JP2006050315A - Data recording and reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a data recording and reproducing device recording a program which a user periodically views. <P>SOLUTION: Processes executed by a system control circuit of the data recording and reproducing device includes a step (S210) which discriminates whether the power source of the data recording and reproducing device is ON or not; a step which discriminates whether the program is in the time zone and on a channel viewed for the first time, or not (S220) in a case when the power source is ON (YES in S210); a step to record the time zone and the channel as a program 1 (S230) in the case (YES in S220); a step to record the time zone and the channel of the program 1 as a program 2 (S240) when it is not in a time zone and on a channel viewed for the first time (NO in S220); and a step to record the program of the 2nd channel in the time zone of the program 2 (S250) when the power is not ON (NO in S210). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a data recording / reproducing apparatus, and more particularly to a data recording / reproducing apparatus having a reserved recording function.

  A hard disk recorder or other data recording / reproducing device records a program being received in response to a recording operation when the user views it, and plays the specified program when the user is not viewing based on the reservation information. Record for a specified time. Therefore, if the user does not set reservation information, the program is not recorded. Therefore, the user may forget to record a program that the user wants to view.

  Thus, for example, Japanese Unexamined Patent Application Publication No. 2002-185912 (Patent Document 1) discloses a broadcast program recording apparatus that automatically records a broadcast program. The apparatus receives a broadcast wave of a selected channel and demodulates the broadcast program, a recording unit that records the broadcast program on a recording medium in response to a recording start command, and a reception unit A memory that additionally records and stores the demodulated broadcast program channel, broadcast date, and broadcast time period in association with each other, and from the memory, the broadcast date is the same as a date before a predetermined period from today's date. And a search unit for searching for the channel corresponding to a broadcast program whose broadcast time zone matches the current time, and causing the reception unit to receive broadcast waves of the channel searched by the search unit, and causing the recording unit to And a history recording control unit for sending the recording start command.

According to the recording apparatus disclosed in Patent Document 1, it is possible to automatically record a program that is regularly viewed by a user without setting for timer recording. Therefore, it is possible to prevent the user from being unable to view.
JP 2002-185912 A

  According to the recording apparatus disclosed in Patent Document 1, all the channels selected by the user are subject to viewing. Therefore, the program of the temporarily selected channel is also recorded. As a result, since a program that the user does not intend to view may be recorded, the data storage area may be used more than necessary.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide a data recording / reproducing apparatus capable of recording a program that is regularly viewed by a user.

  Another object of the present invention is to provide a data recording / reproducing apparatus capable of recording a program that is regularly viewed by a user on another data recording / reproducing apparatus connected via a communication line. .

  In order to solve the above-described problems, according to one aspect of the present invention, a data recording / reproducing apparatus includes an input unit that receives an input of an instruction from the outside, a recording unit that stores data, and a tuner that receives radio waves of a television broadcast And a channel selection control means for causing the tuner to select a channel based on a channel selection instruction, a time measuring means for measuring the time in the data recording / reproducing apparatus, and a first channel selection instruction via the input means. The first channel selection is completed based on the first detection means for detecting the channel selection start time when the channel selection for the first channel is started and the second channel selection instruction via the input means. The channel selection start time is compared by comparing the channel detection start time with the second detection means for detecting the channel selection end time, and the start time of each of a plurality of time zones divided for each predetermined time. The first that contains the time By comparing the first specifying means for specifying the viewing time zone, the end times of each of the plurality of viewing time zones, and the channel selection end time, the second viewing time zone including the channel selection end time is obtained. A second specifying means for specifying, a first channel, a first viewing time zone, a storage means for storing the second viewing time zone, and a predetermined period from the first viewing time zone. A channel detecting means for detecting the selected second channel after the passage, a judging means for judging whether or not the first channel and the second channel are the same, and the first channel And channel information storage means for storing the second channel and the first viewing time zone in association with each other, and a switch for switching on / off the power of the data recording / reproducing apparatus And the time is the first view When power when the start time of the time zone is off, and a recording control means for recording video and audio signals from a broadcasting station which is tuned by the second channel. The recording control means outputs a signal for turning on the power. The channel selection control means causes the tuner to select the second channel. The recording control means further records the video / audio signal in the storage area, and ends the recording of the video / audio signal at the end time of the second viewing time zone.

  Preferably, the data recording / reproducing apparatus includes a communication means for communicating with at least one information recording / reproducing apparatus including a recording means for storing data and a means for communicating information via a communication line; In some cases, a generating means for generating a power information return request indicating whether or not each power of the information recording / reproducing apparatus is on, and a response request is transmitted to the communication means for each of the information recording / reproducing apparatuses. In response to the reception of the power supply information, the information recording / reproducing apparatus that is turned on receives the video / audio signal from the broadcasting station selected by the second channel in the recording of the information recording / reproducing apparatus. Recording command means for transmitting a command for causing the means to record.

  According to another aspect of the present invention, a data recording / reproducing apparatus includes an input unit that receives an instruction input from the outside, a recording unit that stores data, a channel selection unit that receives broadcast radio waves, and a channel selection unit. Channel selection control means for selecting a channel for which channel selection is instructed, timing means for measuring time in the data recording / reproducing apparatus, and channel selection start time at which channel selection for the first channel is started based on the instruction And a detection means for detecting a channel selection end time when the channel selection of the first channel is completed, and a viewing time zone in which the first channel is selected based on the channel selection start time and the channel selection end time A time zone specifying means for specifying the first channel, a storage means for storing the first channel and the specified viewing time zone, and a second channel that has been selected after the elapse of a predetermined period from the viewing time zone For detecting The channel detection means, the judgment means for judging whether or not the first channel and the second channel are the same, and the second channel when the first channel and the second channel are the same. Information storage means for associating and viewing time zone and storing, and when the time is the start time of the viewing time zone, a video and audio signal from a broadcasting station selected by the second channel is recorded. And a control means for recording.

  Preferably, the data recording / reproducing apparatus includes a communication unit that communicates with at least one information recording / reproducing apparatus including a recording unit that stores data and a unit that communicates information via a communication line, and the information recording / reproducing apparatus. For each of the above, a transmission control means for transmitting a power supply information return request indicating whether or not each power supply is on, and an information recording / reproducing apparatus that has transmitted the power supply information based on the reception of the power supply information, Recording command means for recording a video / audio signal from a broadcasting station selected by the second channel;

  Preferably, the control means is a recording control means for recording a video / audio signal on the recording means by switching the power on when the power of the data recording / reproducing apparatus is off when the time is the start time of the viewing time zone. including.

  Preferably, the data recording / reproducing apparatus further includes switching means for switching power on and off. The recording control means outputs a signal for turning on the power to the switching means. The channel selection control unit causes the channel selection unit to select the second channel. The recording control means further records the video / audio signal in the storage area, and ends the recording of the video / audio signal at the end time of the viewing time zone.

  Preferably, the detection means includes a first detection means for detecting a channel selection start time at which channel selection of the first channel is started based on a first channel selection instruction via the input means, and an input means. And a second detecting means for detecting a channel selection end time when the channel selection of the first channel is completed based on the second channel selection instruction. The time zone specifying means compares the start time of each of the plurality of viewing time zones divided for each predetermined time with the channel selection start time, so that the first viewing including the channel selection start time is included. The second viewing time zone including the channel selection end time is identified by comparing the first specifying unit for specifying the time zone with the end time of each of the plurality of viewing time zones and the channel selection end time. And second specifying means. The storage means stores the first channel, the first viewing time zone, and the second viewing time zone in association with each other. The channel information storage means stores the second channel and the first viewing time zone in association with each other.

  Preferably, when the power is on, the transmission control unit generates a power information return request, and causes each of the information recording / reproducing devices to transmit a response request to the communication unit. The recording command means transmits a command for causing the recording means of the information recording / reproducing apparatus to record the video / audio signal to the information recording / reproducing apparatus whose power is on.

  According to the data recording / reproducing apparatus of the present invention, when a program that is regularly viewed by a user is specified and the program is not viewed during that time period, the data recording / reproducing apparatus automatically records the program. . Since the user can view the recorded program, forgetting to watch the program that is regularly viewed is prevented.

  Further, according to the data recording / reproducing apparatus of the present invention, other data that is not used when the apparatus is already in use and is connected to another data recording / reproducing apparatus via a communication line. The recording / reproducing apparatus can record the program. As a result, the user can surely view the program.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

<First Embodiment>
With reference to FIG. 1, a configuration of a hard disk recorder 100 according to a first embodiment of the present invention will be described. FIG. 1 is a block diagram showing a hardware configuration of hard disk recorder 100. The hard disk recorder 100 is an aspect of the data recording / reproducing apparatus according to the present invention, and is not limited to this. For example, a device having a function of recording a video / audio signal on a DVD (Digital Versatile Disk) recorder or other removable recording medium may be used.

  As shown in FIG. 1, the hard disk recorder 100 receives an instruction input from the outside and outputs a signal corresponding to the instruction, and an operation unit 122 for receiving a remote control signal and issuing a command corresponding to the signal. A light receiving unit 124 for outputting, a clock circuit 126 for measuring the time of the hard disk recorder 100 and outputting a signal corresponding to the time, and a display unit for displaying the operation state of the hard disk recorder 100 to the outside 128. Here, the operation state refers to, for example, whether the hard disk recorder 100 is reproducing or recording, or a channel selection state by a tuner described later.

  The hard disk recorder 100 is further connected to an antenna 190, receives a radio wave, selects a channel for which channel selection is instructed, and broadcast video image data selected by the tuner 130 according to MPEG2 (Moving Picture). Experts Group 2) System control circuit for executing predetermined processing based on MPEG encoder 132 for conversion to the format and output, and signals input from outside and data stored in advance in the interior 110.

