JP2000013678A - Recording and reproducing device and computer readable storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To recognize a program watching currently in the case of starting to record a 2nd program in a hard disk, etc., while watching a 1st program of digital television broadcasting, starting reproduction with delay during the recording and switching the 1st program and the 2nd program that is reproduced with delay thereby watching them. SOLUTION: A 1st program signal from a tuner part 3 is processed and shown through a switch 107. Also, a recording and reproducing part 105 starts to record a 2nd program signal in a storage device 127 and starts to reproduces it with delay. The reproduced 2nd program and the 1st program are switched by the switch 107 and are shown. In such a case, headers of the 1st and 2nd program signals are separated, those time information are compared with each other and the time difference between them is shown together with the programs. Also, a reproduction position when reproduction stops is stored in a memory 125 and when the 1st program is switched to the 2nd program, reproduction is started at the stored reproduction position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus suitable for performing delayed reproduction using a recording medium capable of simultaneous recording and reproduction.

[0002]

2. Description of the Related Art In recent years, digital broadcasting has attracted attention as a next-generation broadcasting system. With the digitization of broadcasting systems, television receivers have become easier to incorporate various functions. Among them, a delay playback device which incorporates a storage device such as a hard disk which has a high speed and a large capacity, has a high random access speed, and can simultaneously read and write, and uses this storage device as a delay device has been developed. ing.

[0003] This delay reproduction apparatus allows a user to reproduce and watch a program that is currently being broadcast with a delay of a certain time. Thus, for example, when a sports broadcast is extended, the sports broadcast is viewed as it is, a drama or the like broadcast simultaneously on another channel is recorded in the delay playback device, and after the sports broadcast ends, the recording is continued while continuing the recording. By playing back the recorded program from the beginning, the currently broadcast program can be viewed with an arbitrary time delay.

A program recorded by a delay playback device is
Special reproduction functions such as slow reproduction and search reproduction can be provided, and the program can be displayed as if the currently broadcast program can be specially reproduced.

FIG. 6 is a diagram showing a conventional example of a delay reproduction apparatus. 6, a digital broadcast signal received from an input terminal 301 is tuned to a tuner section 303 by a control signal output from a controller 317, in a tuner section 303, for a program to be currently viewed and a program to be recorded. The program signal to be recorded is output to the recording / reproducing unit 305 and recorded in the storage device 319.
The program signal that the user wants to watch now is the terminal b of the changeover switch 307.
Output to Note that the bit stream format of the digitized program signal output from the tuner unit 303 is H2 standardized by ITU-T.
22 and the like are known. As the image signal and the audio signal, a signal compressed by the MPEG2 system or the like is used.

The recording / reproducing section 305 starts reproduction with an arbitrary time delay by a control signal output from the controller 317 while recording the input program signal to be recorded, and switches the reproduction signal by the switch 307. Output to terminal a. The changeover switch 307 connects to the terminal a if the program to be displayed is a delayed reproduction program, and connects to the terminal b if the program currently being broadcast is to be displayed, and outputs it to the decoder 309. .

[0007] The decoder 309 restores the compressed image signal or audio signal, outputs the restored audio signal to the speaker 313, and outputs the restored image signal to On-Scr.
ecn-Display device 311 (hereinafter abbreviated to OSD
Output). The OSD unit 311 combines the displayed program number (channel number), recorded program number, audio volume state, and the like with the restored image signal by the control signal output from the controller 317 and displays it. Output to the device 315. The display device 315 has a CR
T, a thin display device called a liquid crystal display or a PDP, and this display device 315 is an OSD device 311
The combined image signal output from the above is displayed.

[0008]

However, in the above-mentioned conventional example, it is difficult to understand the time difference between the program currently being broadcast and the program being delayed and played back. Or the program being broadcast was not recognized, and the user was easily confused. In particular, when a special reproduction operation such as fast-forwarding, rewinding, slowing, and stopping a delayed reproduction program is performed, the delay time is not constant, and the operability of the user is low.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to improve recognition of a currently displayed program.

[0010]

In a recording / reproducing apparatus according to the present invention, a first separating means for separating the first time information from a first signal containing the input first time information; Recording / reproducing means for recording / reproducing a second signal including first time information separately input together with the first signal on / from a recording medium capable of simultaneously performing recording and reproduction; A second separating unit for separating the second time information from the second signal; a comparing unit for comparing the separated first and second time information to obtain a time difference between the two; and displaying the time difference. Display means.

In the storage medium according to the present invention, a process of separating the first time information from the first signal containing the first time information to be input, and a second signal separately input together with the first signal. Processing for recording and reproducing a second signal including time information of the second on and from a recording medium capable of simultaneously performing recording and reproduction;
A program for executing a process of separating the time information, a process of comparing the separated first and second time information to obtain a time difference between the two, and a process of displaying the time difference. .

