JPH0258765A - Recording and reproducing system - Google Patents

Abstract

PURPOSE:To display the picture corresponding one choice selected out of plural choices by a simple operation by reproducing two-dimensional pictures and code patterns on the same displaying screen and photoelectrically converting at least one of the code patterns into an electric signal so that the playing form of a recording medium can be selected by means of the electric signal. CONSTITUTION:Two-dimensional pictures 21a-21d and code patterns 22a-22d are reproduced on the same displaying screen 11 by means of read video format signals obtained when a recording medium 2 is played and at least one of the code patterns 22a-22d on the screen 11 is photoelectrically converted into an electric signal. The electric signal is used for making controlling operations including the selection of the playing form of the recording medium 2. Therefore, when the code patterns 22a-22d on the screen 11 is scanned with a scanner 19, the controlling operations can be performed without using a position detecting means, such as a digitizer, etc. Thus the picture corresponding one choice selected out of plural choices can be displayed by a simple operation.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a recording/reproducing method for recording and reproducing information on a recording medium such as a video disk or a video tape.

BACKGROUND ART For example, in a video game using a video disc, a plurality of choices are displayed on the screen of a display device such as a CRT display, and data indicating the selected one of these choices is displayed by key operations on a keyboard. A recording/reproducing method that allows manual input to read and reproduce information recorded at a recording position on a video disk corresponding to input data is already known.

However, keyboard operations are complicated and sometimes require you to take your eyes off the display screen in order to perform keyboard operations. It has been considered to be possible to input data indicating a selected option simply by touching one of a plurality of positions with a finger. However, in this case, a position detecting means such as a digitizer or the like must be provided near the screen of the display device, which is not preferable.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a recording/reproducing method that enables displaying an image corresponding to one selected from a plurality of options by a simple operation without using a position detecting means such as a digitizer. The purpose is to provide a method.

In the recording and reproducing method according to the present invention, a video format signal carrying a two-dimensional image displaying a plurality of choices and a code pattern corresponding to each of the choices is recorded on a recording medium, and the video format signal is obtained by playing this recording medium. A two-dimensional image and a code pattern are reproduced on the same display screen according to the read video format signal, at least one of the code patterns on the display screen is converted into an electric signal by photoelectric conversion, and the obtained electric signal is used to reproduce a recording medium. The control operation includes selection of the playing mode of the music.

\ Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows an example of an image carried by a video format signal recorded on a recording medium according to the present invention.
Image 21a-21 displaying four options within the dimensional screen
d, and barcodes F22a to 22d as code patterns corresponding to each of the four options displayed by images 21a to 21d. Each of the rubber barcodes 22a to 22d represents a start frame number and an end frame number indicating the recording position on the disc where the image information and audio information related to each of the four options are recorded. Note that an apparatus for recording a video format signal that carries such an image on a recording medium is well known, so a description thereof will be omitted.

FIG. 2 shows an information recording medium reproducing apparatus for playing a disc as a recording medium according to the present invention. In the figure, in a performance section of a video disc player as an example of an information recording medium reproducing apparatus, a video disc 2 is rotated by a turntable (not shown) rotated by a spindle motor. It is well known that there are two types of video discs: CAV and CLV. It goes without saying that the present invention is not limited to video discs, but also so-called compact discs and other information recording discs. The pickup 3 is carried by a slider (not shown) that is moved in the radial direction of the turntable by a slider motor 4, and the information detection point (reading spot in the case of an optical type) of the pickup 3 is located on the disk 2.
can be freely positioned in the radial direction. Further, various servo systems such as a spindle servo system, a tangential servo system, and a tracking servo system are provided, but they are not shown because they are already well known.

The so-called RF multiplied signal obtained from the pickup 3 is divided into an audio channel component and a video channel component by a first filter 5 that passes only the audio channel component and a second filter 6 that passes only the video channel component, and is demodulated into first and second demodulation, respectively. The circuits 7 and 8 demodulate the audio signal and the composite video signal, and the audio playback processing circuit 9 and video playback processing circuit 10 convert the signals into L and R channel audio signals, which are output to the R channel terminal as video signals. Supplied to a monitor screen display.

From the composite video signal, so-called V sync, H sync and other control signals are separated and extracted by a signal separator 12 and supplied to the CPU 1B as a control means. CPU13
is R by inputting a command from the operation unit 14 such as a keyboard.
After performing calculation operations based on data or programs stored in the memory 15 such as OM or RAM, control commands are supplied to the audio playback processing circuit 9, video playback processing circuit 10, and performance section control circuit 16. In addition, a barcode 22 displayed on the screen of the monitor 1 can be read by a scanner 19, and the code signal from the scanner 19 is detected by a detector 20 and sent to the CPU.
13.

The CPU 13 decodes the code signal obtained from the scanner 19 and instructs the performance section control circuit 16 to play, pause,
It supplies command signals such as frame advance and search, and also supplies on/off commands, monaural/stereo designation commands, or status quo maintenance commands to the audio playback processing circuit, and supplies on/off commands or status quo maintenance commands to the video playback processing circuit. Provide instructions.

The scanner 19 is formed as shown in FIG. In the figure, a spherical lens 32 is fitted into the tip of a case 31. The screen 1 of the monitor 11 is attached to this lens 32.
When the light emitted from 1a is incident, it is guided to the phototransistor 34 via the glass fiber 33. This phototransistor 34 forms a signal corresponding to the intensity of light emitted from the screen of the monitor 11, and
A code signal corresponding to the barcode displayed on the screen can be obtained. The output of the phototransistor 34 is connected to the lead wire 3.
5 to the detector 20.

The operation of the CPU 1B in the above configuration will be explained with reference to flowchart 1 in FIG.

When a play operation is commanded by a key operation on the operation section 14, the CPU 1B sends a play command signal to the performance section control circuit 16 to start the play operation (step S1), and the CPU 1B sends a play command signal to the performance section control circuit 16 to start the play operation (step S1). The play operation is stopped by determining whether or not the current frame to be displayed is a frame in which a still image playback operation is to be performed, as indicated by data previously stored in a predetermined area of the ROM in the memory 15, and by pressing the key on the operation unit 14. The determination as to whether a command has been given or not is repeatedly performed (steps S2 and S3).

When the CPU 1B determines in step S2 that the current frame is a frame for which a still image playback operation is to be performed, the CPU 1B sends a still image playback command signal that instructs the performance section control circuit 16 to perform a still image playback operation (step S4); Step S
When it is determined in step S3 that the stop of the play operation has been commanded, a stop command signal is sent to the performance section control circuit 6 to instruct the stop of the play operation (step S5).

After executing step S4, the CPU 13 takes in the signal from the detector 20 and repeatedly determines whether or not a code signal has been input by scanning the barcode (step S6), and it has been determined that a code signal has been input. The end frame indicated by the time code signal is written to a predetermined location in the RAM in the memory 5 (step S7). Next, the CPU 1B sends to the performance section control circuit 16 a still image stop command signal that commands to stop the still image playback operation and a search command signal that commands to search for the start frame indicated by the code signal (step S8).
It is repeatedly determined whether the search has ended (step S9). When the CPU 13 determines that the search has ended, it sends a play command signal to the performance section control circuit 16 to start the play operation (step 510).

Thereafter, the CPU 13 repeatedly determines whether or not the current frame indicated by the control signal from the signal separation circuit 12 matches the end frame written in a predetermined location of the RAM in the memory 15 (step 511).
, when it is determined that the current frame matches the end frame, a play operation stop command signal is sent to the performance section control circuit 16, and a restart frame is issued, which is indicated by data previously stored in a predetermined area of the ROM in the memory 15. A search command signal for commanding a search is sent out (step 512). Thereafter, the CPU 13 repeatedly determines whether or not the search has ended (step 813), and when it is determined that the search has ended, the process returns to step S1.

Through steps S2 and S4 in the above operation, an image such as the list of karaoke song titles shown in FIG. 1 is reproduced as a still image on the screen of the monitor 11. At this time, barcode 22
A code signal is obtained by bringing the lens 32 at the tip of one scanner into contact with one of a to 22d that corresponds to the selected option (i.e. song title) and moving it in a direction perpendicular to each bar of the barcode. . Then, in steps 86 to S9, a search is made for the start frame of the recording area of the disc 2 in which image information and audio information related to the selected one of the four options displayed by the images 21a to 21d are recorded. and step S10
, S11, image information and audio information related to the option selected are reproduced.

Incidentally, in the above embodiment, the video format read from the recording area of the disc 2 indicated by the code signal obtained by one of the plurality of barcodes scanned by the scanner out of the plurality of barcodes corresponding to the plurality of options respectively. It is assumed that a signal is supplied to the monitor 11, but a video format signal is generated using a character generator or the like, and the video format signal responsible for the character pattern forming the sentence corresponding to the code signal is generated, and the generated video format signal is monitored. It may also be supplied.

Further, in the above embodiment, the barcode is read by a scanning type barcode reader, but the barcode may be read by a contact type barcode reader. However, in that case, it is necessary to make the area of the contact portion large enough to cover the entire barcode, and to provide a CCD type image scanner or the like inside the barcode/reader.

Effects of the Invention As detailed above, in the recording and reproducing method according to the present invention, a video format signal carrying a two-dimensional image displaying a plurality of choices and a code pattern corresponding to each of the choices is recorded on a recording medium. A two-dimensional image and a code pattern are reproduced on the same display screen by a read video format signal obtained by playing a recording medium, and at least one of the code patterns on the display screen is converted into an electric signal by photoelectric conversion. Control operations, including selection of the performance mode of the recording medium, are performed using electrical signals generated by the recording medium. Therefore, according to the recording/reproducing method according to the present invention, one of a plurality of options can be selected by simply scanning the code pattern on the display screen with a scanner or the like without using a position detecting means such as a digitizer. It is possible to display images corresponding to the

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an example of an image carried by a video format signal recorded on a recording medium using the recording and reproducing method according to the present invention, and FIG. 2 is a diagram showing an example of an image carried by a video format signal recorded on a recording medium using the recording and reproducing method according to the present invention. FIG. 3 is a block diagram showing an information recording medium playback device for playing a disc of
FIG. 4, which is a sectional view showing the configuration of the scanner 19 in the device shown in the figure, is a flowchart showing the operation of the CP013 in the device shown in FIG. Explanation of symbols of main parts 2...Video disc 19...Scanners 22a to 22d...Barcode 47 Figure

Claims (3)

[Claims] (1) A video format signal carrying a two-dimensional image displaying a plurality of options and a code pattern corresponding to each of the options is recorded on a recording medium, and a read video format signal obtained by playing the recording medium is used. Said 2
reproducing a dimensional image and a code pattern on the same display screen, and displaying at least one of the code patterns on the display screen;
1. A recording/reproducing method characterized in that the information is converted into an electric signal by photoelectric conversion, and the obtained electric signal performs a control operation including selection of a performance mode of the recording medium. (2) A recording medium that records a two-dimensional image displaying a plurality of options and a video format signal carrying a code pattern corresponding to each of the options. (3) a playing means for playing a recording medium and demodulating a read signal obtained from the recording medium to obtain a video format signal and reproducing it on a display screen; and converting the optical pattern on the display screen into an electrical signal. What is claimed is: 1. A recording medium playing device comprising: photoelectric conversion means capable of converting the electric signal; and control means controlling the playing means in response to the electric signal.