal track is constant. The information on the signal track formed on the disk is read by the light beam q from the optical head 3, and the read information is supplied to the decoder S. From the decoder S, the reproduced stereo audio program information S Three types of signals are obtained: , reproduction address data Q, and reproduction time de~riT4, where:
The content of the reproduction address data Q is adonos data corresponding to the stereo audio program information currently being reproduced. Furthermore, the reproduction time data T is time data that is reproduced at the beginning of each stereo audio program information before the reproduction of each individual stereo audio program information, and at the innermost circumference of the signal track of the disk. is time data that is collectively recorded and represents the time required to reproduce each of a plurality of pieces of stereo audio program information stored on the disc.

The reproduced stereo audio program information S sent from the left side of the decoder is supplied to an error correction circuit B, subjected to a predetermined color correction, and then supplied to a separation circuit 7. The separation circuit 7 separates the left channel information and right channel information, and each of the separated left and right channel information is sent to a digital/analog converter (hereinafter referred to as a D/A converter) 3.9. The respective output signals of the D/A converters g and 9 which are supplied and subjected to digital/analog & conversion are derived as a left channel audio output signal and a right channel audio output signal R, and are also used for information recording. The signal is supplied to the left channel audio input end and the right channel audio input end of the tape recorder 10 that constitutes the section. Further, the reproduction address data Q from the left side of the decoder is supplied to a central processing unit (hereinafter referred to as CPU) //. , Furthermore, the reproduction time data T from the decoder S is supplied to each of the first register /2 and the second V dimeta /3, in this case,
The first register 7.2 receives the control signal C from the CPU//
Based on /, the batch-recorded time data obtained at the innermost circumference of the signal track of the disk / out of the playback time data T is taken in as first time data T', and this is supplied to the CPU //. do.

The second register /3 also controls the time data to be played at the beginning of each stereo audio program information of the playback time data T to the second time register /3 based on the control signal C2 of the cPU//. TN, and send this to the CPU.
Supply to //.

/4 is a drive control unit, and this drive control unit /4 is connected to the CPU/
In response to the control signal c3 from /, the entire optical head 3 or the optical beam from the optical head 3 is moved in the radial direction of the disk (from the inner circumference to the outer circumference or from the outer circumference to the inner circumference). .

/31I'i display section, this display section /S is CPU//
A warning display is performed in response to the control signal C& from the controller. /B is a comparison section, and this comparison section /B is configured to collect third time data TN', which is obtained from the CPU // and represents the time required to reproduce the stereo audio program information to be reproduced next.
and the remaining time data T8 from the tape remaining time detection unit/7 connected to the tape recorder 10, which detects the remaining recording time of the tape and generates remaining time data corresponding to the detected remaining recording time. Then, the magnitude relationship of the times represented by each is determined, and when the time represented by the remaining time data T8 is smaller than the time represented by the third time data TN', a control signal C which becomes a high novelty is generated, This is supplied to CPU//. For example, the remaining tape time detection unit 7 detects the recording continuation state in the tape recorder 10 and uses a subtraction timer that is activated based on this result to determine the remaining amount of tape. The remaining amount of tape can be determined based on the correlation between the number of rotations and the number of rotations of the take-up reel, or the amount of remaining tape can be determined based on the rotation of the capstan or rollers involved in the running of the tape. , detects the remaining recording time of the tape.7g is a system control unit, and this system control unit/g is a CPU
In response to the control signal CA from //, the tape recorder 10
controlling the disc to a desired operating mode; then playing the plurality of stereo audio program information recorded on the signal track of the disc/ from the first one;
The operation of the tape saw coater 70 when recording on a tape from the beginning will be explained. CPU //
When the control signal C3 from the optical head 3 is supplied to the drive control unit /4', the optical head 3 is positioned at the innermost circumference of the signal track of the disk /, and the optical peak from the optical head 3 causes the signal of the disk / At the innermost circumference of the signal track of the disk/ from which the trunk information is read, time data representing the time required to reproduce each of the plurality of stereo audio program information recorded on the signal track of the disk/ is collectively stored. Since this time data is recorded in one batch, this time data is reproduced and becomes the first time data T'.
It is stored in the first register /2 as . and,
When the light beam from the optical head 3 reads information from the signal track of the disk / when it reaches the beginning of the /th stereo audio program information, the /th stereo audio program information recorded at the beginning of the /th stereo audio program information is read. The time data representing the time required for reproduction is reproduced and stored in the second register /3 as the λ-th time data TN. This second time data TN is supplied to the CPU// based on the control signal C2, and is further supplied to the CPU// based on the control signal C2.
The third time data TN' is supplied from U// to the comparator/B, and the remaining time data T8 from the tape remaining time detector/7 is also supplied to the comparator/B. A comparison is made between the time data Ts and the third time data TN' at this time, and the magnitude of the time represented by each of the two pieces of data is;
1 is determined, and if the time represented by the remaining time data T8 is greater than the time represented by the third time data TN', the control signal C5 from the comparator/B becomes low level. This low level control signal C5 is supplied to the CPU//, a control signal C3 is supplied from the CPU// to the drive control section, and the optical beam from the optical head 3 is controlled to read information. The first stereo audio program information is played back. In addition, along with this, the CPU//
A control signal C6 is supplied to the system control section /g, and the tape recorder 10 is placed in recording mode. and,
The reproduced stereo audio program information S at this time is converted into a predetermined left channel audio output signal L' and right channel audio output signal R by an error correction circuit B, a separation circuit 7, and a D/A converter 9. and right channel audio output signals R and R are supplied to the tape recorder 10,
Reading of information from the signal track of the disk/ by the optical beam from the 1° optical head 3 recorded on the tape further progresses, and the optical beam completes reading of the first stereo audio program information of the disk/. Then, when the beginning of the second stereo audio program information is reached, time data representing the time required to play the second stereo audio program information recorded there is played back, and this is used as the third stereo audio program information. The time data TN' is supplied to the comparator/B along with the remaining time data T8 from the tape remaining time detector/7, and in the comparator/B, the magnitude of the time represented by each of these time data is The time difference is determined and the remaining time data T
If the time represented by 8 is longer than the time represented by the third time data TN' at this time, the reproduction of the second stereo audio program information and the recording by the tape recorder 10 are performed in the same manner as described above. , such reproduction and recording operations are repeated as long as the time represented by the remaining time data Ts is longer than the time represented by the third time data TN'.