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a recording / reproducing apparatus used as a delay reproducing apparatus according to the present invention.
The digital broadcast signal received from the input terminal 101 is transmitted to the tuner unit 10 by the control signal output from the controller 117.
At 3, a program to be watched and a program to be recorded are selected. The program number to be recorded is output to the recording / reproducing unit 105 and is stored in the storage device 12 as a recording medium such as a hard disk.
7 and output to the header separator 119,
The program number you want to watch at the moment is the terminal b of the changeover switch 107
Output to

The recording / reproducing unit 105 records the inputted program number to be recorded in the storage device 127,
A control signal output from the controller 117;
Based on the readout position information of the storage device 127 output from the storage device 127, reproduction is started with an arbitrary delay, and a reproduction signal is output to the terminal a of the changeover switch 107 and to the header separator 119. The recording / reproducing unit 105
Outputs the recording start time and the recording start position information of the storage device 127 to the memory 125 at the start of recording, and the reproduction position information at the time of delayed reproduction.

On the other hand, the header separator 121 extracts the header portion of the program information which is not delayed (to be viewed at present) and outputs it to the memory 125 and outputs the header portion to the header comparator 12.
Output to 3. Further, the header separator 119 extracts a header portion from the program signal delayed and reproduced by the recording / reproducing unit 105, and converts the header information into a header comparator 123.
Output to the memory 125. The header comparator 123 compares the time information of each program output from the header separators 119 and 121, and compares the time difference with the OS.
Output to D unit 111.

In the changeover switch 107, if the program to be displayed is a program reproduced with delay, a terminal a
To display the currently broadcasted program, the terminal b is connected, and the signal is output to the decoder 109. The decoder 109 restores the compressed image signal and audio signal, outputs the restored audio signal to the speaker 113, and outputs the restored image signal to the OSD unit 111. In the OSD unit 111, the control signal output from the controller 117 combines the time difference between the currently broadcasted program and the delayed-reproduced program with the image signal of the program to be displayed, and outputs it to the display device 115. . The display device 115 is an OSD device 1
11 displays the synthesized image signal.

FIG. 2 is a diagram for explaining the contents of the memory 125. Based on the program header output from the header separator 121, at the start of recording, the name of the program being recorded, the recording start time, and the recording start position information are recorded. During recording, record while updating the recording time, and at the end of recording,
Record the recording end time. On the other hand, based on the header of the delayed-reproduced program output from the header separator 119, the currently reproduced reproduction time and reproduction position information are recorded in the memory 125 while being updated. The program name and the recording start time, recording end time, recording start position information, recording time, reproduction time, and reproduction position information are recorded as a set.

Here, when it is desired to view the delayed reproduction program from the beginning of the recorded program, the changeover switch 107 is connected to the terminal a, and the program can be reproduced from the beginning of the program based on the recording start position information in the memory 125. it can. Thereafter, when the terminal is connected to the terminal b and the currently broadcast program is displayed, the reproduction of the recording / reproducing unit 105 is stopped, and the updating of the reproduction time and the reproduction position information in the memory 125 is stopped. Next, when the changeover switch 107 is connected to the terminal a again,
Based on the last updated reproduction time and reproduction position information recorded in the reproduction position 25, reproduction can be started from the reproduction position (the reproduction stop position) that has been viewed so far. By recording in this way, if you want to play back from the beginning of the recorded program, you can search based on the recording start position information, and immediately when the displayed program switches from the currently broadcasted program to the delayed playback program. Can be played. Note that the recording memory 125 is preferably a non-volatile memory in consideration of the time when the power is turned off.

FIG. 3 is a diagram showing an example in which a time difference state between a currently broadcasted program and a delayedly reproduced program is clock-displayed. In the figure, the recording state is displayed at the 12 o'clock position,
A red circle is displayed during recording, and a black square is displayed when recording is stopped. The delay reproduction possible time is one hour, and 360
The degree is one hour. Then, when the time difference between the currently broadcast program and the delayed-reproduced program is reduced, the long hand moves clockwise (clockwise), and when the time difference is increased, it is displayed so as to move counterclockwise.

FIG. 2A shows a state where the data is reproduced with a delay of 15 minutes. (B) shows a state in which the delayed playback is stopped for about 5 minutes from (a), and the long hand returns in the counterclockwise direction for about 5 minutes, and the difference from the currently broadcast time is 2
It indicates that it is 0 minutes. (C) shows that the time difference from the currently broadcasted program is 5 minutes because the delayed playback is fast forwarded.

(D) shows a state in which fast-forwarding has been performed and the time difference from the program currently being broadcast has disappeared. In this case, fast-forwarding is forcibly stopped, and normal delayed reproduction display is performed without a time difference. At this time, the display is displayed as shown in FIG.
7 may be connected to the terminal b to display the currently broadcast program.

(F) shows a state in which recording is stopped and delay reproduction is being performed, and the time difference between the delay reproduction program and the currently broadcast program is 10 minutes. (G) shows that the time difference from the program currently being broadcast is 40 minutes by rewinding the delayed reproduction from (f).

FIG. 4 shows that the delay reproduction possible time is 12 hours, that is, 1 hour if the long hand rotates 360 degrees, and that the short hand rotates for 1 hour. The recording state is displayed at 12 o'clock, a red circle is displayed during recording, and a black square is displayed when recording is stopped. If the time difference between the currently broadcasted program and the delayed reproduction program decreases, the short hand and the long hand move clockwise, and if the time difference increases, the display moves counterclockwise. FIG. 4A shows that the reproduction is delayed with a delay of one hour and fifteen minutes. Further, if the time difference between the currently broadcasted program and the delayed-reproduced program disappears, the short hand and the long hand are directed to 12:00 as shown in FIG. 4B or 4C.

By displaying such a reproduction state and a recording state at the corners of the display screen as shown in FIG. 5,
The user can clearly recognize the difference between the time of the delayed playback and the time of the current broadcast. The reproduction / recording state display may be arbitrarily selected to be displayed / not displayed. Fast forward, fast reverse, stop,
The display may be performed for a certain period of time only at the time of special reproduction such as slow reproduction or at the time of switching the display screen.

The system using the functional blocks shown in FIG. 1 may be configured as hardware, or may be configured as a microcomputer system including a CPU, a memory, and the like. When configured in a microcomputer system,
The memory constitutes a storage medium according to the present invention. The storage medium stores a program for executing a process for performing the above-described operation. The storage medium may be a semiconductor memory such as a ROM or a RAM, an optical disk, a magneto-optical disk, a magnetic medium, or the like, and may be a CD-ROM, a floppy disk, a magnetic tape, or the like.
It may be configured and used in a nonvolatile memory card or the like.

[0025]

As described above, according to the present invention,
By comparing the time information of the currently input first signal and the time information of the second signal delayed and reproduced, and displaying the time difference between them, the recognition of the currently used signal is improved. Can be done. Further, even when the special reproduction is performed, the time difference displayed according to the reproduction speed changes, so that the correct display can be always performed, and the operability of the user is improved.

According to the second and sixth aspects of the present invention, when the delay reproduction is temporarily stopped and the first signal is used, and then the delay reproduction is resumed, the delay reproduction can be started from the reproduction stop position. it can.

According to the third and seventh aspects of the present invention, it is possible to improve recognition of a program currently being watched. Furthermore, according to the fourth and eighth aspects of the present invention, it is possible to know that delayed reproduction is performed simultaneously while recording is performed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a configuration diagram showing contents stored in a memory;

FIG. 3 is a configuration diagram illustrating a display example of a time difference.

FIG. 4 is a configuration diagram showing another display example of a time difference.

FIG. 5 is a configuration diagram showing a display example of a time difference on a television screen.

FIG. 6 is a block diagram showing a configuration of a conventional delay reproduction device.

[Explanation of symbols]

 Reference Signs List 101 input terminal 102 tuner section 105 reproducing section 107 changeover switch 109 decoder 111 OSD device 113 speaker 115 display device 117 controller 119 121 header separator 123 header comparator 125 memory 127 storage device

Claims (8)

[Claims] 1. A first separating means for separating the first time information from a first signal containing first time information to be input, and a first time separately input together with the first signal. Recording / reproducing means for recording / reproducing a second signal including information on / from a recording medium capable of simultaneously recording and reproducing; separating the second time information from the reproduced second signal A recording / reproducing apparatus, comprising: a second separating unit that performs the above operation; a comparing unit that compares the separated first and second time information to obtain a time difference between the two; and a display unit that displays the time difference. Switching means for switching between the first signal and the second signal to be reproduced; storage means for storing a reproduction stop position on the recording medium when the reproduction is stopped; After the reproduction is stopped, the switching means sets the first
And control means for controlling the recording / reproducing means so as to start reproduction from the stored reproduction stop position when the signal is switched from the signal side to the second signal side to be reproduced. The recording / reproducing apparatus according to claim 1, wherein 3. The system according to claim 1, wherein said first signal is a signal of a first digital television broadcast program, and said second signal is a signal of a second digital television broadcast program. Recording and playback device. 4. The recording / reproducing apparatus according to claim 1, wherein the display means displays that the recording / reproducing means is recording. 5. A process for separating the first time information from a first signal including first time information to be input, and a second process including second time information separately input together with the first signal. Recording and reproducing the two signals on a recording medium capable of simultaneously performing recording and reproduction; processing for separating the second time information from the reproduced second signal; A computer-readable storage medium storing a program for executing a process of comparing the obtained first and second time information to obtain a time difference between the two, and a process of displaying the time difference. 6. A process for switching between the first signal and the second signal to be reproduced, a process for storing a reproduction stop position on the recording medium when the reproduction is stopped, and a process for stopping the reproduction. Later, when switching from the first signal side to the reproduced second signal side by the switching process,
6. The computer-readable storage medium according to claim 5, wherein a program for executing the process of starting playback from the stored playback stop position is stored. 7. The computer according to claim 5, wherein said first signal is a signal of a first digital television broadcast program, and said second signal is a signal of a second digital television broadcast program. A readable storage medium. 8. The computer-readable storage medium according to claim 5, wherein a program for executing a process of displaying that recording is being performed is stored.