DE3403168A1 - SIGNAL RECORDING ARRANGEMENT AND ROTATING RECORDING VEHICLES EXAMPLE OF THE ARRANGEMENT - Google Patents

Description

VlCTOR COMPANY OF JAPAN, LTD. , Yokohama, Japan

Signal recording arrangement and from the Arrangement of recorded rotating recording media

The invention relates to a signal recording arrangement for a rotating record carrier as well as on a rotating recording medium which is recorded with the signal recording arrangement. The inventive The signal recording device is designed to be a control program Control program signal is time-sequentially (time-split) multiplexed with an audio signal and that time-sequentially (time-split) multiplexed signal or instead of the audio signal that the control program representing control program signal independently records, so that an alternate operation during reproduction or dialog operation between a playback device playing the rotating recording medium and a Device can be run that can make a distinction, for example a computer, and that connected to the playback device. The control program contains input and output commands as well as internal processing commands of the external device, for example the computer, and control commands of the playback device. Of the rotating recording medium is characterized according to the invention in that the recording located on it has been made by the signal recording arrangement identified above.

Numerous attempts have already been made, on a rotating recording medium, which is described below simply called a disk, to make more efficient use of recorded information signals. These attempts also include the connection of a disc player to an external device such as a personal device Use imaginary calculators that discriminate

or make distinctions. The disk playback device is to be controlled by the computer. For example, the computer can be connected to a playback device which is designed so that it can play a video disc on a spiral track or on concentric tracks Video signal and audio signals in the form of changes in geometric configuration are recorded. In this case, it is possible to use the video disk in a so-called reciprocal mode or interactive mode to play. This makes it possible to use the video disk in different ways, for example for recording educational programs and for recording games. If one for personal use imaginary computer is connected to a playback device that is used to play an audio disc, it is possible to monitor or display an image related to the sound reproduction and from the computer is generated at the same time that the associated audio signals are picked up from the disk and played back will. Such simultaneous reproduction of picture and sound makes playing the audio disc for the Listener more interesting and more enjoyable.

So that the disk player controlled by the computer intended for personal use and in the Computer can generate information related to the signal reproduced from the disk it is necessary to load a control program into the computer. This control program must be in a predetermined programming language must be written in accordance with an interpreter or interpreting program of the computer used or which is placed on a monitor device or the like. One must therefore, depending on the information content (type) of the disk, a certain number of control programs are available.

place. Furthermore, it is necessary according to all models of the computers that may be used prepare a certain number of control programs even for the same type of disks. The need Developing many of the required programs is therefore a heavy burden and burden.

Since the control program continues not on the video disk is provided, the user must independently keep the control programs. With a bigger one The number of kinds of video disks to be stored increases the need for the user to appropriately Number of control programs to be stored independently or separately “You therefore also need a lot of space for the large number of control programs. Another shortcoming is that in controlling the Video disc player by the computer in the conventional manner described between the computer and only a unidirectional flow of information is possible for the video disc player. The one from the computer Namely, the originating information is simply fed to the video disk player and there is none Possibility of inquiring about the respective operating status of the video disc playback device through the computer.

Furthermore, there is a type of audio disk in which a control program is written on, for example, an inner peripheral portion the disk is recorded. With this audio disc, however, is due to the additional recording of the control program, the recording capacity for the audio signals is low. The ones representing the control program Namely, signals are recorded on tracks other than the tracks for the audio signals. About that In addition, you can only carry out a desired mode of operation or a certain desired operation, after the entire recorded control program

is loaded into the computer. So that you can simultaneously look at an image generated by the computer and that of the audio disc can enjoy the recorded sound, it is necessary to accept a predetermined waiting time, which is necessary to remove the recorded control program from the audio disk and to the to load the calculator intended for personal use. There is thus a disadvantage that with the decrease and playback of the audio signals cannot start immediately. Furthermore, the storage capacity of the Computer must be relatively large, since the computer must save the entire recorded control program at once. With this conventional method, the computer is also unable to access the audio disc player control, and there is therefore no inactive operation or dialog.

Finally, there is also a gaming machine that is designed to be played with using a computer intended for personal use and a floppy disk serving as an external memory Adventure game can play. This play device can but only reproduce one type of cartoon. In addition, there is a storage capacity in of the order of 4 kilobytes is required to obtain a still image. If you use this for example a compact disk with only one recording side can only play back 40 still pictures. In addition to the video signals relating to the still images, however, it is also necessary to use the control program save.

It is therefore a general aim of the invention to provide a signal recording arrangement for a rotating record carrier and to provide a rotating recording medium recorded by this arrangement,

in which the difficulties and inadequacies described above no longer occur.

A signal recording arrangement for a rotating recording medium is characterized according to Invention in that it converts a control program signal representing a control program into a signal format brings, in which this control program signal is modulated on the basis of a reference clock signal whose Period equal to a multiple of the horizontal scanning frequency corresponding to a natural number of a video signal, and then the modulated signal is band-limited to the band of an audio signal, and that they time-sequentially (time-split) the control program signal having this signal format with the audio signal multiplexed and the multiplexed signal on the rotating recording medium in one state records, in which the control program signal in the multiplexed signal with the horizontal synchronizing signal of the video signal is synchronized, or that it takes the place of the control program signal having this signal format of the audio signal independently in a state where the control program signal is synchronized with the horizontal sync signal of the video signal is synchronized. A rotating assembly designed according to the invention Record carrier is characterized in that it is made using the signal recording arrangement identified above is provided with a record that contains the control program. The control program has input and output commands as well as internal processing commands of a device, for example can be designed as a computer intended for personal use or home use and accordingly has a discriminatory function, i.e. divorces and can make decisions, and that with

is connected to a playback device intended for playing back the rotating recording medium. Further contains the control program control commands of the playback device.

According to the invention it is thus possible to use the control program signal in a limited band of the audio signal to record. Furthermore, the control program signal can be on the same track as the video signal and the Audio signal can be recorded. Compared with the conventional case where the control program signal is recorded on a track that is independent and different from the track of the video and audio signals, the limited recording capacity of the rotating recording medium is not in the invention further restricted. As for the video signal, in particular, it becomes possible to have a recording capacity to provide that the recording capacity of a not provided with a control program corresponds to rotating recording medium. Furthermore, when cutting the rotating recording medium continuously record the control program signal by receiving the control program signal from a Mother tape is recovered simultaneously with the video and audio signals. The control program that is based on the same Type of rotating recording medium recorded can always be in a predetermined manner be written by language, in that, according to the total number of kinds of languages, which may be used in the external devices, a number of interpretation programs that are used to interpret the language in which the program is based is recorded on the rotating recording medium.

Compared to a conventional case where there is

is necessary a certain or certain number of Prepare control programs that correspond to all types of possible external devices, and do so yourself with respect to the same type of rotating recording medium, the subject matter of the invention involves the effort and the toil for the development of software and programs reduced to a considerable extent.

In a preferred development of the signal recording arrangement according to the invention, the control program is recorded in units of blocks, which each have a fixed length and are transmitted in a predetermined duration which is approximately equal to the duration of a field of the on the rotating record carrier video signal to be recorded. Equally, the rotating formed according to the invention Record carrier on a record consistent therewith. After that it is possible to compare to a case where the control program is recorded in units of variable-length blocks, the To simplify the structure of the playback device.

Furthermore, the signal recording arrangement according to the invention is preferably developed in such a way that that the control program signal is subjected to a self-clock modulation, for example a two-phase pause modulation or a two-phase marker modulation using a reference clock signal that one obtained by frequency division of the horizontal synchronizing signal frequency in the ratio 1/2, and that the so modulated Control program signal is recorded on the rotating recording medium. Likewise extends the invention also applies to a rotating recording medium in which the control program signal is preferred is recorded in the above manner. You play

from a rotating recording medium provided with such a recording in the playback device, the phase of the recovered horizontal sync signal corresponds approximately to the phase of the peak value im recovered modulated control program signal. This makes it possible to export the data using the recovered or reproduced horizontal synchronizing signal to demodulate without the need to generate a special clock signal component.

Furthermore, the signal recording arrangement according to the invention is preferably designed so that in a portion of a specific address signal that continually has the same value within an existing, the Is an address signal indicating track position information, a signal indicating whether the control program is recorded. The rotating recording medium is preferably in a corresponding manner Way trained. According to this development of the invention, the playback device can use the recorded position of the control program discriminate or determine without using an address signal reproduction system of the to impair existing playback device and without an additional address signal for a display to use to determine whether the control program is recorded.

In addition, the signal recording arrangement according to the invention is preferably characterized in that that the control program is recorded in a manner in accordance with which it is in the form of a direct statement (Command) is written. The recording medium is preferably designed in a corresponding manner. According to the invention, the data length of the commands in the control program is such that most commands

recorded within one field of the video signal are. It is therefore not necessary to run the entire control program into the discrimination function before starting playback having to load the device. This means that you can start playing immediately and the storage capacity of the device may be small compared to the storage capacity that is available needed for a case in which the entire control program is loaded into the device before playback begins must be grounded ",

Finally, according to the invention, a rotating recording medium is also provided which has at least large storage capacity for the video signal can provide (maximum motion picture recording of 60 min). According to the invention it is possible, at least with regard to the video signal, to have the same storage capacity as in the case of a conventional rotating recording medium on which no Control program is recorded. This storage capacity is compared to the storage capacity of a floppy disk considerably large. Furthermore, there is no need to use an external memory that would otherwise be used for storage of the control program must be used.

The invention is described below with reference to drawings explained by way of example. It shows:

F I G. 1 is a general overview example to illustrate a method for producing a Control program to be recorded by the signal recording arrangement according to the invention,

F I G. 2 shows an example of the nature of data in the course of the production of a control program signal,

F I G. 3 shows an example of the nature of a substantial proportion of the components shown in FIG. 2 shown Data,

F I G. 4 examples of values of information bits, an error correction code and a parity bit in the essential part of the data according to FIG. 3,

F I G. 5 another example of the condition of data in the course of the production of the control program signal,

F I G. 6a and 6B representations to explain a rearrangement of data,

F I G. 7 shows an example of the nature of the control program signal of a minimum block unit and an associated transmission period, F I G. 8 is a systematic block diagram an embodiment of the signal recording arrangement according to the invention,

F I G. 9 time waveforms to explain the operation of an essential part of the Block diagram according to FIG. 8th,

FIG. 10 signal curves over time for explanation the operation of another essential part of the block diagram of FIG. 8th,

FIG. 11 the location of a bit indicating whether the control program signal is to be recorded within a track number address signal,

F I G. 12 is a graphical representation of an example of the frequency spectrum of the signals generated on the rotating recording media according to the invention are to be recorded,

F I G. Fig. 13 shows an example of a general track pattern on the rotating recording medium the invention,

FIG. 14 shows an example of an interconnection between a disk player for the rotating recording medium and external devices that are connected to the disk playback device from the outside,

FIG. Figure 15 is a general top view one embodiment of the disk player, F I G. 16 is a systematic block diagram an embodiment of part of an existing signal reproducing device in the disc reproducing device,

F I G c 17 is a systematic block diagram of an example of a display device for display a control program signal in the disk player, '

FIG. 18 is a systematic block diagram an example of a personal computer connected to the disc player is,

FIG. 19 is a systematic circuit diagram of an example an essential part of the block diagram of FIG. 17,

FIG. 2OA and 2OB systematic block diagrams each of examples for other important parts of the block diagram of FIG. 17,

F I G. 21 is a flow chart showing the operation of a microprocessor when the microprocessor as a decoder according to FIG. 17 is used,

F I G. 22 is a circuit diagram showing an example of the decoder of FIG. 17 if the decoder is from a digital Circuit is formed,

F I G. 23 is a circuit diagram for explaining input signals and output signals that are sent to the Pins of an essential part of an interface circuit RS232C occur,

FIG. 24a, 24b, 24C and 24D are flow charts for Explanation of how a command analyzer works in the block diagram of FIG. 17 and

FIG. 25 is a diagram for explaining a Example of the information content recorded on the disc, the recorded position of the control program signal as well as the content of the control program.

In the case of the on the basis of FIG. 1 is based on a scenario 11 of a TV camera 12 captured a picture. The video signal generated by the television camera 12 is processed and then recorded on a magnetic tape by means of a video tape recorder 13. In addition, for example a voice presenting the content of the script 11 is recorded by a microphone 14. That from the microphone 14 generated audio signal is processed and then recorded with the aid of a tape recorder 15 on a magnetic tape. Furthermore, a control program 16 based on the script 11, which is basically in the form is written by direct statements (direct commands) of a high-level language, regardless of the generation the video and audio signals provided. In addition, a coupling or connection program is provided. During the production of the control program 16, the addressing of jump commands is carried out with the aid of Marks executed and page coordinate commands (e.g. locate commands and pen commands) are in the form of percentages of the X and Y

Coordinate specified. This measure is taken because the size of the screen of the personal computer or the like depends on the model is. In this way it is independent of the model used for personal use Computer possible to display the picture essentially at an intended position on the screen,

The control program is translated in an editor and compiler 17 into an intermediate language which the Invention is peculiar. Then on the basis of the control program j which is translated into the intermediate language a simulation is carried out and it is determined whether there is an error in the control program. This is done in a simulator and debugger 18. If in the simulator and debugger 18 it is found that there is an error in the control program, the one in the higher language becomes Control program 16 modified. The modified control program is then back through the editor and compiler 17, and the simulation and troubleshooting takes place in the simulator and troubleshooting. To this Way, the control program is produced in the intermediate language. The one present in the intermediate language The control program is further modified by the fact that the distance between the marks (the distance between scenes that should be inserted) and the sequence of marks is taken into account by reference to

JO a brand table 19, and that continues to be the place of Subroutine instructions are taken into account. This is finally created by entering the control program at predetermined time positions with respect to the video and audio signals to be reproduced, a control program

On the other hand, the video tape recorder 13 reproduced video signal and the audio signal reproduced by the tape recorder 15 of a predetermined signal processing subjected, which will be described later. In addition to this predetermined signal processing an address signal indicating the track number, the Time code (time address) or the like. Furthermore, the original information data is saved in The control program 20 is subjected to a processing which is explained below with reference to a block 21 will.

So becomes the block length of the original information data set in control program 20 to any one of data block units, each a multiple of 6 bytes. If the block length of the original information data is less than or is 6 bytes, the data block unit is set to 6 bytes (48 bits). If the block length is greater than 6 bytes and less than or equal to 24 bytes, the data block unit is set to 24 bytes. Is the If the data block length is greater than 24 bytes and less than or equal to 48 bytes, the data block unit will be on 48 bytes fixed. If the data block length is greater than 48 bytes and less than or equal to 96 bytes, the data block unit is set to 96 bytes in a corresponding manner.

The control program 20 consists of control commands and sub-commands (e.g. special video effects) of a disk reproducing device to be described, input and output control commands of one external device, for example a computer intended for personal use, a gaming device or the like, which is a differentiating or deciding

dungsfimktion has and with the disk player connected, and from internal processing commands (e.g. substitution instructions, Operation instructions, commands for generating more arbitrary Numbers and subroutine batch commands) of the external device. The control program 20 is fundamental Written in direct instructions (direct instructions) and the block length is typically less than or equal to 6 bytes or less than or equal to 24 bytes o In the case of sequence substitutions, data instructions and control programs such as a subroutine stack stored in an external device the block length can be larger than 48 bytes. Is the data length of the original Information data shorter than the specified data block length p which has been set or set, foci inserted into the remaining data length blank data. This blank data is inserted so that data can be rearranged, which will be explained later becomes "■"

The data block length specified above is divided into units of 6 bytes. The beginning of everyone A header is added to these 6-byte data sections, which represents 1-byte information. FIG. 2 shows a 1-byte header HE which is a 6-byte information data part DO to D5 was prepended. Each of the 7 bytes that make up the HE header and the information data Form DO to D5 is divided into upper 4 bits and lower 4 bits. A 3-bit error correcting code and a 1-bit parity bit are added following the upper 4 information bits that are in each of the above-mentioned 7 bytes relate to information data. Similarly, are a 3-bit error correcting code and a 1-bit parity bit is provided following the lower 4 information bits contained in each

of the 7 bytes described above on information data relate. FIG. 3 shows data obtained from either upper 4 or lower 4 information bits b1 to b4 from the 3-bit error correction codes b5 to b7 and the 1-bit parity bit b8 pass.

The values of the in FIG. Bits b1 to b8 shown in FIG. 3 are, for example, corresponding to the illustration according to FIG. 4 selected. Thus there are both the upper 4 information bits and the lower 4 information bits of each of the 7 bytes according to FIG. 2 each 4-bit check bits b5 through b8 added as is from FIG. 3 emerges. The one shown in FIG. 2 block shown is thus formed by 14 bytes, as shown in FIG.

shows. In FIG. 5 are the upper 4 bits and the lower 4 bits of that shown in FIG. 2 head part HE shown with HEy and HE ^ denotes. The same applies to the presentation according to FIG. 5 the upper 4 information bits of the information data DO to D5 according to FIG. 2 indexed with U and the lower 4 information bits of the information data DO to D5 according to FIG. 2 indexed with L. Furthermore are in FIG. 5 denotes the 4-bit check bits, which consist of the error correction code and the parity bit, with HA. The 4-bit check bits HA place them directly in them preceding 4-bit information data, if necessary and correct the error.

Next, the data in the 14 bytes of FIG. 5 rearranged (so-called scrambling or nesting), to minimize the effects of temporally concentrated disturbances during playback to keep. The 14-byte data according to FIG. 5 are divided into 1-byte units. Assuming the Data in each of these bytes as shown

according to FIG. 6A, this data is rearranged as shown in FIG. 6B. After this rearrangement or rearrangement of the data, a 1-byte frame code is added to the beginning of the rearranged 14-byte data added to indicate the beginning of the rearranged 14 = byte data. A transmission period, in the 1 bit of a 15-byte control program signal that comes from the 1-byte frame code and the rearranged 14-byte data is set equal to 2H, where H represents a horizontal scanning period. If it continues as shown in FIG. 7 one video signal behind in the recorded video signal the NTSC system, the 15-byte control program signal described above is transmitted for a duration of 240H, from a scan line number 21H to a scan line number 260H, a scan line number 284H up to a scan line number 523H). Furthermore, the 15-byte control program signal is from a Self-clock modulation arrangement modulated and, for example, time-sequentially (time-split) with the audio signal multiplexed. This time-sequentially (time-divided) multiplexed signal is made using one in FIG. 1 recorded cutting device 22 on a plate 23.

The original information data of the control program are thus divided into units of 6 bytes and then converted into the 15-byte control program signal, which contains the 1-byte frame code as described in connection with FIG. 2 to 7 is described. This in FIG. 7 is the 15-byte control program signal recorded for nearly a field. However, the 15-byte control program signal is used for Time spans G1 and G2, which together amount to 22.5H, are not transmitted. These time periods G1 and G2 are like this

provided that the 15-byte control program signal is safe can be reproduced even if special reproduction is made and the acceptance reproduction element of a video disc player still to be described in the area of the scan line number 11H from one track turn to another track turn within the vertical blanking period is moved. If the original commands in the control program are less than or equal to 6 bytes, the same 15-byte control program signal can be repeatedly recorded in one track turn of the disk 23 (e.g. repeating four times in one turn of the track). In this case it is possible to reproduce the control program signal even in the event that the acceptance reproducing element inevitably from one turn of the track to another turn of the track at an arbitrary position on the one turn of the track is moved.

Next, a signal recording arrangement, which records the signals according to the invention, are explained in more detail. A shown in FIG. The control program generator 25 shown in FIG. 8 generates according to a time cycle according to FIG. 7, the control program signal, which in accordance with the reference to FIG. 1 to 7 explained method has been. A color video signal source 26 generates, for example, an NTSC color video signal. An audio signal source 27 provides a first channel audio signal and an audio signal source 28 generates a second channel audio signal. The control program signal generated by the control program signal generator 25 is generated is an NRZ signal (recording signal without return to the ground state), which in its occurring form is not suitable for recording and playback. The control program signal is therefore by means of a self-clock modulation arrangement, for example by frequency modulation

(FM), two-phase marking modulation or two-phase pause modulation, into a signal according to FIG. 9 (C) reshaped ο

A shown in FIG. The horizontal synchronizing signal fjj shown in FIG. 9 (A) is supplied to a modulator 29 from a synchronizing signal separating circuit 37. The modulator 29 frequency-divides the horizontal sync signal f n by a ratio of 1/2 and subjects the control program signal to two-phase marker modulation using the frequency-divided horizontal sync signal as a reference clock signal. As can be seen from FIG. 9 (C), the modulated signal alternately reverses its state with a period of 1H when the data in the mode shown in FIG. 9 (B) form a ^B 1 ", and it alternately reverses its state with a period of 2H when the data in the NRZ signal is" O ". Compared to the NRZ signal, the modulated Signal has a lower DC voltage component and a larger clock signal component. It is therefore suitable for recording and playback. The modulated signal is limited in terms of frequency to the band of the audio signal and delayed by about 1H in a low-pass filter 30. The output signal of the low-pass filter 30 therefore has a substantially sinusoidal waveform as shown in Fig. 9 (D), Figs. 9 (A) and 9 (D) clearly show that the phase of the peak values in the output signal of the low-pass filter 30 is substantially the same as the phase of the horizontal synchronizing signal f _H match. In the disk reproducing device to be described, the data can therefore be demodulated using the reproduced horizontal synchronizing signal fjT, and it is not necessary to reproduce the clock signal component of the modulated signal.

The control program signal, band-limited and delayed in the low-pass filter 30, is fed to a switching circuit 31. The circuit 31 is designed so that it optionally forwards the control program signal. For the duration during which the control program signal is not generated, the circuit 31 optionally forwards the second-channel audio signal from the audio signal source 28. The control program signal or the second-channel audio signal therefore appear at the output of the circuit 31. A time-sequentially (time-divided) multiplexed signal from the control program signal and the second-channel audio signal therefore passes from the circuit 31 to a frequency modulator. The frequency modulator 33 then supplies a frequency-modulated signal f * in a band of, for example, 3.73 MHz ± 75 kHz. p »^ ^as is frequency-modulated by the time-sequentially multiplexed signal described above, to a mixer 43. On the other hand, a frequency modulator 32 in a band of, for example, 3.43 MHz ± 75 kHz supplies a frequency-modulated signal f. Audio signal is frequency modulated to the mixer 43.

The NTSC color video signal from the color video signal source 26 is applied to comb filters 34 and 35. That Comb filter 34 comb filtering in a band above 2 MHz including a Carrier chrominance signal, which is converted to a lower frequency band of 2.56 MHz, in band-share to multiplex! The carrier chrominance signal converted to the lower frequency band is described later. A luminance signal that is separated in the comb filter 34 arrives at a Low-pass filter 36. The low-pass filter 36 band-limits the upper cutoff frequency of the luminance signal to about 3 MHz. The comb filter 35 delivers

a carrier chrominance signal in a band of 3 _f 58 MHz ± 5 kHz, and this signal passes to a Chrominanzhilfsträgergenerator 38 and to a Chrominanzsignalumsetzerschaltung 39. The Chrominanzhilfsträgergenerator 38 operates in a per se known manner _s in order of a sync signal gate pulse and a color burst signal in the carrier chrominance generate a continuous oscillation at a frequency equal to the chrominance subcarrier frequency fg _C (3.579545 MHz in the case of the NTSC color video signal) of the carrier chrominance signal. The synchronizing signal gate pulse is formed from the synchronizing signal which is separated in the synchronizing signal separating circuit 37 from the luminance signal appearing at the output of the low-pass filter 36. The chrominance signal converter circuit 39 multiplies the frequency of the continuous oscillation of the chrominance subcarrier generator 38 by 12/7 and subjects this multiplied continuous oscillation and the supplied carrier chrominance signal to beat conversion. As a result, a carrier chrominance signal occurs at the output of the chrominance signal converter circuit 39, which is converted into a low frequency band and has a chrominance auxiliary carrier frequency of 5fg _C / 7.

The carrier chrominance signal converted to the low frequency band is with the band-limited luminance signal that occurs at the output of the low-pass filter 36, mixed in a mixer 40. The multiplexed that occurs at the output of the mixer 40 is band-proportionally multiplexed The signal is subjected to a pre-emphasis in a pre-emphasis circuit 41, and the pre-emphasis signal then arrives at mixer 43.

The continuous oscillation occurring at the output of the chrominance subcarrier generator 38 with the

The chrominance subcarrier _{frequency f gc is applied to a reference signal generator circuit 46} together with the synchronizing signal separated in the synchronizing signal separating circuit 37. The reference signal generating circuit 46 generates a burst pulse-like first reference signal fp1 with a frequency of for / 5 during four fields, which corresponds to one track turn on an original recording disk, and generates a pulse-like second reference signal fp2 with a frequency of ^f _sc / 7 during subsequent four fields. The reference signal generating circuit 46 repeats an operation in which the first and second reference signals fp1 and fp2 appear alternately at an output terminal 48. The reference signal generator circuit 46 also generates a third reference signal with a frequency of, for example, f _sc / i3, to be precise at a point in time at which the switchover between the first and second reference signals fp1 and fp2 occurs. The reference signal generator circuit 46 generates the third reference signal fp3 for a duration of approximately 3H and supplies this third reference signal fp3 to a mixer 45. FIG. Fig. 10 (A) shows the vertical sync signal and the horizontal sync signal in the range of the vertical blanking period separated from the video signal to be recorded. From FIG. It can be seen from Fig. 10 (C) that the third reference signal fp3 is generated substantially in accordance with the occurrence of the vertical synchronizing signal. The first and second reference signals fp1 and fp2 are generated with a period of 1H as shown in FIG. 10 (D).

FIG. 10 (B) shows that a chapter _{address signal A c} , a time address signal A _1, and a track number _{address signal (page number address signal) A n} are outputted during 1H

Period in scan line numbers 17H, 18H and 20H are transmitted. In the case of an even field, the chapter address signal Ap, the time address signal A ™ n and the track number address signal A _{n are} transmitted in the scan line numbers 280H, 281H and 283H. These Ädreßeignale arrive via a in FIG. Input terminal 42 shown in Figure 8 to mixer 43. Chapter address signal A ^ indicates the recording position of the signal on the disc in the sequence of recorded programs. The time address signal A ^ indicates the total time. The track number address signal A _n indicates the always of the tracks by using the recorded position of the third reference signal fp3 as a starting point and by counting one track turn when the disk has made one revolution. The above address signals Aq, Arp and A _n each consist of 29 bits.

FIG. 11 shows an example of a signal format of the track number address signal A _n . According to FIG. 11, a synchronizing signal 50 is arranged with a fixed predetermined pattern and with a value of, for example, ^w C ⁿ in hexadecimal notation in the first to fourth bits, which are denoted together with SYNC. A line discrimination code 51 is located in 2 bits following the sync signal 50, and the line discrimination code 51 is followed by an audio discrimination code 52 in the next 2 bits. The line discrimination code 51 is used to discriminate the scanning line number used to transmit the track number address signal, and it takes a value of "01", for example. The audio discrimination code 52 is used to discriminate the kind of the recorded audio signal (e.g. stereo, monaural and bilingual ). A code that the

Track number is in the next 20 bits, ranging from the 9th to the 28th bit. A 1-bit parity bit 54 then follows as the last bit. The code which specifies the track number consists of five code sections 53a to 53e, each with 4 bits. The 4-bit code divisions 53a to 53e shown in FIG. 10 indicate the value of tens of thousands units, thousands units, hundreds units, tens units and ones units of the track number in hexadecimal notation. In the case of a disk on which recording can be made up to a maximum of 60 minutes on one side of the disk, the result is a track number of up to 45,000. The maximum value of the 4-bit code division 53a is therefore ⁿ 5 "in hexadecimal notation in this Case, and "5" in hexadecimal notation means "0101" in binary notation. The most significant bit of the 4-bit code section 53a, ie the ninth bit of the track number address signal, always takes the value "0." This most significant bit is shown in FIG indicated by hatching in the 4-bit code section 53a.

In the embodiment under consideration, the ninth bit of the track number address signal is used to discriminate or determine the presence of the control program signal, ie to determine whether the control program signal is being recorded. If the ninth bit of the track number ^{address signal is "1 n} , it is assumed that the control program signal is recorded for a period of 240H starting from scan line number 21H (284H). The signals supplied to the mixer 43 are multiplexed and that at the output of the mixer 43 appearing multiplex signal is in a in FIG.

frequency modulator shown frequency modulated. From the output of the frequency modulator 44, the frequency mo-

modulated signal to mixer 45. Hence occurs an output terminal 47 has a mixed signal which is the frequency-modulated signal from the output of the Frequency modulator 44 and the third reference signal fp3 from the reference signal generator circuit 46 contains.

FIG. 12 shows an example of a frequency spectrum of the signal to be recorded. A band I represents a carrier deviation frequency band of 2.3 MHz of the frequency-modulated luminance signal. A frequency f indicates a frequency of 6.1 MHz, which corresponds to the synchronous peak. A frequency fu represents a frequency of 6.6 MHz, which corresponds to the black level lift-off. A frequency f represents a frequency of 7 ^ 9 MHz, which corresponds to the white peak. Bands Hy and II _L represent the upper and lower sidebands of the frequency-modulated luminance signal. Bands Uly and III _L represent the upper and lower sidebands of signals obtained by frequency modulating the frequency-modulated signals f ... and f .p. Carriers of the frequency-modulated signals f. ^ And f _A2 »^ ^ie frequencies of 3.43 MHz and 3.73 MHz are shown in FIG. 12 labeled IV. The control program signal, which has been subjected to a two-phase marker modulation, is, as already mentioned, time-sequentially multiplexed with the second-channel audio signal, and this multiplexed signal is used to frequency-modulate the carrier at the frequency of 3.73 MHz the frequency-modulated signal f. ^to obtain. The frequency-modulated signal f _A2 frequency-modulates a predetermined carrier. The control program signal is recorded on the original recording disk with a signal format in which the control program signal complies with the above-described time-sequential multiplexing process, the frequency modulation

tion process and the further frequency modulation process has been subjected.

That shown in FIG. Band V shown in FIG. 12 represents the band of the carrier chrominance signal converted to the low frequency band and appearing at the output of the chrominance signal conversion circuit 39. If the carrier chrominance signal converted into the low frequency band is frequency modulated in the frequency modulator 44, first sidebands VIy and VI _L and second sidebands VIIy and VII _{L are obtained} . 12, the frequency spectrum indicated by a solid line represents the frequency spectrum of the signal recorded on the original recording disk.

The reference signals fp1, fp2 and fp3 are arranged in an unused band below the band VII ₇ . The tape occupied by the reference signals fp1 to fp3 and the tape occupied by the information signal are separated from each other, since these signals have to be picked up and reproduced by the same pickup playback element.

The information signal applied to the signal shown in FIG. 8 output terminal 47 occurs, and the reference signals fp1 and fp2, which appear at the output terminal 48, are in a known cutting device, which makes use of a laser beam is converted into a first and second modulated laser beam. These first and second laser beams are focused simultaneously on a photosensitive medium, the covers the surface of the original recording disk in a state where the first and the second laser beams are separated from each other by about half the track spacing or half the track pitch. the

The original or original recording disk is then subjected to @ in®m known developing process, and then a known plate-making process is carried out. As a result, a plate 55 is obtained which has a function of an electrode which does not have guide grooves for guiding the pick-up reproducing member and which has a trace pattern as shown in Figs. 1-3.

Bas occurring at the output terminal 47 information signal contains the video signal, the audio signal, the address signal and the control program signal. This Laforaationssignal is on a spiral track T on the plate 55 shown in FIG. 13 as the frequency A modulated signal recorded. The recorded information signal contains a series of intermittent ones Wells or pits that correspond to the information content of the information signal. In the single continuous spiral track T shown in FIG. 13 is indicated by a solid line, are the individual track turns on the plate 55 with ti, t2, t3s. o «. Each turn of the track consists of pits of the information signal formed in a flat surface of the disk. A guide groove for guiding the acceptance playback element is not existing ones with respect to a track winding are troughs or Pits of the first reference signal fp1 and troughs or pits of the second reference signal fp2 in the longitudinal direction of the track on one or the other track side for each horizontal scanning period 1H at positions formed which correspond to the horizontal blanking period.

In the space in the middle between the center lines of neighboring ones However, track windings are only the pits of one reference signal fp1 or of the other reference signal fp2. This means that regarding

of a track turn, the sides on which the reference signals fp1 and fp2 are recorded alternate per track turn. The tracks from the first reference signal fp1 are shown by broken lines, whereas the tracks from the second reference signal fp2 are shown by dot-dash lines. The places or positions at which the vertical sync signal is recorded in each field are _{denoted by V 1} , V ₂ , V ^, ... The third reference signal fp3 is for a duration of 3H, as already described, recorded at the beginning of the tracks ti, t2, t3, ..., ie at the positions V ^, Vc, Vg, ..., that is, at points , in which the recorded reference signals fp1 and fp2 alternate with each other-

In the example under consideration, one revolution of the plate 55 corresponds to a duration of four fields of the video signal. The vertical blanking period is on the tracks ti, t2, t3, ... in areas that are labeled a, b, c and d.

The control program recorded according to the invention is basically written in direct instructions. The data length of the original information data in the control program is normally in Area of 6 bytes, and the control program is transferred to the control program signal, which has a number of bytes which is in the range of 15 bytes as shown in FIG. 7 is shown. This control signal is recorded for a period of 240H. The second channel audio signal however, it is recorded in the following turns of the track. Because the control program is sequential is recorded in each of the tracks in a distributed manner, the control program in the

personal computer or the like used at the time of playback is loaded every time the disc 55 is played. As a result, the memory capacity of the personal computer used for personal use can be small because there is no need to store the control program once the instructions (commands) control program have been executed

As explained above, the control program is written in a predetermined intermediate language. As will be explained, it is necessary to use a disk language interpreter or a disk language interpreting program to have so that the intermediate language can be interpreted into a predetermined language, which the external device, for example the computer intended for personal use, understands. The interaction or the dialogue between the disc player and the external device is made possible by the "usage In other words, it is necessary to prepare a number of control programs according to the number of kinds of disks, however by preparing or providing a number of kinds of disk language interpreters according to the Total number of types of languages recorded in the in Considered external devices are used, it is sufficient to have only one type of control program for to offer some kind of plate. Therefore, compared with the conventional case described above, the The load on the software development is reduced to a great extent.

Furthermore, the control program is recorded on the same track as the video signal or the like, using the transmission path

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of the second-channel audio signal. Regarding the first-channel audio signal and the video signal, it is therefore possible to reserve a storage capacity that corresponds to is the same as the storage capacity of the conventional disk on which no control program is recorded is. This means that by the measures according to the invention, the recording capacity of the disk with respect to of the first-channel audio signal and the video signal is not limited.

Next, the disk reproducing apparatus which uses the recorded signals from the disk decreases and reproduces, the recording of which was carried out with the arrangement according to the invention.

In the case of the FIG. 14, local commands are in both directions between a Video disc player 56 and an interface box 57 transferred. The signals coming from the disk in Video disc player 56 are removed and played back to a video / audio processor 58, which is used to obtain special effects. Local commands are also used in both Directions between the interface box 57 and the video / audio processor 58 as well as between the Interface box 57 and a character and audio generator 59 transmitted. In the present description becomes an arrangement which is based on the video disc player 56, the interface box 57, the video / Audio processor 58 and the character and audio generator 59, referred to as disk player 60. It is not essential that the video / audio processor 58 and the character and audio generator 59 are provided. It is also assumed that the interface box 57 is a standard interface that can transmit bidirectionally, with example

»34-

An RS232C interface can be used can ο

In the arrangement according to FIG. 14, various commands, which are based on the control program abgenoffimeaeH and reproduced by the disk, are transmitted in both directions between the interface box 57 within the disk reproducing device 60 and an external device 61 that can make a decision and distinguish between it has a discrimination function. When the external device 61 may be a device such as an imaginary for personal use computer or a game machine 63 * Further, video and audio signals that are generated by the external device 61 via the Yideo / audio Rrozessor 58 to a a television receiver "64 supplied the video and audio signals, which are generated by BiId- and Tonaufnahae by a television camera 65 ,, also pass via the video audio base processor 58 to the television receiver 64th

The yideo disc player 56 includes a known tape pick-up device, tracking servo circuit, and the like. A brief description of these elements that make up the video disk player 56 follows. According to FIG ₉ 15 the plate 55 is placed on a turntable or turntable 66 and there with a clamping device 6? clamped «The disk 55 rotates together with the turntable 66 in a clockwise direction, namely at a predetermined speed. A signal pick-up device 68 contains an insert 71, a coaxial resonator 72 etc. and is mounted on a slide 73 JDsr insert 71 contains a support arm 70 "at one point of which a pick-up pin 69 is provided o The slide 73 has two rollers 74a

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and 74b on one side and a roller 75 on its other side. The rollers 74a each have a groove. A protrusion 76 on the carriage 73 is attached to a belt 78 that extends over pulleys 77a and 77b is running. A feed motor 79 drives the pulley 79, via a gear or Gear mechanism 80. When the feed motor 79 rotates, the rollers 74a and 74b run over a rail 82a, which is mounted on a chassis 81, whereas the roller 75 runs over a rail 82b. Consequently the carriage 73 can be moved in the directions of the arrows Y1 and Y2.

In the following, with reference to FIG. 16 shows a signal demodulating arrangement of the video disk player 56 will be explained. In FIG. 16 are those parts which parts of FIG. 15 correspond with the same reference numerals. According to FIG. 16 is the plate 55 on a turntable, the is rotationally driven by a motor, not shown. The plate 55 therefore performs a synchronous rotary movement at a high speed together with the turntable in the direction of a drawn Arrow Υ. As the plate 55 rotates, it slides the pick-up pin 69 over the surface of the plate 55 and scans it.

The pick-up pin 55 is attached to one end of the support arm or cantilever 70, and is a permanent magnet 84 is attached to the foot at the other end of the support arm 70. The attachment point of the permanent magnet 84 with the support arm 70 is surrounded by a dither compensation coil 86 and a tracking coil 85 on the video disc player 56 are attached. Right and left coil parts of the dither compensation coil 86 are

with the same phase wound® from these coil parts therefore becomes either an attractive force or a repulsive force on the permanent magnet at the same time 84 depending on the polarity of a jitter compensation signal applied to an input terminal 87 is fed. The boom or bracket 70 therefore moves in the longitudinal direction as a result Along the tangent, look at the track of plate 55, compensating for any possible tremor becomes; which by eccentricity, surface irregularity or some other incompatibility of disk 55 can be caused * The tracking reel 85 generates a magnetic field along a direction perpendicular to the magnetic field of the permanent magnet 84 runs. This causes the support arm 70, depending on the polarity of a tracking error signal, which supplies a tracking circuit 100, is indicated in one of the two by an arrow Z. (Cross track direction) to move specified directions, by an amount equal to the amount of the tracking error signal depends.

An acceptance circuit 88 contains a resonance circuit, the resonance frequency of which is dependent from the change in electrostatic capacity between an electrode of the pickup pin 69 and the plate 55 due to the intermittent troughs or Pits changes. The acceptance circuit also contains a circuit for applying a constant frequency signal to the resonance circuit, a circuit for detecting the amplitude of the high frequency signal that the resonance circuit provides, and a circuit for preamplifying the detected high-frequency signal (Playback signal). That at the output of the acceptance circuit occurring high-frequency playback signal then arrives

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to a demodulator 89 which is the main information signal (in this case the video signal and the audio signal) of the Main track demodulated. The demodulated signal appears at an output terminal 93. On the other hand, that will high frequency playback signal from the pickup circuit 88, bandpass filters 91 and 92 and a detector 90 supplied. The band-pass filters 91 and 92 have such characteristics that they only the frequencies select and amplify the reference signals fp1 and fp2 in terms of frequency. The ones at the outputs of the bandpass filter 91 and 92 occurring reference signals fp1 and fp2 then reach the first and second input terminal of a gate circuit 94, respectively. The detector 90 performs a frequency selection with respect to the reference signal fp3 and generates a reference signal fp3 corresponding envelope detection signal. The detector generates a detection or acquisition signal by self-generation, which is in phase with the envelope detection signal of the reference signal fp3 that has occurred so far is in the event that the reference signal fp3 is not due to a dropout or the like there is more. This detection signal is fed to a switching pulse generator 95.

The gate circuit 9h is switched over by a switching signal generated by the switching pulse generator 95. For example, if the switching signal has a high signal value, the output signals of the bandpass filter 91 and 92 reach the input connection of the detector 97 and the input connection of the detector 98, respectively, independently of one another supplied from each other to the input terminal of the detector 98 and the input terminal of the detector 97, respectively.

The polarity of the switching signal of the switching pulse generator 95 is reversed when a detection signal occurs from detector 90 or a Kiek pulse (excluding a kick pulse supplied during playback of the reference signal fp3) from a Kick pulse generator 96 to. That way delivers the detector 97 © in envelope detection signal from the reference signal ,, which comes from a track on the outside of the track to be played back. In appropriate Way, the detector provides an envelope detection signal of the reference signal from a track on the The inside of the track to be reproduced comes from “This Envelope detection signals from detectors 97 and 98 become fed to a differential amplifier 99, which in a downstream stage of the described arrangement is provided. The differential amplifier 99 therefore provides a tracking error signal at its output with a polarity that corresponds to the direction of the tracking error, and with an amount ρ which corresponds to the amount of the tracking error. This tracking error signal arrives at the tracking reel 85 via a tracking circuit 100, in which converts the tracking error signal into a predetermined Drive voltage is converted to control the tracking reel 85 »As a result, the pick-up pin 69 is moved in the radial direction of the plate 55 in terms of direction and amount so that the tracking error becomes zero o That is why the acceptance pin 69 runs precisely following the spiral track T on disk 55.

The main information signal demodulated in the demodulator 89 is applied to a color video signal reproducing system known per se (not shown) as well as to © in © ® known audio signal reproduction system (not shown) via the output port In these systems, the main demodulated information is

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tion signal is converted into a color video signal of a standard television system and into an audio signal. That color video signal obtained in this way as well as the audio signal obtained in this way are then a surveillance television receiver (not shown). In addition, the output signal of the Demodulator 89 to a microprocessor 101.

An explanation will now be given relating to each part of a display device which refers to the control program signal in the disc player reproduces, and which relates to any part of a display device which the control program signal plays back in the external device in accordance with those involved in playback operations Operations. In the event that the external device 61 is the computer intended for personal use 62 which, for example, corresponds to that shown in FIG. 18, the disk language interpreter or the disk language interpreter program stored in an external storage device such as a Cassette tape or a floppy disk is pre-loaded into the computer 62. This record language interpreter program is a routine for interpreting the instructions of what is reproduced from the disk 55 Control program in instructions (commands) in a machine language that is understood by the computer 62. Regardless of the type of disk 55, it suffices to have some type of disk language interpreting program with respect to one type of computer prepare or provide. This means that a control program which is of some kind (information content) from disk 55 is removed and reproduced in the computer 62 intended for personal use by providing only one type of external storage device

can be decoded, in which a disk language interpretation program is pre-stored _s which is in accordance with the computer 62. Furthermore, this means that the control program recorded on the disk 55 can be written in a predetermined type of intermediate language. In contrast to a conventional case, it is not necessary to write the control program in different languages which are then used in different models of personal computers that come from different manufacturers. The disk language interpreter is written in machine language ρ in such a way that the processing can be completed within a short period of time despite the limited processing speed of the computer 62, which is intended for personal use «

When the user enters the disk 55 into the video disk player 56 according to FIG. 17, the video disk player 56 is automatically put into the playback mode. 17 arrives at a signal demodulator 110. The signal demodulator 110 has a structure ^ which the demodulator 89 of FIG. 16 includes. The tracking error signal is fed to a tracking servo arrangement 111 which controls the tracking reel 85 and the like according to FIG. 16 contains. The reproduced video signal and the reproduced audio signal, both of which appear at the output connection 93, reach a television monitor 113 and a loudspeaker 114s, although under the control of an output control device 112o. The modulated signal sent by the control pro-

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gram signal has been modulated and ^ etzt the control program demodulator 115, as well as the second channel audio signal which is supplied to the output control device 112 is applied, are optionally output by a circuit in the signal demodulator 110. These Circuitry of the signal demodulator 110 is shown in FIG. 19 shown.

The signal appearing at the output terminal 93 becomes a signal shown in FIG. 19 input terminal shown 150 supplied. From this input terminal 150, the signal arrives at a bandpass filter 151, in which the frequency-modulated Signal f.p is frequency selected. That The output of the band-pass filter 151 is made in a detection circuit 152 of frequency modulation (FM) detection subjected. The modulated signal, which is a two-phase marker modulation, appears at the output of the detection circuit 152 has been subjected to by the control program signal, or the second channel audio signal. This output of the detection circuit 152 is passed through a de-emphasis circuit 153 and comes then to a connection 154a of a circuit 154 and to a connection 155b of a circuit 155.

The address signals Ap, Am and A «, which are in the vertical blanking period of the video signal within that appearing at the output terminal 93 Signals are multiplexed are separated and fed through an input terminal 156 to a 29-bit shift register 157 supplied. The reproduced vertical sync signal is applied to an input terminal 158 placed. This reproduced vertical synchronizing signal clears the shift register 157 and takes in at the same time with its leading edge a presetting at the input PR of a D flip-flop 159 (flip-flop of the delay type)

before ₀ The output Q of the flip-flop 159 therefore assumes a high value, and this high value at the Q output opens the gate of a NAND circuit 16O ₀ Clock signal components in the reproduced address signal present at an input connection 161 reach the shift register 157 via the NAND circuit 160 as a shift pulse. Thus, the reproduced address signal present at the input terminal 156 is sequentially displayed in the sequence shown in FIG. 19 shifted shift register shown to the left.

The first, second and sixth bits of the shift register 157 are fed directly to a NAND circuit 165, the third, fourth and fifth bits of the shift register 157 pass through inverters 162, 163 and 164 to the NAND circuit 165. The synchronizing signals in each of the Address signals A ", A ™ and Α" take on a common value "C" in hexadecimal notation. The 2-bit line discrimination codes which follow the respective synchronizing signal differ for each of the address signals Ap, A ™ and A _n . The line discrimination or line discrimination code 51 of the address signal A ^ is, for example, "01". The NAND circuit 165 therefore only supplies a detection signal with a low value when all the bits of the 29-bit address signal A ^ have been loaded into the shift register 157. This detection signal from the NAND circuit 165 reaches a clock _{input terminal C K of} the D flip-flop 159 and to the clock input terminal C ^ of another D flip-flop 166. The data input terminal D of the flip-flop 159 is grounded or connected to ground. In contrast, the ninth bit of the shift register 157 is fed to the data input terminal D of the flip-flop 166. Of the

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The Q output of the flip-flop 159 takes a low value from a timing when the above detection signal is provided from the NAND circuit 165. The low value appearing at the Q output of the flip-flop 159 reaches the NAND circuit 160 and closes the gate there, so that the further supply of the shift pulse to the shift register 157 is prevented. At the same time, the data value occurs in the ninth bit of the reproduced address signal A _n at the Q output of the flip-flop 166. This Q output of the flip-flop 166 is fed to the circuits 154 and 155 as a switching signal.

As previously in connection with FIG. 11, the ninth bit of the address signal A _{n contains} the distinguishing or discriminating signal which indicates the presence of the control program signal. When the ninth bit of the address signal A _n is "1 ⁿ ", this indicates that a recorded control program signal is present. When the Q output of the flip-flop 166 goes low ("0"), the moving contacts of the circuits are open 154 and 155 connected to terminals 154a and 155a, on the other hand, when the Q output of flip-flop 166 is high ( ^W 1 ^W ), the moving contacts of circuits 154 and 155 are connected to terminals 154b and 155b If the reproduced second-channel audio signal appears at the output of the deemphasis circuit 153, this reproduced audio signal is passed on via the switch or circuit 154 to a noise suppression circuit 167, which carries out signal processing in a manner known per se in order to reduce noise or noise interference. The output of the noise reduction circuit 167 is applied to an output terminal 168. When the modulated signal received from the S expensive-

program signal has been modulated at the output of the Beemphasis circuit 153 appears, this is reproduced modulated signal is fed to an output terminal 169 via the switch or Sehaltkreis 155.

FIG ₀ 17 it can be seen that the reproduced modulated signal at the output terminal 169 occurs _t 115 is supplied to the Steuerprogrammdemodulator in the interface box 57, together with the reproduced video signal that provides the signal demodulator 110th The control program demodulator 115 has a structure as shown in FIG. 2OA is shown. The structure of this control program demodulator 115 will be explained below. The reproduced modulated signal is fed to a signal shown in FIG. 20A is applied to the input terminal 170 shown and passes from there to a decoder 171 which demodulates the reproduced modulated signal into the reproduced control program signal. The reproduced vertical synchronous signal and the reproduced horizontal synchronous signal are also supplied to the decoder 171. These reproduced vertical and horizontal synchronous signals are separated in a synchronous signal separating circuit 173 from the reproduced composite color video signal, which is fed to the separating circuit 173 via an input terminal 172.

The decoder 171 can be a microprocessor or a digital circuit. If the decoder 171 is formed by a microprocessor, the operation of the Decoder 171 to the flow chart of FIG. 21 referenced. It is then determined in a step S1

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whether the vertical sync signal is present. If there is a vertical sync signal, variable A, B and C are cleared and the horizontal sync signal is counted at the same time. This happens to one Step S2. At a step S3, the scanning line number 21H (284H) is detected. The scan line number 21H (284h) is detected because the control program signal, which consists of 15 bytes in total, with The beginning of scan line number 21H (284H) is recorded is as it has already been described.

Next, at a step S4, an incoming horizontal sync signal is detected. At a step S5, the variable C = B and the variable B = A are set, and also the variable A is set to the value ( ⁿ 0 ⁿ or "1") of the data in the scanning line number 21H (284H). In a step S6 it is again determined whether an incoming horizontal synchronization signal is present. If an incoming horizontal synchronizing signal is present again, the variable C = B and the variable B = A and the variable A are set to the value of the data value in the scanning line number 22H (285H) in a step S7. The data in the reproduced control program signal represent a square wave which can be obtained by waveforming the signal shown in FIG. 9 (D) shown signal. The logic values "0" or "1 ^{W of} the data in the reproduced control program signal are in phase with the reproduced horizontal sync signal. Three continuous scan outputs obtained in accordance with the phase of the horizontal sync signal do not take the same value with the horizontal scanning period have the same value, the logical value ^w 0 ⁿ is displayed

ο · "♦ O 3 I G S -46-

these two continuous sampling outputs are different Have values, the logical value "1" displayed. This clearly follows from the representations of Bach FIG. 9 (A) and 9 (D).

At a step S8, the decoder 171 determines whether the values of the variables A, B and C are the same. If the variables A, B and C have the same value ₉ , a decision is made in a step S9 that there is an error. On the other hand, if the values of the variables A, B and C do not have the same value, it is examined in a step S10 whether the values of the variables A and B agree with each other. C If the values of the variables A and B agree with each other, a step S11 decided that the data is "0". If the values of the variables A and B do not coincide with each other, it is determined in a step S12 that the data value is "1". A process similar to the process described above is then repeated until it is determined at a step S13 that the end of a block is reached.

The decoder 171 which performs the above-described operation can also be provided by a device shown in FIG. 22nd illustrated digital circuit can be realized. One in FIG. Input port 190 shown in FIG a modulated signal is supplied which corresponds to the control program signal reproduced from the disk 55 has been subjected to self-clock modulation. This modulated signal is used in a comparator 191 subjected to waveform shaping and then applied to the data input terminal D of a D flip-flop 192. The Flip-flop 192 is connected in series with further flip-flops 193 and 194, so that a three-stage arrangement

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arises. The reproduced horizontal synchronizing signal is applied to an input terminal 195 and is counted in a counter 197. The counter 197 is reset at its reset input R when the reproduced vertical synchronization signal occurs. The reproduced vertical sync signal is applied to an input terminal 196. The counter 197 provides an output at the scanning line number 21H (284H). This output signal of the counter 197 sets a flip-flop 198 and opens the gate of an AND circuit 199. The flip-flop 198 is also reset when the vertical synchronizing signal occurs. The reproduced horizontal synchronizing signal thus reaches the clock connections CK of the flip-flops 192 to 194 and acts there as a clock pulse from the time when the scanning line number 21H (284H) occurs until the time when the vertical synchronizing signal occurs. If the sampling outputs assume the same value for a time of 3H, an exclusive OR circuit 200 in conjunction with a NOR circuit 202 at an output terminal 203 generates an error signal. If the sampling outputs assume the same value during a time 2H, an exclusive-OR circuit 201 generates a signal at an output terminal 204 which indicates that the data value is "0". If the sampling outputs have different values during a time 2H, a signal appears at the output terminal 204 which indicates ^{a data value of Β} 1 ^Π.

It is now back to FIG. 2OA referred to. The reproduced item occurring at the output of the decoder 171 Control program signal (data) is an NRZ signal (recording signal or return to the basic state). This NRZ signal is successively fed to eight 14-bit shift registers 174-1 to 174-8,

which are connected in series. The reproduced vertical sync signal that the sync separation circuit 173, on the other hand, appears at an output terminal 175. The reproduced Horizontal sync signal, which is also provided by the sync signal separation circuit 173, is frequency divided in a frequency divider 176 in a ratio of 1/2. The frequency-divided output signal of the frequency divider 176 is used as a shift clock signal the shift registers 174-1 to 174-8 are supplied in parallel. In addition, the output signal of the Frequency divider 176 to an 8-bit shift register 177. The shift registers 174-1 to 174-8 form one A circuit part which performs such an operation that the functions described in connection with FIG. 6A and 6B Reordering the data is removed by rearranging the data and returning the data to its original order to be brought. 1-bit data BO to B7 appear at the outputs of the shift registers 174-1 to 174-8 and are parallel to an error correction ROM table 182 supplied. The data value appearing at the output of the shift register 174-8, i.e. that in the last one Stage of the eight series-connected shift registers 174-1 to 174-8 occurring data value also applied to the 8-bit shift register 177, which subjects the data to a series-parallel conversion. The parallel output signals of the shift register 177 reach a comparator 179. The Comparator 179 compares the data in the shift register 177 with a predetermined frame code pattern which is pre-stored in a memory 180. If the two 8-bit signals supplied to the comparator 179 coincide with one another, it is determined that the one shown in FIG. 7 has been reproduced, and the comparator 179 provides a frame code

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Detection signal. This frame code detection signal arrives through an output terminal 181 to a circuit shown in FIG. Memory address generator 185 shown in FIG. 2OB.

The error correction ROM table 182 is used to in a manner known per se using the check bits b5 to b8 according to FIG. 4 mistakes in ye to capture and correct the 8-bit data supplied. Error-corrected 4-bit information data appear in parallel bit representation at output connections 183-1 to 183-4. When the error correction cannot be executed, error detection data appears on a terminal 184.

The output data of the error correction ROM table 182 arrive at a circuit shown in FIG. 17 shown buffer memory and data selector 116 as output data of the control program demodulator 115. FIG. 20B shows, in the form of a systematic block diagram, the structure of the buffer memory and data selector 116 with further details. In FIG. 20B are those parts which parts according to FIG. 17 and 20A are given the same reference numerals. The data pending at the connections 183-1 to 183-4 and 184 arrive at a signal shown in FIG. Buffer memory 116a shown in 2OB. _{On the other hand, the reproduced vertical synchronizing signal, the signal obtained by frequency-dividing the horizontal scanning frequency f H} by a ratio of 1/2 and the frame code detection signal are supplied to the memory address generator 185 via terminals 175 »178 and 181, and a transmission request signal is also supplied via a terminal 123. When the frame code detection signal is supplied to the memory address signal generator 185 through the terminal 181, the 4-bit data at the terminals 183-1 to 183-4 are valid. In this case

the memory address signal generator 185 supplies an address signal indicating an assigned address in the buffer memory 116a so that the 4-bit data can be stored in the assigned address of the buffer memory 116a. The value of the address signal changes every H / 2. A status applied to a port 124 as determined by a disk player operation controller 122 of the type shown in FIG. 17 video disk player 56 shown, and reproduced address data (disk address) of the address signals A _T , A _n and A _c , which come from the signal demodulator 110 and are applied to a terminal 126, are temporarily stored in the buffer memory 116a so that the status and the disk address with a predetermined transmission speed can be transmitted. The status contains, for example, 25 bits and gives an indication of the content of the recorded information signal (i.e. the television system of the video signal, the type of audio signal and the like), the disc side to be played, the display type, the position of the pickup pin, the playback type and like that.

The control program signal data, status and the disk address all stored in the buffer memory 116a become from the buffer memory 116a read out and fed to a data selector 116b. The data selector 116b routes in accordance with a transfer request signal from a command analyzer 121, to be described, selectively further one type of data. The one from the data selector 116b selectively forwarded data reach an RS232C driver 117, which is shown in FIG. 17 and 20B is. The output signal of the RS232C driver 117 becomes an input terminal through an output terminal 118

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129 of the in FIG. 18 intended for personal use computer 62 supplied. The command analyzer 121 generates a transfer request and delivers this transfer request to the data selector 116b, so that the control program that is in the buffer memory 116a is stored, successively from the data selector 116b to the computer 62, if not the command analyzer 121 is supplied with a command prohibiting the above-described operation.

The RS232C interface is a well-known standard interface, according to EIA (U.S. Electronics Industry Association) and CCITT (International Consultative Committee for Telephone and Telegraph). In the embodiment under consideration, form the RS232C driver 117 and an RS232C receiver 120 an RS232C interface circuit 205 shown in FIG. 23 is shown. Of the 25 pins on this interface circuit 205 occur the following signals at the second, third, fourth, fifth, sixth, seventh, eighth and

twentieth pen starting with (7 \ (JM, (4), (5 \ (6), f7

. The wiede

Θ / ~ - \ V ^ y v_y v_y \ Γ / v_y ν

and (2CM are shown. The data shown

and address information relating to the internal state of the video disk player 56 appear on the second pin and are supplied to the external device 61. A control command related to the video disk player 56 is sent from the external device 61 to the third pin placed. The signals on the fourth, fifth, sixth, seventh, eighth and twentieth Are originally used to control the modem or determine the status of the Modems. In the exemplary embodiment under consideration, however, the signals on the fourth and fifth pins are used for controlling the transfer operation of the video disk player 56 with respect to the external device 61. Takes the signal on the fourth pin has positive polarity,

it means that the video disk player 56 has a request with a transfer from the video disk player 56 to the external device 61. When the external device 61 is in a state which enables it with respect to the video disc player 56 to receive the transmitted information, the fifth pin has a positive polarity signal. If both of these conditions are met is transmitted from the video disk player 56 to the external using the second pin Device 61 instead.

The signals on the sixth, eighth and twentieth pins are used to control the receiving operation of the Video disc player 56. When the video disc player is in a receiving state, appears on twentieth pin a signal with positive polarity. When the external device 61 is ready for transmission State, the signals on the sixth and eighth pins have positive polarity. If these two conditions are satisfied, a control command is sent from the external device 61 to the video disc player using the third pin 76 transferred. The seventh pin is grounded or connected to ground.

The one shown in FIG. 18 RS232C egg catcher shown 130 received data are assigned to a data selector 131 supplied. The receiver 130 is located in the computer 62, which can be used, for example, as an external device. The supplied to the data selector 131 Signals are also provided with the 1-byte header. The data selector 131 uses this Header to determine the type of input data, and optionally supplies the input data to a predetermined one Memory with a choice between a status memory 132, a control program memory 133 and a

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Disk address memory 134. Are the supplied Data about a status, these data reach the memory 132 and are stored there. Are the Data from a control program, the data is stored in the memory 131 and are stored there. If the data relates to a disk address, the data becomes memory 134 transmitted and stored there. In the calculator As previously described, a control program interpreter 135 is loaded 62. The one stored in memory 132 Status, the control program stored in memory 132, and the disk address stored in memory 134 are each translated into a language that is consistent with the computer 62. This language

is then interpreted in commands, for example in input commands, output commands and internal processing commands. An input / output control device 139 generates signals which, for example serve to display a desired image on a cathode ray tube 140 or to a printer 141 actuate. In addition, the input / output controller 139 receives signals from one if necessary external device, for example a floppy disk 142 and an interactive interface device CMT 143, or stores Signals in these external devices. When the incoming command is information from an input device requests, for example from a keyboard 136, a control lever 137 or a panel 138, the user operates the input device according to the requirement. Depending on such actuations by the user are the signals that are fed to the output devices, for example the cathode ray tube or the printer 141, from the input / output control device 139 controlled. Furthermore, a command that the disk player controls, generates and, through a player control command converter 144, an RS232C driver 145 and an output port 146 forwarded.

3 4 0

This command passes through an input terminal 119 to the RS232C receiver 120 in the interface box

The command received by the RS232C receiver 120 is, arrives at the command analyzer 121. The command sanalysator 121 carries out the operations described in Connection with the flow charts according to FIG. 24A, 24B, 24C and 24D are illustrated and provides an output signal to the player operation control device 122. Further, the command analyzer 121 generates the transfer request signal and carries this transmission request signal the control program demodulator 115 and the buffer memory and data selector 116.

Next, let's see how the command analyzer works 121 will be explained. At a step S20 according to FIG. 24A the presence of an incoming command is checked. If there is an incoming command, is checked successively at steps S21 to S24, whether the incoming command is a transfer request command, an output switching command, a search command or is a speed change command. There is a return to step S20 if the incoming Command does not match any of these four commands. Is it the incoming command a transmission request command is sequentially examined in steps S25 to S27 whether this transfer request command an address transfer request, is a status transfer request or a control program transfer request. Does it one of these three requirements for the transfer request command is given in one of the steps S28 to S30 generate the above-described transfer request signal that corresponds to the detected transfer request command and the command is executed. Then there is a return to step S20.

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If the incoming command is an output switch command, a signal shown in FIG. 24B Step 31 shown checks whether the to be switched Signal is the video signal. If the video signal is to be switched, it is determined in a step S32 that whether a noise lock should be activated or not. Depending on the finding at In step S32 there is a return to step S20 after a command has been executed which corresponds to the result of step S32 corresponds. On the other hand, if the signal to be switched is not a video signal, it is determined in step S31 that the signal to be switched is the audio signal. at In steps S35 to S40, it is checked whether a noise block should be effected, whether a multiplexed audio signal (A + B) of the first-channel and second-channel audio signals A and B is to be reproduced, and whether that is First-channel audio signal A and the second-channel audio signal B should be swapped with one another, and depending on these decisions, the Commands executed. Then there is a return to step S20. The commands after steps S33, S34 and S38 to S40 become related to the disc player operation control device 122 made. The disk player operation controller 122 generates an output switch request signal which corresponds to these commands and provides this output switch request signal to the output control device 122 to control this device.

If the incoming command is a search command, the command analyzer 121 checks at steps S41 to S43 according to FIG. 24C, whether this search command is a chapter search, a time search or a track search regards. If the search command does not match any of the three

Search offered coincides _s a return is made to step S20. On the other hand, if the search command is found to match one of the three search options, the disc player operation control device 122 is controlled in steps S44 to S46 so that the corresponding search operation is carried out. Then there is again a return to step S20. The turntable operation controller 122 generates a servo control request signal and supplies this servo control request signal to the tracking servo assembly 111. The servo control request signal controls the rotation of the feed motor 179 so that the motor 19 rotates in a direction at a speed which is the difference between the reproduced address signal of the commanded type and that set destination address signal corresponds. It also turns on or off the tracking control operation and the like. The disc player operation control device 122 extracts only the address signal A _c from the output signal of the signal demodulator 110 in the case of the chapter search, only the address signal Am in the case of the time search, and only the address signal A «in the case of the track search.

If the incoming command is a speed change command, the command analyzer checks at a step s51, whether the feed rate of the pickup device 68 is zero (i.e., whether the video disc player 56 is still playback executes). If the turntable 56 is in the still picture playback mode, a corresponding command signal is sent to the control device in a step S54 122 is given, and there is then a return to step S20. If the video disc player 56 is not running Still picture playback, it is determined in the course of steps S52 to S60 whether the feed or movement

Ο <4 U J i D

direction of the signal pickup 68 in the forward direction (for example, toward the Inner edge of the plate) or in the backward direction (e.g. towards the outer edge of the plate) takes place, and it then follows a direction command according to the determined result, and the speed of movement of the signal pick-up device 68 is also determined and accordingly a speed command issued to the result. The commands in steps S54 to S56, S59, S60 and the like are done with respect to the control device 122. The controller 122 is controlled by the microprocessor 101 according to FIG. 16 or the like is formed.

The control program signal recorded on the disk 55 is reproduced, and the commands of the reproduced control program signal are to the Personal computer intended for personal use and then forwarded from the computer to the video disc player 56. It takes approximately seven fields for the video disk player 56 to perform operations actually executes based on the commands sent to it. For this reason, the control program signal recorded at a location or position on the disk 55 a predetermined distance that position on the plate 55 precedes at which the predetermined based on the program Operation is to be performed. If a program is playing, the command or the Commands to be transmitted from the computer 62 to the video disk player 56 in advance in a buffer memory transferred in the command analyzer 121 and stacked there. The command analyzer 121 then determines whether the reproduced Address information from disk 55 matches the address of the stacked instruction and returns a control signal to the turntable operating

control device 122 when the reproduced address information and the address of the stacked instruction match. The video disk player 56 is therefore able to perform the predetermined operation that is in accordance with the stacked instruction with a extremely short time delay to make from the time when the predetermined position on the disk 55 is reached. In this case, predetermined signal processing is performed during one field is carried out in which the reproduced address information is obtained with a predetermined value, and the Video disk player 56 can perform the operation based on the stacked command of the subsequent field is based. The time delay is therefore only one field.

As previously explained, the video disk player 56 performs various operations by: that on the basis of control commands transmitted from computer 62 to video disc player 56, the pick-up pin is moved. For example, the pick-up pin can move at high speed to a . predetermined track position to perform a search operation. Furthermore, the video disc player carry out still picture reproduction or a search for a program according to a predetermined one Chapter numbering after normal playback has been performed for a certain time.

The recorded video and audio signals taken from disk 55 in video disk player 56 and are reproduced are passed to a television monitor 113 and displaying the reproduced image a loudspeaker presenting the reproduced sound

114. At the same time it is possible to do that on the plate

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accept and play back the recorded control program. As a result, commands between the disk player 60 and the external device 61 can be sent can be transmitted bidirectionally, and it is possible to have a reciprocal playback or a dialogue mode to execute.

The information recorded on the disk 55 may, for example, be a report on the Japanese Industry according to FIG. 25 concern. This report consists of individual reports, namely a report

210 on the overall industry, a 211 report on heavy industry, a 212 report on light industry, a 213 report on the chemical industry, and a 214 report on the future outlook. It is assumed that the reports are recorded in a time-sequential manner over 10,000 tracks each. It is also assumed that a control program signal allowing the user to select a search operation is recorded at a position a with a track address "200" which immediately precedes the overall report 210 and at a position b with a track address "9700 ⁿ " at which has ended the recording of the overall report 210. It is also assumed that a control program signal which allows the user to select one of the reports

211 to 213 and allows a search for the start of the selected report, at position b is recorded. Finally, let it be assumed that a control program signal is recorded, which is the User allows, at the positions f to h, at which the recording of the respective reports 211 to 213 is finished to make a selection as to whether to jump back to position b, whether the area 214 is to be played back or whether a jump is to be made to an end position j at which the recording

is finished.

In this case, the control program reproduced at the track address "200" and written in an intermediate language with, for example, the instruction "If ENTER key $ is" N ", then search 9700" is subjected to signal processing including error correction and the like, such as it is explained above, and then fed to the computer 62 via the RS232C driver. The computer 62 decodes the control program supplied to it and detects the input from the keyboard 136. If the input from the keyboard 136 is the letter "N", the computer 62 generates a command "Search 9700", which means that the track address ^N 9700 ^{M is to be} searched for. This "Search 9700" command is fed to the interface box 57 via the RS232C driver 145. If the command analyzer 121 decodes this command upon receipt of this command, the control device 122 is caused to execute this search command. In this operating state, the signals recorded on the disk 55 which are recorded immediately after the position at which this command is reproduced to the position immediately before the track address "9700" are not reproduced.

On the other hand, if the input from the keyboard I36 is not the letter "N", the described search operation not carried out. It then starts playing back to a track address with normal playback "9900" continued.

Next, at the track address "9900", a control program "Key On Search · 10000, Search 20000, Search 30000 ". This control program allows one of the reports 211, 212 or 213 to be selected

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to play back. Is input from the keyboard 136 equals "1", the computer 62 sends a "Search 10000" command to the interface box 57. Likewise The computer 62 delivers the commands "Search 20000" and "Search 30000" to the interface box 57, if the input from the keyboard 136 equals "2" or "3" is. Operations are then carried out which are similar to the operation described above. After that, more such operations are brought to execution.

The invention is not restricted to the exemplary embodiments described. For example, you can too can be applied to an optical disk. The signals recorded on the optical disk are thereby reported that changes in the intensity of light reflected from the disk are detected is transmitted by the plate, whereby a beam of light is thrown onto the plate. The invention can also can be applied to a case where only a single-channel audio signal exists. Furthermore, this can Control program signal is recorded independently in an intermittent manner in place of the second-channel audio signal will.

Although it is shown in FIG. 8 is not shown, can

on the output side of each of the audio signal sources 27 and 28, a noise suppressing circuit may be provided, and on the output side of the circuit 31 may be provided there is a pre-emphasis circuit.

Thus, further various changes and modifications are within the scope of the teaching according to the invention conceivable.

Li / Gu

Claims (7)

Patent attorneys Reichel and Reichel 10583 Parkstrasse 13
60C0 Frankfurt aMl 3 4 0 3 I b ö VICTOR COMPANY OF JAPAN. LTD. , Yokohama, Japan Claims ί1. J signal recording arrangement for the simultaneous "recording of video and audio signals on a rotating recording medium,
characterized in that the signal recording arrangement includes: a control program signal generator device (11 to 21, 25) for generating a control program signal, the input and output control commands and internal processing commands of an external device (61), the is connected to a playback device (56) serving to play back the rotating recording medium, wherein the external device is a computer (62) or the like with a decision function (discrimination function) is, a modulation device (26, 34, 36, 37, 29) for modulating the control program signal on the basis of a Reference clock signal having a period which is a multiple of the horizontal scanning period corresponding to a natural number of the video signal, a band limiting device (30) for limiting the band of that occurring at the output of the modulation device modulated signal onto the tape of the audio signal, and a recording device (26 to 28, 31 to 45, 22) for recording a band-limited modulated signal provided by the band-limiting device at least together with the video signal on the rotating record carrier in synchronism with that in the Video signal occurring horizontal sync signal, the band-limited modulated signal in a state is recorded, according to which the band-limited modulated signal is time-sequentially multiplexed with the audio signal or recorded independently in place of the audio signal. 2. Arrangement according to claim 1,
characterized in that the modulation means subjects the control program signal to self-clock modulation and in that the modulated signal has a bit period which is a multiple of the horizontal scanning period of the video signal corresponding to a natural number. 3. Arrangement according to claim 1, through this. characterized in that the control program is recorded in units of blocks that each of the blocks has a fixed length and is transmitted within a predetermined period of time which is approximately equal to the duration of one half of the video signal. 4 ₀ arrangement according to claim 2, characterized in that the band-limited modulated signal from the band-limiting device so recorded on the rotating recording medium by the recording device that the phase of peak values of the band-limited modulated signal is substantially the phase of the Horizontal sync signal in the video signal. 5. Arrangement according to claim 1,
characterized in that the video signal is recorded on the rotatable recording medium in a state in which the video signal is multiplexed with an address signal containing track position information within a predetermined video signal period, and in that a part of the address signal is inserted with a signal which contains information for discriminating or making a decision as to the existence of a recorded control program. 6. Arrangement according to claim 1,
characterized in that the control program is written in an intermediate language which is in accordance with a predetermined format and which is basically written in direct instructions, and in that the format of the intermediate language is different from the format of a language originally set with respect to the external device having the discrimination function .
10 7. Rotating recording medium on which video and audio signals are multiplexed on the same track of the video and audio signals are recorded, the rotating recording medium according to the signal recording arrangement recorded according to claim 1, characterized in that the recording is recorded on the rotating recording medium contains a modulated signal obtained by modulating a control program signal based on a Reference clock signal having a period equal to that corresponding to a natural number has been obtained Is multiples of the horizontal scanning period of the video signal, the control program signal being input and Output control commands and internal processing commands an external device that is connected to a playback device used for playing back the rotating recording medium is connected, and wherein the external device is a computer or the like with a discriminating or Discrimination function is, and that the modulated signal is band-limited to the band of the audio signal and at least together with the video signal in sync with the horizontal sync signal appearing in the video signal in has been recorded in a state in which the band-limited modulated signal is time-sequential with the Audio signal is multiplexed, or recorded independently in place of the audio signal.