On the other hand, if the time represented by the remaining time data Ts is smaller than the time represented by the third time data TN', the comparison unit/
The control signal CS supplied from B to CPU// becomes high level. Along with this, a control signal Cρ is supplied from the CPU // to the display section /, and the display section 15 lights up or blinks to display a warning.1. At the same time,
A control signal C6 is supplied from CI)U// to the system control unit /g, and the tape recorder 10 is released from the recording mode σ and placed in the stop mode. At the same time, based on the control signal Ct from the CPU/, /, the address indicated by the address data Q currently being reproduced, of the first time data T' already stored in the first V dimeta/2. Stereo audio program information corresponding to each piece of information having a more advanced address is supplied to the CPU//, and these pieces of information are sequentially supplied to the comparator/B as third time data TN' from the CPU//. Ru. ]Then, in the comparing section/B, the magnitude relationship between the time represented by the remaining time data T8 and the time represented by the third time data TN' at this time, which is the first time data T', is sequentially determined. , when the time represented by the remaining time data T8 becomes shorter than the time represented by the third time data TN', the low level control signal C becomes
Supplied to PU//. As a result, the optical head 3 continues until the address of the stereo audio program information corresponding to the first time data T' at this time matches the address represented by the reproduced Atmes data Q supplied to the CPU//.
A control signal c3 is supplied from the CPU// to the drive control unit/g so that the light beam y from the CPU// is fast-forwarded on the signal track of the disc/. When the reproduction address/data Q becomes a predetermined value, the control signal Cv from the CPU// is set to a low level, the display operation of the display section /S is stopped, and the tape recorder 10 starts recording again. A control signal c6 is supplied from the CPU// to the system control section /g so as to set the mode. Further, a control signal C3 from the CPU// is used to cause the optical beam of the optical head 3 to read information appropriately. Then, the left and right channel audio output signals obtained from the reproduced stereo audio program information at this time are supplied to the tape recorder/θ and recorded on the tape. The time required to play back the stereo audio program information that is played back at this time is shorter than the remaining recording time of the tape, so the end of the tape is recorded on the tape, and the recording is interrupted and the recording device When recording the playback output of the program information obtained in the playback section in the information recording section, the time required to play each program information is compared with the remaining recording time of the recording medium in the information recording section, and the remaining recording time is determined. If the time is shorter than the time required for recording, a predetermined display is displayed, the recording operation of the information recording unit is stopped, or program information that can be recorded within the remaining recording time of the recording medium in the information recording unit but has not yet been recorded is displayed. Obtain the playback output of
Since the recording of this information is controlled, the reproduction output of the program information recorded on the recording medium is recorded up to the last part, and recording is prevented from being interrupted. Therefore, the apparatus according to the present invention is extremely convenient for use in producing recorded tapes on which various program information can be recorded and the tapes to be enjoyed playing back. .

In the above embodiment, the left and right channel audio output signals corresponding to the playback program information by the disk playback device are recorded from the first part of the tape in the tape/gouda. It goes without saying that the same effect as described above can be obtained even when recording on an unrecorded portion of a tape that has been previously recorded.

Furthermore, when a tape recorder having a reciprocating tape recording function is used as the information recording section in the apparatus according to the present invention, when the remaining recording time of the tape becomes less than the time required to reproduce the program information, The recording direction on the tape may be controlled to be reversed based on the comparison output from the comparison section1.

[Brief explanation of the drawing]

The figure is a block diagram showing essential parts of an example of an information reproducing and recording device according to the present invention. In the figure, / is a disk (recording medium), 3 is an optical head, g is a light beam, left is a decoder, O is an error correction circuit, 7 is a separation circuit, g, 9 are digital/analog converters, 10 is a tape recorder , // is the central processing unit (CPU), /, 2
is the /7th register, /3 is the Ωth register, /g is the drive control section, /S is the display section, /B is the comparison section, /7 is the tape remaining time detection section, and 7g is the system control section. be.

Claims (1)

[Claims] an information reproducing section for reproducing information from a recording medium in which program information is recorded with time information representing the time required for reproducing the information; and an information recording section for recording a reproduction output of the program information obtained from the information reproducing section. , a remaining time detection unit that detects the remaining recording time of the recording medium in the information recording unit; and a time required for reproduction represented by reproduction time information obtained in the information reproduction unit prior to reproduction of the program information; a comparison unit that compares the remaining recording time detected by the remaining time detection unit and generates a predetermined comparison output when the detected remaining recording time is smaller than the time required for reproduction indicated by the reproduction time information; and, displaying a display corresponding to the comparison output from the comparison section, and/or controlling at least one of the information reproducing section and the information recording section based on the comparison output from the comparison section. an information reproducing and recording device comprising: