DE3403168C2 - Signal recording arrangement and rotating recording media recorded by the arrangement - Google Patents

Abstract

The signal recording arrangement allows a control program to be recorded on a rotating recording medium in such a way that a dialog operation can be carried out when the recording medium is reproduced in a reproducing device using a home computer connected to the reproducing device. For this purpose, a control program signal representing the control program is brought into a special signal format. Thereafter, the control program signal is modulated on the basis of a reference clock signal, the period of which is a multiple of the horizontal scanning period of the video signal, and then limited to the band of an audio signal. The control program signal having this signal format is time-sequentially multiplexed with the audio signal and then recorded on the recording medium in a state in which the control program within the multiplexed signal is synchronized with the horizontal sync signal of the video signal. Thus, the control program signal is recorded on the same track as the video and audio signals and no additional storage capacity is required.

Description

The invention relates to a signal recording arrangement for the simultaneous recording of Video and audio signals on a rotating recording medium according to the preamble of the patent claim 1. The invention also relates to a rotary recorded by the signal recording arrangement Record carrier according to the preamble of claim 7.

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 Computer intended for personal use (personal computer) that discriminates (jump commands perform) or make distinctions. The disk playback device is to be controlled by the computer will. For example, the computer can be connected to a playback device that is designed in this way is that it can play a video disc, on the one in a spiral track or on the concentric one

Traces a video signal and audio signals in the form of changes in the geometric configuration are recorded. In this case, it is possible to operate the video disk in a so-called reciprocal mode or to play interactive mode. This makes it possible to use the video disk in different ways for example to record teaching programs and to record games. When a computer intended for personal use is connected to a playback device which is used for playback If an audio disc is used, it is possible to monitor or display an image that affects the sound reproduction and is generated by the computer at the same time as the associated audio signals can be removed from the disk and played back. Such simultaneous display of picture and sound makes playing the audio disc more interesting and enjoyable for the listener.

So that the disk player is controlled and controlled by the computer intended for personal use information can be generated in the computer which relates to the signal reproduced from the disk it is necessary to load a control program into the computer. This control program must be in be written in a predetermined programming language consistent with an interpreter or interpreter program of the computer used or which is placed on a monitor device or the like It is therefore necessary to have a certain number of control programs in accordance with the information content (type) of the disk provide. Furthermore, it is necessary, according to all models of the possibly used Computer to prepare a certain number of control programs even for the same type of disks. The need for the development of many required Programs, therefore, are a heavy burden and burden.

Furthermore, since the control program is not provided on the video disk, the user must use the control programs store independently. With a larger number of types of video disks to be stored increases the need for the user to independently use a corresponding number of control programs or keep them separately. You therefore also need a lot of space for the large number of control programs. Another shortcoming is that in the control of the video disc player by the computer in the conventional manner described between the computer and the video disc player only a unidirectional flow of information is possible. The information coming from the computer is simply fed to the disc player, and there is no possibility of to inquire 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 recorded on an inner disk, for example Edge portion of 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 the control program Namely, signals representing are recorded on tracks other than the tracks for audio signals are. In addition, one can have a desired working method or a specific desired one Do not run operation until the entire recorded control program has been loaded into the computer is. So that you can see an image generated by the computer and an image taken from the audio disc at the same time Sound can please, it is necessary to put up with a predetermined waiting time that is required is to remove the recorded control program from the audio disc and save it to the personal Use intended calculator to load. There is thus the disadvantage that one with the decrease and reproduction the audio signals cannot start immediately. Furthermore, the memory capacity of the computer be relatively large, as the computer stores the entire recorded control program at once got to. With this conventional method, the computer is also unable to use the audio disc player to control, and there is therefore no inactive operation or dialog.

Finally, there is also a play device that looks like this is designed to work with it using a personal calculator and a floppy disk serving as external storage

2ö named adventure game can play this game device however, it can only display one type of cartoon. In addition, there is a storage capacity on the order of 4 kilobytes required to obtain a still image. If you use this for example a compact disk with only one side of recording can only hold 40 still images reproduce. In addition to the video signals relating to the still images, however, it is also necessary to save the control program.

The signal recording arrangement according to the preamble of claim 1 and the rotating recording medium according to the preamble of claim 7 are known in principle from DE-OS 31 29 920. According to this prior art, one already has a modulated control program signal that is limited to the band of an audio signal, recorded together with a video signal on the recording medium, either sequentially with the audio signal or instead of the audio signal. When playing back the recorded modulated control program signal, it is necessary to provide a clock signal generated by an oscillator, which has to provide for a suitable timing of the recovered modulated control program signal contributes to a complex and expensive structure of the playback device.
From DE-OS 32 20 223 it is known in a video tape recorder connected to a computer to store program signals on the magnetic tape in such a way that certain relationships with the horizontal synchronizing signal are maintained.
According to an earlier international patent application published by WO-OS 83/04463, the prior art also includes a device connected to a computer for recording data on a video board with the aid of a laser beam. For this purpose, the data signal from the computer is converted into the format of a video signal containing the data to be stored. This video signal, which contains the computer data in video format, arrives at a video disk production device and is recorded there in a memory format on the video disk.

Based on the prior art according to DE-OS 31 29 920 solves the claims 1 and 7 claimed Invention, the task of the recording of the control program signal in such a way vorzu-

see that when playing the generation of a clock signal by means of a specially provided There is no oscillator.

According to the invention, the control program signal is modulated on the basis of a reference clock signal with a frequency fnln, where /// corresponds to the horizontal scanning frequency of the video signal and η is a natural number. This expensive program signal, modulated in a predetermined relationship to the horizontal scanning frequency of the video signal, is then limited to the band of the audio signal in a band-limiting device connected downstream of the specially designed modulation device. The recording is then carried out in such a way that, together with the video signal, the limited modulated control program signal is recorded on the recording medium either sequentially with the audio signal or, instead of the audio signal, synchronously with the horizontal synchronizing signal of the video signal.

The modulated control program signal recorded according to the invention becomes synchronous when reproduced with the horizontal sync signal in the reproduced video signal. Therefore not applicable one in the prior art according to DE-OS 31 29 920 existing oscillator, which there to generate a is used for a suitable timing ensuring clock signal.

In a preferred development of the signal recording arrangement according to the invention, the control program recorded in units of blocks each having a fixed length and in a predetermined Duration are transmitted which is approximately equal to the duration of a field on the rotating recording medium video signal to be recorded. Equally, the trained according to the invention rotating recording media on a consistent record. After that it is possible compared with a case where the control program is in units of variable-length blocks is recorded to simplify the structure of the reproducing apparatus.

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, obtained by frequency division of the horizontal synchronizing signal frequency in the ratio 1/2, and that the control program signal thus modulated is recorded on the rotating recording medium will. The invention also extends to a rotating recording medium in which the Control program signal is preferably recorded in the above manner. If you play one with one of these Recording provided rotating recording medium in the playback device corresponds to the phase of the recovered horizontal sync signal is approximately the phase of the peak in the recovered modulated control program signal. This makes it possible to restore the data using the retrieved or to demodulate the reproduced horizontal sync signal without generating it requires a special clock signal component.

Furthermore, the signal recording arrangement according to the invention is preferably designed so that in one Part 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 record the Discriminate or determine the position of the control program without using an address signal reproduction system of the existing playback device and without an additional address signal for a To use an indication of whether the control program has been recorded.

In addition, the signal recording arrangement according to the invention is preferably distinguished by this from that the control program is recorded in a manner according to which it is in the form of a Direct statement (command) is written. The recording medium is preferred in a corresponding manner According to the invention, the data length of the commands in the control program is such that most Commands are recorded within one field of the video signal. Hence, it is not necessary before Start of playback of the entire control program in the device having the discriminating function load. This means that playback can begin immediately, and the memory capacity of the Device can be small compared to the storage capacity required for a case in which the entire control program must be loaded into the device before playback begins.

Finally, according to the invention, a rotating recording medium is also provided which has at least can provide a large storage capacity for the video signal (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 explained below by way of example with reference to drawings

F i g. 1 a general overview example to illustrate a method for creating a control program, to be recorded by the signal recording arrangement according to the invention,

Fi g. 2 an example of the nature of Γ .wen in the course of the production of a control program signal,

F i g. 3 an example of the nature of a substantial proportion of the in FIG. Data shown in 2,

F i g. 4 examples of values of information bits, an error correcting code and a parity bit in the essential data share according to F i g. 3,

Q: 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 a minimum block unit and an associated transmission period,

F i g. 8 shows a systematic block diagram of an exemplary embodiment the signal recording arrangement according to the invention,

F i g. 9 signal curves over time to explain the mode of operation of an essential part of the block diagram according to FIG. ε,

10 shows waveforms over time to explain the Operation of another essential part of the block diagram according to FIG. 8th,

F ] $ 11 the location of a bit, which indicates whether the control program signal is to be recorded, within a track number address signal,

Figure 12 is a graphical representation of an example of the Frequency spectrum of the signals recorded on the rotating record carrier according to the invention should be

F i g. Figure 13 shows an example of a general track pattern on the rotating recording medium according to the invention.

14 shows an example of an interconnection between cinerri Plaiter.v / playback device for the rotating Recording media and external devices that are externally connected to the disk playback device are,

Fig. 15 is a general top view of an embodiment of the disc player;

F i g. 16 is a systematic block diagram of an embodiment part of an existing signal reproducing device in the disc player,

Fig. 17 is a systematic block diagram of an example a reproducing arrangement for reproducing a control program signal in the disk reproducing device,

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

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

F i g. 2OA and 2OB systematic block diagrams each of examples for other important parts of the Block diagram according to FIG. 17,

Fig. 21 is a flow chart for explaining the operation a microprocessor if the microprocessor is used 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 when the decoder is from a digital Circuit is formed,

F i g. 23 is a circuit diagram showing input signals and output signals applied to the pins of a essential part of an interface circuit /? 5232C occur,

F i g. 24A, 24B, 24C and 24D are flow charts for explanatory purposes the operation of a command analyzer in the block diagram of FIG. 17 and

F i g. Fig. 25 is a diagram showing an 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, a picture is recorded by a television camera 12 on the basis of a script 11. The video signal generated by the television camera 12 is processed and then recorded on a magnetic tape with the aid of a video tape recorder 13. The audio signal generated by the microphone 14 is processed and then recorded on a magnetic tape with the aid of a tape recorder 15 the video and audio signals s provided. In addition, a coupling or connection program is provided. In the production of the control program 16, the addressing of jump commands is carried out with the aid of marks, and page coordinate commands (for example, locate commands and pen commands) are given in the form of percentages of the X and Y coordinates. This measure is taken because the size of the screen of the personal computer or the like depends on the model. In this way, regardless of the model of the particular computer used for personal use, it is possible to display the image essentially in an intended position on the screen.
The control program is translated in an editor and compiler 17 into an intermediate language which is peculiar to the invention. Then, a simulation is carried out based on the control program which has been translated into the intermediate language, 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 in the simulator and debugger 18 the simulation and debugging takes place. In this way the control program is produced in the intermediate language. That in the intermediate language The present control program is further modified by the fact that the distance between the marks (the distance between Scenes to be inserted) and the sequence of marks is taken into account, namely by referring to a label table 19, and that furthermore the location of subroutine instructions ii is taken into account. This is finally created by entering the control program at predetermined time positions a control program 20 with regard to the video and audio signals to be reproduced.

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

Thus, the block length of the original information data in the control program 20 becomes any of Data block units defined, each representing a multiple of 6 bytes. Is the block length of the original one Information data less than or equal to 6 bytes, the data block unit is set to 6 bytes (48 bits) If the block length is greater than 5 bytes and less than or equal to 24 bytes, the data block unit is set to 24 bytes. Is the data block length greater than 24 bytes and less than or equal to 48 bytes, the data block unit is set to 48 bytes. is 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 (for example special video effects) of a disc playback device to be described, of input and output control commands of an external device, for example a computer intended for personal use, a gaming machine or the like, which has a distinguishing or decision-making function and with the disk reproducing device, and from internal processing instructions (e.g., substitution instructions, operation instructions, instructions for generating arbitrary numbers, and subroutine batch instructions) of the external device. The control program 20 is basically written in direct instructions (direct instructions), and the block length is normally less than or equal to β 5 "tes or u & sr less sls cder ^! Eic ^ ¹ 24 bytes. In the case of order substitutions, data instructions and control programs such as a subroutine stack that has to be stored in an external device, the block length can be larger than 48 bytes This dummy data is inserted so that data rearrangement can be carried out, which will be explained later.

The data block length specified above is divided into units of 6 bytes. A header, which represents 1-byte information, is added to the beginning of each of these 6-byte data sections. 2 shows a 1-byte header HE which has been placed in front of a 6-byte information data part DO to O5. Each of the 7 bytes that form the header HE and the information data DO to D 5 is divided into upper 4 bits and lower 4 bits. A 3-bit error correction code and a 1-bit parity bit are added following the upper 4 information bits relating to information data in each of the 7 bytes mentioned above. Similarly, a 3-bit error correction code and a 1-bit parity bit are provided following the lower 4 information bits relating to information data in each of the 7 bytes described above. 3 shows data which consist either of upper 4 or lower 4 information bits b 1 to i> 4, of the 3-bit error correction code b 5 to b 7 and the 1-bit parity bit b 8.

The values of the in F i g. Bits b 1 to b 8 shown in FIG. 3 are, for example, corresponding to the illustration according to FIG. 4 selected. Thus, both the upper 4 information bits and the lower 4 information bits of each of the 7 bytes of FIG. 2 4-bit check bits £> 5 to k 8 each added, as shown in FIG. 3 emerges. The in F i g. The block shown in FIG. 2 is thus formed from 14 bytes, as shown in FIG. 5 shows. In Fig. 5 are the upper 4 bits and the lower 4 bits of the in FIG. 2 head part HE shown with HEu and HE _L designated. Likewise, in the illustration according to FIG. 5 the upper 4 information bits of the information data DO to DS according to FIG. 2 indexed with LJ and the lower 4 information bits of the information data D 0 to D 5 according to FIG. 2 indexed with L. Furthermore, 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 determine an error that may occur in the 4-bit information data immediately preceding them and correct this error.

Next, the data in the 14 bytes of FIG. 5 rearranged (so-called scrambling or nesting), around the effects of temporally concentrated disturbances during playback so small as possible to keep. The 14-byte data according to Fig. 5 are divided into 1-byte units. Assuming that the data in each of these bytes is corresponding the representation according to FIG. 6A are numbered

ίο a rearrangement of this data according to the Illustration according to FIG. 6B. After this rearrangement or rearrangement of the data is rearranged to the beginning of the A 1-byte frame code is added to 14-byte data to represent the beginning of the rearranged 14-byte data.

th display. A transmission period in which 1 bit of a 15-byte control program signal composed of the 1-byte frame code and the rearranged 14-byte data is set equal to 2W, where H represents a horizontal scanning period. If it continues to act as shown by Figure 7 wherein the recorded video signal is a video signal by the NTSC system, the above-described 15-byte control program signal for a period of 240H from a scanning line number 21 H is applied to a scanning line 260W ( a scan line number 284 // up to a scan line number 523H) . Furthermore, the 15-byte control program signal is modulated by a self-clock modulation arrangement and, for example, time-sequentially (time-divided) multiplexed with the audio signal. This time-sequentially (time-divided) multiplexed signal is generated with the aid of a signal shown 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 FIGS. The 15-byte control program signal shown in Fig. 7 is drawn for almost one field ai '/. However, the 15-byte control program signal is not transmitted for periods G 1 and G 2, which together amount to 22.5 //. These time periods G 1 and G 2 are provided so that the 15-byte control program signal can be reproduced safely, even if a special reproduction is carried out and the acceptance reproduction element of a video disc player to be described is inevitably in the area of the scanning line number 11 H within the Vertical blanking period is shifted from one track turn to another track turn. 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., four times in one track turn). In this case, it is possible to reproduce the control program signal even in the event that the pick-up reproducing element is forcibly shifted from one track turn to another track turn at an arbitrary position on the one track turn.

Next, a signal recording arrangement which records the signals according to the invention will be discussed in more detail explained. One shown in FIG. The control program generator 25 shown in FIG. 8 generates according to a time cycle F i g. 7 the control program signal, which corresponds to the on the basis of FIG. 1 to 7 explained method.

Jet has been. A color video signal source 26 generates, for example, an NTSC color video signal. An audio source 27 provides a first channel audio signal and its audio signal source 28 generates a second channel audio signal. The control program signal generated by the control program signal generator 25 is an NRZ signal (Recording signal without return to the basic state), which in its occurring form for the Recording and playback is not suitable. The control program signal is therefore by means of a self-clock modulation arrangement, for example by frequency modulation (FM), two-phase marker modulation or two-phase pause modulation, into a signal according to FIG. 9 (C) reshaped.

A horizontal synchronizing signal Ζ shown in FIG. 9 (A) is fed to a modulator 29 by a synchronizing signal separator 37. The modulator 29 frequency-divides the horizontal sync signal fn 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 shown in Fig. 9 (C), the modulated signal alternately reverses its state with a period of 1 H when the data in the NRZ signal shown in Fig. 9 (B) is "1" and it reverses changing state with a period of IH when the data in the NRZ signal represents a "0". Compared to the NRZ signal, the modulated signal contains a smaller DC voltage component and a larger clock signal component. It is therefore suitable for recording and reproduction. The modulated signal is limited in terms of frequency band to the band of the audio signal and delayed by approximately \ H , in a low-pass filter 30. The output signal of the low-pass filter 30 therefore has a substantially sinusoidal waveform, as shown in the picture. F i g. 9 (D). F i g. 9 (A) and 9 (D) clearly show that the phase of the peak values in the output signal of the low-pass filter 30 essentially coincides with the phase of the horizontal synchronizing signal fn. In the disc reproducing apparatus to be described later, therefore, the data can be read using the reproduced. Demodulate the horizontal sync signal /// 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 33. The frequency modulator 33 then supplies a frequency-modulated signal / ^ in a band of, for example, 3.73 MHz ± 75 kHz 2 frequency-modulated by the time-sequentially multiplexed signal described above to a mixer 43. On the other hand, a frequency modulator 32 supplies, in a band of, for example, 3.43 MHz ± 75 kHz, a frequency-modulated signal fA 1 which is frequency-modulated by the first-channel audio signal is. to the mixer 43.

The NTSC color video signal from the color video signal source 26 is applied to comb filters 34 and 35. The comb filter 34 comb filtering in a band above 2 MHz including a Carrier chrominance signal, which is converted into a lower frequency band of 2.56 MHz, increases in proportion to the band multiplex. The carrier chrominance signal converted to the lower frequency band will be later still described. A luminance signal that appears in the comb

ic ter 34 is separated, arrives at a low-pass filter 36. The low-pass filter 36 band limits the upper limit frequency of the luminance signal to approximately 3 MHz before. The comb filter 35 supplies a carrier chrominance signal in a band of 3.58 MHz ± 5 kHz, and this signal arrives at eir.; m Chrominance subcarrier generator 38 and to a chrominance signal converter circuit 39. The chrominance subcarrier 38 works in a per se known Way to get from a synchronizing signal gate pulse and a color synchronizing signal in the carrier chrominance signal generate a continuous oscillation at a frequency equal to the chrominance subcarrier frequency ftc (3.579545 MHz in the case of the NTSC color video signal) of the Ti'ägerchrominanzsignals is. The synchronous signal gate pulse is formed from the sync signal, which is in the sync signal separation circuit 37 from the am Output of the low-pass filter 36 occurring luminance signal is separated. The chrominance signal converter circuit 39 multiplies the frequency of the continuous oscillation of the chrominance subcarrier generator 38 with 12/7 and subjects this to the multiplied continuous oscillation and the supplied carrier chrominance signal a beat implementation. Consequently occurs at the output of the chrominance signal converter circuit 39 has a carrier chrominance signal converted into a low frequency band and a chrominance subcarrier frequency of 5 / sc / 7 has.

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 multiple fourth signal appearing at the output of the mixer 40 in a band-proportioned manner is subjected to a pre-emphasis in a pre-emphasis circuit 41, and the pre-emphasis signal is received then to mixer 43.

The continuous oscillation at the chrominance subcarrier frequency fsc occurring at the output of the chrominance subcarrier generator 38 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 fp 1 with a frequency of / sc / 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 / sc / 7 during subsequent four fields . The reference signal generating circuit 46 repeats an operation in which the first and second reference signals fp 1 and fp 2 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, / se / 13, to be precise at a point in time at which the switchover between the first and second reference signals fp 1 and fp2 occurs. The reference signal generator circuit 46 generates the third reference signal / p3 for a duration of approximately 3 hours and supplies this third reference signal fp 3

to a mixer 45. 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. It can be seen from Fig. 10 (C) that the third reference signal fp 3 is generated substantially in accordance with the occurrence of the vertical synchronizing signal. The first and second reference signals fp 1 and fp 2 are generated with a period of XH as shown in FIG. 10 (D)

Fig. 10 (B) shows that a chapter address signal Ac, a time address signal At, and a track number address signal (page number address signal) An are transmitted in scan line numbers 17 //, 18 // and 20 // during a 1 // period, respectively. In the case of an even field, the chapter address signal Ac, the time address signal Ar and the track number address signal An are transmitted in the scanning line numbers 280 //, 281 // and 283 //. These address signals arrive via a device shown in FIG. Input port 42 to mixer 43 shown in Fig. 8. The chapter address signal Ar indicates the recording position of the signal on the disk in the sequence of recorded programs. The time address signal Ar indicates the total time. The track number address signal An indicates the number of the tracks 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 Ac, At and An each consist of 29 bits.

F i g. 11 shows an example of a signal format of the Spumummeradreßsignals After arrival F i g. 11, a synchronizing signal 50 is arranged with a fixed predetermined pattern and with a value of, for example, "C" in hexadecimal notation in the first to fourth bits, which are designated 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 for transmitting the track number address signal, and it takes a value of "01", for example. The audio discrimination code 52 is used to discriminate the type of audio signal recorded (for example, stereo, monaural and bilingual). A code indicating the track number is in the next 20 bits, which range 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, thousands, hundreds, tens and ones of the track number in hexadecimal notation . In the case of a disk on which one side of the disk can be recorded for up to a maximum of 60 minutes, the result is a track number of up to 45,000. The maximum value of the 4-bit code division 53a is therefore "5" in hexadecimal notation in in this case, and "5" in hexadecimal notation means "0101" in binary. The most significant bit of the 4-bit code division 53a, ie the ninth bit of the track number address signal, always assumes the value "0". This most significant bit is shown in FIG. 11 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", it is assumed that the control program signal is recorded for a period of 240 // starting from scan line number 21 // (284H). The signals fed to the mixer 43 are multiplexed and the multiplex signal appearing at the output of the mixer 43 is converted into a signal shown in FIG. 8 frequency-modulated frequency modulator From the output of the frequency modulator 44, the frequency-modulated signal reaches the mixer 45. As a result, a mixed signal occurs at an output connection 47, which contains the frequency-modulated signal from the output of the frequency modulator 44 and the third reference signal fp 3 from the reference signal generator circuit 46

Fig. 12 shows an example of a frequency spectrum of the signal to be recorded. A band I represents a carrier sweep frequency band of 23 MHz of the frequency-modulated luminance signal. A frequency / j indicates a frequency of 6.1 MHz, which corresponds to the synchronous peak. A frequency / j, represents a frequency of 6.6 MHz, which corresponds to the Corresponds to black level reduction. A frequency f _c is a frequency of 7.9 MHz, which corresponds to the white peak. Bands Ily and Hz. Represent the upper and lower sidebands of the frequency-modulated luminance signal. Bands Uly and IUj. represent the upper and lower sidebands of signals obtained by frequency modulating the frequency modulated signals f _A \ and / λ 2. Carriers of the frequency-modulated signals Λ ι and U 2, which have frequencies of 3.43 MHz and 3.73 MHz, are indicated in Fig. Ί2 with 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 to produce the frequency-modulated Get signal Λ 2. The frequency-modulated signal / * 2 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 has been subjected to the above-described time-sequential multiplexing process, the frequency modulating process and the other frequency modulating process.

The band V shown in FIG. 12 represents the band of the carrier chrominance signal which is converted into the low frequency band and appears 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, one obtains first sidebands Vl; / and Vl /, as well as second sidebands VII _(/ and VII / .. The frequency spectrum shown in FIG. 12 by a solid line is obtained represents the frequency spectrum of the signal recorded on the original or original recording disk.

The reference signals fp 1, fp 2 and fp3 are in an unused band below the band VII /. arranged. The band occupied by the reference signals fp 1 to fp3 and the band occupied by the information signal are separated from each other because these signals are present

must be removed and reproduced from the same acceptance playback element.

The information signal which is transmitted to the one shown in FIG. 8 occurs, and the reference signals fp 1 and fp 2 appearing at the output terminal 48 are converted into first and second modulated laser beams in a known cutting device which makes use of a laser beam. These first and second laser beams are simultaneously applied condenses a photosensitive agent covering the surface of the original recording plate in a state where the first and second laser beams are separated from each other by about half the track pitch or half the track pitch. The original recording disk is then subjected to a known developing process, and thereafter a known plate making process is carried out . 13 has the trace pattern shown.

The information signal appearing at the output terminal 47 contains the video signal, the audio signal, the address signal ^ 2i and the control program signal. This information signal is recorded on a spiral track T on the disk 55 shown in Fig. 13 as a frequency modulated signal. The recorded information signal contains a series of intermittent pits which correspond to the informational content of the information signal. In the single continuous spiral track T, which is indicated by a solid line in FIG. 13, the individual track turns on the disk 55 are denoted by ί 1.12, ί 3, .... Each track turn consists of pits of the information signal which are formed in a flat surface of the disk. There is no guide groove for guiding the acceptance playback element. With respect to a track turn are hollows or pits of the first reference signal fp 1, and hollows or pits of the second reference signal fp2 in the longitudinal direction of the track on the one or the other track side for each horizontal scanning period 1 H in positions formed corresponding to the horizontal blanking period.

In the space in the middle between the center lines of adjacent track windings, however, there are only the pits of one reference signal fp 1 or of the other reference signal fp2. This means that with respect to a track turn, the sides on which the reference signals fp 1 and fp 2 are recorded alternate per track turn. The tracks from the first reference signal fp 1 are shown by broken lines, whereas the tracks from the second reference signal fp 2 are shown by dot-dash lines. The places or positions at which the vertical sync signal is recorded in each field are marked Vi, V2,

V). The third reference signal fp3 is for

a duration of 3W, as already described, for the

Starting points of the tracks ti, f 2, ί 3 recorded,

ie at positions V ₁ . V ₅ , V ₉ in places where

which the recorded reference signals fp 1 and fp 2 alternate with each other.

One revolution of the plate 55 corresponds in the example under consideration to a duration of four fields of the video signal. The vertical blanking period is located on the tracks ί 1, ί 2, f 3, ... in areas designated by a, £>, c and d .

The control program recorded according to the invention is written in terms of code in direct statements. 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 are in the range of 15 bytes, as shown in FIG. 7 is shown. This control signal is used for a duration of 240 // recorded. The second channel audio signal however, is recorded in the subsequent track turns Since the control program is consecutive is recorded in each of the tracks in a distributed manner, the control program in the personal computer or the like that is being used at the time of playback is loaded every time the disk 55 is played. As a result, the storage capacity of the The calculator used for personal use can be small as there is no need for the control program to be saved once the instructions (commands) have been executed in the control program

As explained above, the control program is in a written in a predetermined intermediate language. As will be explained, it is necessary to have a disk language interpreter or to have a record language interpreter program to convert the intermediate language into a Predefined language can be interpreted by the external device, for example the personal one Using imaginary computers, understands the interaction or dialogue between the disc player and the external device through the use of such a disk language interpreter possible. In other words, it is thus necessary to implement a number of control programs accordingly the number of types of panels to prepare, however, by preparing or providing one Number of languages interpreters accordingly the total number of types of languages used in the external devices under consideration it is sufficient to offer only one type of control program for one type of disk. Compared to that The conventional case described above therefore becomes the burden on software development in one greatly reduced.

Furthermore, the control program is recorded on the same track as the video signal or the like, using the transmission path 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 the storage capacity is identical to the conventional disk on which no control program is recorded. This means that by the measures according to the invention, the recording capacity of the disk with respect to the first-channel audio signal and the video signal is not limited.

Next, the disc player will be explained that picks up and reproduces the recorded signals from the disk, recording them with the arrangement according to the invention was carried out. In the case of the in FIG. 14 shown arrangement local commands in both directions between a video disc player 56 and an interface box 57 transferred. The signals picked up from the disk in the video disk player 56 and played back are passed to a video / audio processor 58 which is used to obtain special effects will. Furthermore, local commands are sent 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 that resides on the video disk player 56, the interface box 57, the video / audio processor 58 and the character and audio generator 59, referred to as disk player 60, Es it is not essential that the video / audio processor 58 and the character and audio generator 59 are provided. It is further assumed that the interface box 57 is a standard interface that can transmit bidirectionally, with one step, for example ÄS232C can be used.

In the arrangement of FIG. 14, various types Commands based on the control program picked up and played back from the disk, in both directions between the interface box 57 within the disc player 60 and an external device 61 which can make a decision and discrimination Has discrimination function The external device 61 may be a device such as a for computer or a gaming device 63 intended for personal use. Furthermore, video and Audio signals generated by the external device 61 via the video / audio processor 58 to a Television receiver 64 supplied the video and audio signals obtained by recording images and sound from a television camera 65 are also generated via the video-audio processor 58 to the television receiver 64.

The video disc player 56 includes a known signal pickup device, tracking servo circuit, and the like. A brief description of these elements that make up the video disc player 56 follows. According to FIG. 15, the flake 55 is placed on a rotary or turntable 66 and clamped there with a clamping device 67. The plate 55 rotates together with the turntable 66 in a clockwise direction at a predetermined speed. A signal pickup device 68 includes an insert 71, a coaxial resonator 72, etc., and is mounted on a carriage 73. The insert 71 contains a support arm 70, at one tip of which a pick-up pin 69 is provided. The carriage 73 has two rollers 74a and 746 on one side and a roller 75 on its other side. The rollers 74a each have a groove. A protrusion 76 on carriage 73 is attached to a belt 78 which runs over pulleys 77a and 77b . A feed motor 79 drives the pulley 79 through a gear mechanism 80. When the feed motor 79 rotates, the rollers 74a and 74b pass over a rail 82a mounted on a chassis 81, while the roller 75 overrides a rail 826 runs. The carriage 73 is thus movable in the directions of the arrows Yi and Y2 shown.

In the following, with reference to FIG. 16, a signal demodulation arrangement of the video disc player 56 will be explained. In FIG. 16, those parts which correspond to parts according to FIG. 15 are given the same reference numerals. According to FIG. 16 is the plate 55 on a turntable which is rotationally driven by a motor, not shown. The plate 55 therefore executes a synchronous rotary movement at a high speed together with the turntable in the direction of an arrow Y shown. As the plate 55 rotates, the pick-up pin 69 slides 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 boom 70, and a permanent magnet 84 is attached to the foot at the other end of the support arm 70 Video disc player 56 are appropriate. A right and a left coil part of the dither compensation coil 86 are wound with the same phase. As a result, the cantilever or bracket 70 moves longitudinally along the tangential direction of the track on the disk 55, compensating for any possible tremor that may be caused by eccentricity, surface irregularity, or other incompatibility of the disk 55. The tracking coil 85 generates a magnetic field along a direction that is perpendicular to the magnetic field of the permanent magnet 84. As a result, the support arm 70 is caused to move in one of the two directions indicated by an arrow Z (transverse direction of the track), namely by an amount, depending on the polarity of a tracking error signal which a tracking circuit 100 supplies which depends on the amount of the Spui tracking error signal.

A pick-up circuit 88 includes a resonance circuit whose resonance frequency changes depending on the change in electrostatic capacitance between an electrode of the pick-up pin 69 and the plate 55 due to the intermittent pits. Furthermore, the acceptance circuit 88 contains a circuit for applying a constant frequency signal to the resonance circuit, a circuit for detecting the amplitude of the high-frequency signal provided by the resonance circuit, and a circuit for preamplifying the detected high-frequency signal (playback signal). The high-frequency playback signal appearing at the output of the pick-up circuit then reaches a demodulator 89 which demodulates the main information signal (in this case the video signal and the audio signal) of the main track. The demodulated signal appears at an output terminal 93. On the other hand, the high-frequency reproduction signal is fed from the pick-up circuit 88 to band-pass filters 91 and 92 and a detector 90. The band-pass filters 91 and 92 have characteristics such that they only select and amplify the frequencies of the reference signals fp 1 and fp2 in terms of frequency. The reference signals fp 1 and fp2 appearing at the outputs of the bandpass filters 91 and 92 then reach the first and second input terminals of a gate circuit 94, respectively. The detector 90 makes a frequency selection with respect to the reference signal fp3 and generates an envelope detection signal corresponding to the reference signal fp3. The detector 90 self-generates a detection signal which is in phase with the envelope detection signal of the reference signal fp3 which has occurred so far in the event that the reference signal fp 3 is no longer present due to a signal dropout or the like. This detection signal is fed to a switching pulse generator 95.

The gate circuit 94 is controlled by one of the switching

pulse generator 95 is switched over if the switching signal has a high signal value, for example on, the output signals of the band pass filters 91 and 92 are applied to the input terminal independently of each other of the detector 97 or to the input connection of the detector 98. In contrast, has the switching signal When the signal level is low, the output signals of the band pass filters 91 and 92 also become independent from each other to the input terminal of the detector 98 and the input terminal of the detector 97, respectively fed.

The polarity of the switching signal of the switching pulse generator 95 is reversed when a detection signal from the detector 90 or a kick pulse (excluding a kick pulse supplied during the reproduction of the reference signal fp 3) from a kick pulse generator 96 occurs. In this way, the detector 97 provides an envelope detection signal from the reference signal originating from a track on the outside of the track to be reproduced. In a corresponding manner, the detector supplies an envelope detection signal of that reference signal which originates from a track on the inside of the track to be reproduced. These envelope detection signals from detectors 97 and 98 are fed to a differential amplifier 99 which is provided in a downstream stage of the arrangement described. The differential amplifier 99 therefore provides a tracking error signal at its output with a polarity which corresponds to the direction of the tracking error and with an amount which corresponds to the amount of the tracking error. This tracking error signa! reaches the tracking reel 85 via a tracking circuit 100 in which the tracking error signal is converted into a predetermined drive voltage in order to control the tracking reel 85. As a result, the pickup pin 69 is moved in the radial direction of the disk 55 in terms of direction and amount so that the tracking error becomes zero. Therefore, the pick-up pin 69 precisely follows the spiral-shaped track T on the 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) and to an audio signal reproducing system known per se (not shown) via the output terminal 93. In these systems, the main demodulated information signal is converted into a color video signal Standard television system and converted into an audio signal. The color video signal obtained in this way and the audio signal obtained in this way are then sent to a surveillance television receiver (not shown). In addition, the output signal of the demodulator 89 is sent to a microprocessor 101.

An explanation will now be given relating to each part of a reproducing device which reproduces the control program signal in the disc player, and which relates to every part of a reproducing device which reproduces the control program signal in the external device, in accordance with those in the Operations occurring during playback. In the event that the external device 61 is the computer 62 intended for personal use, for example the computer shown in FIG. 18, the disk language interpreter or the disk language interpreter program, which is pre-stored in an external storage device, for example a cassette tape or a floppy disk, is loaded into the computer 62. This disc language interpreting program is a routine for interpreting the instructions of the control program reproduced from the disc 55 into instructions (commands) of a machine language which the computer 62 can understand. Regardless of the type of disk 55, it suffices to prepare or provide some type of disk language interpreting program with respect to one type of computer. That is, a control program taken out of any kind (informational content) from disk 55 and reproduced can be decoded in the personal computer 62 by providing only one kind of external storage device in which a disk language interpreting program is pre-stored, which is in accordance with the calculator 62. It also means that the control program recorded on the disk 55 can be written in a predetermined kind 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? which come from different manufacturers. The PLite language interpreter is written in machine language so that processing can be completed within a short period of time in spite of the limited processing speed of the personal computer 62.
When the user enters the disk 55 into the video disk player 56 according to FIG. 17, the video disk player 56 is automatically brought into the playback mode. The signal modulator 110 has a structure including the demodulator S9 shown in FIG. The tracking error signal is fed to a tracking servo arrangement 111 which contains the tracking reel 85 and the like according to FIG. 6. The reproduced video signal and the reproduced audio signal, both appearing at the output terminal 93, pass to a television monitor 113 and a loudspeaker 114, and r: was under the control of an output controller 112. The reproduced video and audio signals are also supplied to a control program demodulator 115. The modulated signal, which has been modulated by the control program signal and is now fed to the control program demodulator 115, as well as the second-channel audio signal which is applied to the output control device 112, are optionally output by a circuit in the signal modulator 110. This circuit of the signal demodulator 110 is shown in FIG.

The signal appearing at the output connection 93 is fed to an input connection 150 shown in FIG. 19. From this input connection 150 the signal passes to a bandpass filter 151, in which the frequency-modulated signal f _A 2 is frequency-selected. The initial signa! of the band-pass filter 151 is subjected to frequency modulation (FM) detection in a detection circuit 152. The modulated signal, which has been subjected to two-phase marker modulation by the control program signal, or the second-channel audio signal appear at the output of the detection circuit 152! This output signal of the detection circuit 152 is detected by a de-emphasis

sis circuit 153 and then comes to a Connection 154a of a circuit 155.

The address signals Ac, Ar and An, which are multiplexed in the vertical blanking period of the video signal within the reproduced signal appearing at the output terminal 93, are separated and supplied to a 29-bit shift register 157 through an input terminal 156. The reproduced vertical sync signal is applied to an input terminal 158. This reproduced vertical synchronizing signal clears the shift register 157 and simultaneously with its leading edge makes a presetting at the input PR of a D flip-flop 159 (flip-flop of the delay type). The output Q of the flip-flop 159 therefore assumes a high value, and this high value at the (^ output opens the gate of a NAND circuit 160. Thus, starting with the time at which the leading edge of the reproduced vertical sync signal is received, the clock signal component in the reproduced address signal present at an input terminal 161 pass via the NAND circuit 160 as a shift pulse to the shift register 157. Thus, the reproduced address signal present at the input terminal 156 is successively shifted to the left in the shift register shown in FIG.

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 Ac, A τ and As assume a common value "C" in hexadecimal notation. The 2-bit line discrimination codes that follow the respective synchronizing signal differ for each of the address signals ^ c, A ₇ - and A \. The line discrimination or line discrimination code 51 of the address signal / ■ / V ^ SuSgi wviSpivijn ^ ijv »\ si \\. i-mv. lirvnu-OVlldHUllg 165 therefore only supplies a detection signal with a low value when all bits of the 29-bit address signal Αλ / ιπ the shift register 157 are loaded. This detection signal from the NAND circuit 165 reaches a clock input connection Ck of the D flip-flop 159 and to the clock input connection Ck of a further D flip-flop 166. The data input connection D of the flip-flop 159 is grounded or connected to ground. On the other hand, the data input terminal D of the flip-flop 166 is supplied with the ninth bit of the shift register 157. The (^ output of the flip-flop 159 assumes a low value from a point in time when the above detection signal is provided from the NAND circuit 165. The (J -Output of the flip-flop 159 appears to the NAND circuit 160 and closes the gate, so that the further supply of the shift pulse to the shift register 157 is suppressed. At the same time, the data value in the ninth bit of the reproduced address signal An appears at the Q output of the flip-flop 166. This (^ output of the flip-flop 166 is fed to the circuits 154 and 155 as a switching signal.

As previously in connection with FIG. Explained 11, the ninth bit contains the address signal to the distinguishing or discriminating signal indicating the presence of the control program signal when the ninth bit of the address signal transformants value "has 1" is thus indicated that a recorded control program signal is present, when the (^ - If the output of flip-flop 166 assumes a low value ("0"), the movable contacts of circuits 154 and 155 are connected to terminals 154a and 155.7. On the other hand, if the (^ output of flip-flop 166 has a high value ("1") ), the movable contacts of the circuits 154 and 155 are connected to the connections 1546 and 155i>. Thus, if the reproduced second-channel audio signal appears at the output of the de-emphasis circuit 153, this reproduced audio signal is passed on via the switch or circuit 154 passed to a noise suppression circuit 167, which carries out signal processing in a manner known per se in order to detect noise or noise to reduce disruptions. The output signal of the noise suppression circuit 167 is applied to an output terminal 168. When the modulated signal which has been modulated by the control program signal appears at the output of the deemphasis circuit 153, this reproduced modulated signal is fed to an output terminal 169 via the switch or circuit 155.

F i g. 17 it can be seen that the reproduced modulated signal appearing at the output terminal 169 is fed to the control program demodulator 115 in the interface box 57, to be precise together with the reproduced video signal which the signal demodulator 110 provides. The control program demodulator 115 has a structure as shown in FIG. 20A is shown. The structure of this SieuerprograiTimdemodulator 115 is to be explained below. The reproduced modulated signal is applied to an input terminal 170 shown in FIG. 20A and is passed from there to a decoder 171 which demodulates the reproduced modulated signal into the reproduced control program signal. The reproduced vertical sync signal and the reproduced horizontal sync signal are also supplied to the decoder 171. This reproduced Ver tiiCäi- ünu ι lOnzontaiäynCnroriSignaiC wc "viCPi ϊΓί a sync signal separation circuit 173 separated from the reproduced composite color video signal or color video signal mixture, which reaches the separation 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, reference is made to the flow chart according to FIG. 21 referenced. Thereafter, at step 51, it is determined whether the vertical synchronizing signal is present. If there is a vertical sync signal, variables A, B and C are deleted,

so and at the same time the horizontal sync sign? ^{1 is} counted. This is done at a step 52. At a step 53, the scanning line number 21 H (284W) is detected. The scanning line number 21 // (284 //; Scan line number 21H (284H) is recorded as described earlier.

Next, at step 54, an incoming horizontal sync signal is detected or sensed. At a step 55, the variable C = B and the variable B = A are set, and also the variable A is set to the value ("0" or "1") of the data in the scan line number 21 // (284W) Step 56 is again determined whether an incoming horizontal synchronization signal! is present, if an incoming horizontal synchronization signal is present again, the variable C = B and the variable B = A and the variable A are set to the value of in a step 57

Data in scan line number 22H (285 H) . The data in the reproduced control program signal is a square wave obtained by waveforming the signal shown in Fig. 9 (D). The logic values "0" or "1" of the data in the reproduced control program signal are in phase with the reproduced horizontal synchro signal. Three continuous sampling outputs obtained in accordance with the phase of the horizontal sync signal do not take the same value. If two continuous scan outputs that are scanned with the horizontal scan period have the same value, the logical value "0" is displayed. On the other hand, if these two continuous sampling outputs have different values, the logical value "1" is displayed. This follows clearly from the representations according to FIG. 9 (A) and 9 (D).

At a step 58, 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, a decision is made at step 59 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, a step S10 examines whether the values of the variables A and B coincide with each other. If the values of the variables A and B agree with each other, it is decided at a step 511 that the data value is "0". If the values of variables A and B do not match, a step 512 determines that the data value is "1". An operation similar to that described above is then repeated until it is determined at a step 513 that the end of a block has been reached.

The decoder 171 which performs the above-described operation can also be provided by a device shown in FIG. 22 illustrated digital circuit can be realized. One in Fig. Input terminal 190 shown in FIG. 22 is supplied with a modulated signal which has been subjected to self-clock modulation with the control program signal reproduced from disk 55. This modulated signal is waveformed in a comparator 191 and then reaches 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 is produced. 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 1%. The counter 197 provides an output at the scan line number 21 // (2MH). 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 upon the occurrence of the vertical synchronization signal thus The reproduced horizontal synchronizing signal reaches the clock terminals CK of the flip-flops 192 to 194, where it acts as a clock pulse from the Time from when scan line number 21H (284H) occurs to the time of occurrence of the vertical sync signal. 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 scan outputs have different values during a time 2H , a signal appears at the output terminal 204 which indicates a data value of "1".

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 on

ίο NRZ signal (recording signal or return to the initial state). This NRZ signal is successively supplied to eight 14-bit shift registers 174-1 to 174-8 which are connected in series. On the other hand, the reproduced vertical sync signal provided by the sync separator circuit 173 appears at an output terminal 175. The reproduced horizontal sync signal also provided by the sync separator circuit 173 is frequency-divided in a frequency divider J76 at a ratio of 5/2. The frequency-divided output signal of the frequency divider 176 is fed as a shift clock signal to the shift registers 174-1 to 174-8 in parallel. In addition, the output signal of the frequency divider 176 reaches an 8-bit shift register 177. The shift registers 174-1 to 174-8 form a circuit part! which performs such an operation that the rearrangement of the data explained in connection with FIGS. 6A and 6B is canceled by rearrangement and the data are brought into their original order. 1-bit data B 0 to B 7 appear at the outputs of the shift registers 174-1 to 174-8 and are fed to an error correction ROM table 182 in parallel. The data value occurring at the output of the shift register 174-8, i.e. the data value occurring in the last stage of the eight shift registers 174-1 to 174-8 connected in series, is also applied to the 8-bit shift register 177, which contains the data of a series - Subjecting to parallel implementation. The parallel output signals of the shift register 177 reach a comparator

179. The comparator 179 compares the data of the shift register 177 with a predetermined frame code pattern, which is pre-stored in a memory 180 when the two are fed to the comparator 179 8-bit signals coincide with each other, it is determined that the one shown in FIG. 7 frame code shown has been reproduced, and the comparator 179 supplies a frame code detection signal. This frame code detection signal arrives at an output terminal 181 in FIG. 2OB shown memory address generator 185

The error correction ROM table 182 is used, in a manner known per se, using the check bits b 5 to b 8 according to FIG. 4 to record and correct errors in the 8-bit data supplied to it. Error-corrected 4-bit information data appear in parallel bit representation at output terminals 183-1 to 183-4. If the error correction cannot be carried out, error detection data appears on a terminal 184.

The output data of the error correction ROM table 182 arrive at one in FIG. 17 shown Buffer memory and data selector 116, to be precise as output data of the control program demodulator 115. 2OB 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 that are the parts of Figures 17 and 20A correspond with the same reference numerals.

The data pending at connections 183-1 to 183-4 and 184 arrive at a device in FIG. Buffer memory 116a shown in 2OB. On the other hand the memory address are 183, the reproduced vertical synchronizing signal Signa obtained by frequency division of Horizontalabstastfrequenz in the ratio of 1/2 through terminals 175.178 and 181! and the frame code detection signal and also a transmission request signal 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 Siaius connected to a port ί 24 originating from a disc player operation control device 122 of the video disc player 56 shown in Fig. 17, and reproduced address data (disc address) of the address signals Ar, Ah and A _c originating from the signal demodulator 110 and at a port 126 are temporarily stored in the buffer memory 116a so that the status and the disk address can be transferred at a predetermined transfer speed. 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 disk address, all stored in buffer memory 116a are read out from the buffer memory 115a and fed to a data selector 1166. The data selector 1166 forwards in accordance with a transfer request signal from a command analyzer 121, to be described, selectively further one type of data. Those from data selector 1160 selectively Forwarded data is passed to an S232C driver117 shown in Figs. 17 and 20B is. The output of the /? S232C driver 117 becomes an input terminal through an output terminal 118 129 of the personal use calculator 62 shown in FIG. The command analyzer 121 generates a transfer request and delivers this transfer request to the Data selector 1166 so that the control program that is in Buffer memory tl6a is stored consecutively from data selector 1166 to computer 62 if a command that prohibits the above-described operation is not supplied to the command analyzer 121

The /? S232C interface is a well-known standard interface according to EIA (US Electronics Industry Association) and CCITT (International Consultative Committee for Telephone and Telegraph). In the exemplary embodiment under consideration, the RS 232C driver 117 and an RS 232C receiver 120 form an ÄS232C interface circuit 205, which is shown in FIG. fifth, sixth. seventh, eighth and twentieth pins, represented by ©, ®, (D, ©, ©, ® © and @. The reproduced data and address information relating to the internal state of the video disc 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 applied to the third pin from the external device 61. The signals appearing on the fourth, fifth, sixth, seventh, eighth and twentieth pins are originally used for the Control of the modem used or decide on the status of the modem. In the embodiment under consideration, however, the signals on the fourth and fifth pins are used to control the transfer operation of the video disc player 56 with respect to the external device 61. If the signal on the fourth pin assumes a positive polarity, means that is, there is a request for the video disk player 56 with a transmission from the video disk player 56 to the external device 61 to begin. 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 signal of positive polarity. If both of these conditions are met, a transmission from the video disc player 56 to the external device 61 takes place using the second pen.

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 56 is in a receiving state, appears on twentieth pin a signal with positive polarity. When the external device 61 in a ready to transmit 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 data received by an RS232C receiver 130 shown in FIG. 18 are supplied to a data selector 131. The receiver 130 is located in the computer 62, which can be used as an external device 61, for example. The signals fed to the data selector 131 are additionally 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 memory with a choice between a status memory 132, a control program memory 133 and a disk address memory 134. If the data supplied is a status, get these data to memory 132 and are stored there. If the data is a control program, the data is sent to the memory 131 and is stored there. If the data relates to a disk address, the data is transmitted to the memory 134 and stored there. As previously described, a control program interpreter 135 is loaded into the computer 62. The status stored in memory 132, the control program stored in memory 132 and the disk address stored in memory 134 are each translated into a language that is compatible with computer 62. This language is then interpreted into commands, for example 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 operate a printer 141. In addition, the input / output control device 139 receives signals from an external device when necessary.

for example a floppy disk 142 and an interactive mode connection device CMT 143, or stores signals in these external devices. When the incoming command requests information from an input device, for example from a keyboard 136, a joystick 137 or a panel 138, the user operates the input device in accordance with the request. Depending on such operations by the user, the signals which are supplied to the output devices, for example the cathode ray tube 140 or the printer 141, are controlled by the input / output control device 139. Furthermore, a command which controls the disc player is generated and passed through cinsn player control command converter 144, a /? 5232C driver 145 and an output port 146. This command arrives at the A5232C receiver 120 in the interface box 57 via an input terminal 119.

The command received by the RS liZC receiver 120 is passed to the command analyzer 121. The command analyzer 121 carries out the operations described in connection with the flow charts according to FIG. 24A, 24B, 24C and 24D, and provides an output signal to the player operation control device 122. Further, the command analyzer 121 generates the transfer request signal and supplies this transfer request signal to 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 step 520 of FIG. 24A indicates the presence of an incoming Command checked. If there is an incoming command, steps 521 to 524 follow in sequence checks whether the incoming command is a transfer request command, an output switch command Searchbcfch! or a speed change command! is. There is a return to step 520 if the incoming command does not contain any of these four commands matches. If the incoming command is a transfer request command sequentially at steps 525-527, whether this transfer request command is a Address transfer request, a status transfer request, or a control program transfer request is. Is the transfer request command one of these three requests? becomes the transmission request signal described above at any one of steps 528 to 530 corresponding to the detected transfer request command, and the command is executed. Thereafter there is a return to step 520.

If the incoming command is an output switching command, if a command is shown in FIG. Step 31 shown in Fig. 24B checks whether the signal to be switched is the video signal. If the video signal is to be switched, it is determined in a step 532 whether or not a noise block is to be effected . On the other hand, if the signal to be switched is not a video signal, it is determined in step 531 that the signal to be switched! the audio signa! At steps 535 to 540 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 the first-channel audio signal A and the second-channel audio signal B should be exchanged with one another, and the commands are then executed as a function of these decisions 538 to 540 are made with respect to the disc player operation control device 122. The disc player operation control device 122 generates an output switch request signal corresponding to these commands, and supplies this output switch request signal to the output control device 122 to control this device.

If the incoming command is a safety command, the command analyzer 121 checks at steps 541 to 543 according to FIG. 24C, whether this search command is a chapter search, a time search or a Track search concerns. If the search command does not match any of the three search options offered, a return is made to step 520. Otherwise, if Correspondence of the search command with one of the three search possibilities is determined with steps 544 to 546 the disc player operation control device 122 is controlled so that the appropriate search operation is carried out. This is followed by another Return to step 520. The disc player operation controller 122 generates a servo control request signal and supplies this servo control request signal to the tracking servo arrangement Ul.

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 corresponding to the difference between the reproduced address signal of the commanded type and the set destination address signal. It also turns on or off the tracking control operation and the like. The Platter.spielercperationssteuervorrichtung 122 extracted in the case of Chapter Search only the address signal Ac - ¹ JS the output of the signal demodulator 110, in the case of time search only the address signal At and in the case of tracing only the address signal arrival

If the incoming command is a speed change command is, the command analyzer 121 checks at a step s 51 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 disc player 56 is in the still picture reproducing mode, a step 554 turns on

the corresponding command signal is given to the control device 122, and there is then a return to the Step 520. If the video disc player 56 is not performing still picture playback, the process of steps 552 to 560 determine whether the direction of advance or direction of movement of the signal pickup device 68 in the forward direction (e.g., 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 closes according to the determined result, a direction command cn, and es 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 554 to 556,559,560 and The like is done with respect to the control device 122. The control device 122 is made from the microprocessor 101 of FIG. 16 or the like educated

The control program signal recorded on the disk 55 is reproduced, and the commands of the reproduced control program signals are fed to the computer intended for personal use and then passed from the computer to the video disc player 56. It takes about a period of seven fields until the video disc player 56 actually performs the operations related to the transmitted commands are based. For this reason, the control program signal is at one point or Position recorded on the disk 55 by a predetermined distance of that position on the disk 55 in which the predetermined operation based on the program is performed solL When a program is played back, the command or commands issued by the computer 62 to be transferred to the video disk player 56, beforehand in a buffer memory in the command analyzer 121 transmitted 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 provides a control signal to the disc player operation control device 122 if the reproduced address information and match the address of the stacked instruction. The video disk player 56 is therefore capable of the predetermined operation, which is in accordance with the stacked instruction with an extremely short To set a time delay from when it reaches the predetermined position on the plate 55 will. In this case, predetermined signal processing is carried out during one field in which the reproduced address information having a predetermined value is obtained, and the video disc specicf 5β can uie v ^ perstion ausiUnrcn, uic aui ucm stacked command of the following field is based. The time delay is therefore only one field.

As previously explained, the video disk player 56 performs various operations by clicking on the Based on control commands transmitted from computer 62 to video disc player 56, the pick-up pin is moved. For example, the pick-up pin at high speed to a predetermined Track position can be moved 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 displaying the reproduced image and to a loudspeaker 114 presenting the reproduced sound. At the same time, it is possible to use the of the disk 55 recorded control program and play it back. As a result of this you can Commands are bidirectionally transmitted between the disk player 60 and the external device 61, and it is possible to perform mutual reproduction.

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 total industry, a 211 report on heavy industry, a 212 report on lead industry, a report 213 on the chemical industry and a report 214 on the future outlook. It is assumed that the reports are recorded in a time-sequential manner over 10,000 tracks each are. It is also assumed that a control program signal that the user has the selection a search operation is permitted at a position a with a track address »200« recorded the immediate

! 0 bar precedes the overall report 210 and at a position b with a track address "9700" at which the recording of the overall report 210 has ended. Furthermore, it is assumed that a control program signal which allows the user to select one of the reports 211 to 213 and a Search for the beginning of the selected report enables recorded at position b Finally, it is also assumed that a control program signal has been recorded which enables the user to search for positions / to h at which the recording of the respective reports 21 ί to 213 has ended to make a selection as to whether a jump should be made back to position b , whether the report 214 should be played back or whether a jump should be made to an end position j at which the recording is ended

In this case, the control program that is reproduced at track address "200" and in a Intermediate language with the following statement, for example, "If the Enter key $ equals" N ", then search 9700 «is written, subjected to signal processing including error correction and the like, as explained above, and then fed to the computer 62 via the ftS232C driver 117 Computer 62 decodes the control program supplied to it and pre-detects the input. the keyboard 136. If the input from keyboard 136 is the letter "N", computer 62 generates a "Find" command 9700 ", which means that the track address" 9700 "is to be searched for. This command »Search 9700« becomes via the Ä5232C driver 145 to the interface box 57 supplied If the command analyzer 121 decodes this command upon receipt of this command, the Control device 122 causes this search command to be carried out. In this operating state, the signals recorded on disk 55 immediately following the position at which this command is reproduced is recorded up to the position immediately before the track address "9700" is not played.

On the other hand, if the input from keyboard 136 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 10 000, Search 20,000, search 30,000 «is reproduced. This control program enables one of the reports 211, 212 or 213 to play back optionally. If the input from the keyboard 136 equals "1", the computer delivers 62 a command "search 10,000" to the interface box 57. Likewise, the computer 62 delivers the Commands "Search 20 000" and "Search 30 000" to interface box 57 if the input is from the Ta-keyboard 136 is equal to "2" or "3". Operations are then carried out that are similar to the operation described above are. Further such operations can then be carried out.

31

The invention is not restricted to the exemplary embodiments described. It can also, for example 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 or transmitted by the plate, whereby a beam of light is thrown onto the plate. The invention can also be applied to a case where only a single-channel audio signal exists. Furthermore can use the control program signal independently in an intermittent manner in place of the second-channel audio signal to be recorded.

Although it is shown in FIG. 8 is not shown, can on the A noise reduction circuit may be provided on the output side of each of the audio signal sources 27 and 28, and on the output side of the circuit 31 there may be a pre-emphasis circuit.

In addition 20 sheets of drawings

25th

30th

40

45

50

55

60

Claims (6)

Patent claims identified by this: 1. Signal recording arrangement for the simultaneous recording of video and audio signals on a rotating recording medium, containing a recording device for recording a modulated control program signal band-limited to the band of the audio signal with the video signal, wherein the control program signal is time-sequential together with the video signal is recorded with the audio signal or instead of the audio signal and by modulation has emerged from a digital control program signal that controls input and output commands and internal processing instructions for interacting with an external device contains, which is used with a playback device for playing the rotating recording medium connected is, draws, that the signal recording arrangement further includes: a modulation device '(26,34,36,37,29) for modulating the control program signal on the basis of a reference clock signal with a frequency f _H / n, where Λ / corresponds to the horizontal scanning frequency of the video signal and π is a natural number, and
a band limiting device (30) for limiting the band of the modulated control program signal * occurring at the output of the modulating device to the band of the audio signal and
that the recording device (26 to 28, 31 to 45,22) together with the video signal the modulated control ⁿ ro ^(T ranims! ' ^T na! zeitse ⁿ uentisi! with your audio signal or instead of the audio signal synchronously with the horizontal synchronizing signal of the video signal records 2. Arrangement according to claim 1, characterized in that the modulation device is the control program signal self-clock modulation and that the modulated signal has one bit period which is a natural number multiple of the horizontal scanning period of the video signal is. 3. Arrangement according to claim 1, characterized in that the control program signal in units of blocks is recorded and that each of the blocks is of a fixed length and within a predetermined period of time is transmitted, which is less than the duration of a field of the video signal and takes a period of time approximately equal to the vertical blanking period of the video signal is equivalent to. 4. Arrangement according to claim 2, characterized in that the band-limited modulated signal from the tape limiting device on the rotating recording medium from the recording device is recorded so that the phase is modulated by peak values of the band-limited Signal essentially correspond to the phase of the horizontal sync signal in the video signal. 5. Arrangement according to claim 1, characterized in that the video signal on the rotatable Record carrier is recorded in a state after which the video signal within a predetermined video signal period is multiplexed with an address signal which is track position information contains, and that in a part of the address signal, a signal is inserted which contains information about the existence of a recorded control program 6. Arrangement according to claim 1, characterized in that the control program is in an intermediate language written in accordance with a predetermined format and that the format the intermediate language of the format of a ίο regarding the external device with the distinguishing function originally set language is different 7, Rotating recording medium on which a signal is recorded by means of a signal recording arrangement for the simultaneous recording of video and audio signals, wherein the signal recording arrangement contains a recording device for recording a modulated control program signal band-limited to the band of the audio signal together with the video signal and wherein the control program signal together with the video signal has been recorded sequentially with the audio signal or instead of the audio signal and has emerged by modulation from a digital control program signal which contains input and output control commands and internal processing commands for interacting with an external device which is connected to a device for playing the rotating recording medium serving playback device, characterized in that the modulated control program signal recorded on the rotating recording medium by modulation on of the control program signal on the basis of a reference clock signal with a frequency fu / n , where /// corresponds to the horizontal scanning frequency of the video signal and η is a natural number, and that the recording of the modulated signal, made together with the video signal in time-sequential fashion with the audio signal or instead of the audio signal Control program signal is executed synchronously with the horizontal sync signal.