  The hard disk recorder 100 is further output from the hard disk device 140, the MPEG decoder 136 for restoring the data output from the system control circuit 110, which is video data compressed in the MPEG2 format, and the system control circuit 110. An OSD (On Screen Display) image generation circuit 114 for generating an image to be displayed on a video display unit based on information representing an operation state of the hard disk recorder 100 and predetermined data, and an MPEG decoder 136. An output unit 138 that combines the output data and the data output from the OSD image generation circuit 114 and outputs a signal for displaying a video is included.

  The hard disk recorder 100 is connected to the television 150 at the output unit 138 via a cable (not shown). The hard disk device 140 includes a data recording / reproducing head 142 for recording and reproducing data and a hard disk 144 for storing data.

  With reference to FIG. 2, the control structure of hard disk recorder 100 according to the present embodiment will be described. FIG. 2 is a flowchart showing a procedure of processing executed by system control circuit 110 of hard disk recorder 100.

  In step S210, system control circuit 110 determines whether or not hard disk recorder 100 is powered based on the input signal. If power of hard disk recorder 100 is on (YES in step S210), the process proceeds to step S220. If not (NO in step S210), the process proceeds to step S250.

  In step S 220, system control circuit 110 performs the operation of hard disk recorder 100 based on the data stored in memory 112, the time data input from timer circuit 126 and the data output to tuner 130. It is determined whether or not the current setting is the time zone and channel (CH) for the first viewing. If the state is the time zone and channel for viewing for the first time (YES in step S220), the process proceeds to step S230. If not (NO in step S220), the process proceeds to step S240.

  In step S230, the system control circuit 110, in a predetermined area of the memory 112, the channel selected by the tuner 130 and the time zone calculated based on the time data input from the clock circuit 126. Are stored as information of “program 1”. Here, the stored time zone is, for example, a time zone delimited by a detected time (ie, channel selection start time) and a predetermined time unit (eg, 15 minutes, 1 hour, etc.). It is obtained by comparing the start time and specifying the time zone having the start time immediately before the channel selection start time. Data corresponding to the program 1 is sequentially accumulated according to the user's operation. The data structure in this case will be described later.

  In step S240, system control circuit 110 sets the time zone and channel of hard disk recorder 100 to “program 2” in a predetermined area of memory 112 that is different from the area stored in step S230. Store as information. This program 2 is a program to be recorded that is specified according to the viewing pattern of the user.

  In step S250, the system control circuit 110 determines that the tuner 130 is based on the data stored in the memory 112 in step S230 when the time input from the timing circuit 126 is the start time of the program 2 time zone. To automatically record. This recording continues until the end time of the program 2 time zone. Thus, since the program is recorded on the hard disk device 140, the user can view the program later even if he / she did not view it without making a recording reservation in advance.

  Here, with reference to FIG. 3, a data structure in hard disk recorder 100 according to the present embodiment will be described. FIG. 3 is a diagram illustrating an aspect of a data structure related to program 1 stored in memory 112 in step S230.

  The detected program number is stored in area D310. This number is automatically given every time “program 1” is newly detected in step S230 shown in FIG. The calculated start time of the time zone is stored in area D320. The end time of the time zone is stored in area D330. The selected channel is stored in the area D340.

  Such data storage is performed when the user turns on the hard disk recorder 100 and selects the same channel for a predetermined time (for example, 10 minutes or more). Is stored in association with the channel. Note that the data storage mode is not limited to that shown in FIG. 3, and other modes may be used.

  With reference to FIG. 4, the data structure in hard disk recorder 100 according to the present embodiment will be further described. FIG. 4 is a diagram showing an aspect of the data structure stored in memory 112 in step S240 of FIG.

  With respect to the data shown in FIG. 3, when the process of step S <b> 240 in FIG. 2 is executed, the data is stored in the memory 112 as data of the program 2. That is, when it is confirmed that the user views the same channel again in the same time zone, the time zone and channel calculated for that time are stored in the memory 112.

  A region D410 stores the number of the program thus detected. Area D420 stores the start time of the time zone. Here, the start time may include day-of-week data in addition to the time data as shown in FIG. Area D430 stores the end time of the time zone. Area D440 stores the channel of tuner 130.

  An operation of hard disk recorder 100 according to the present embodiment based on the above-described structure and flowchart will be described.

  When the user turns on the power of hard disk recorder 100 and views a program for a certain period of time, if the channel and time zone being viewed are the first time to view (YES in step S220), hard disk recorder 100 Stores the channel at that time and the time zone specified at the time of viewing (program 1) in a predetermined area of the memory 112 (step S230).

  When the user is viewing the program of the same channel again in the same time zone (NO in step S220), the information of program 1 is set as program 2 and is different from the area where program 1 is stored in memory 112. Store in the area (step S240).

  Thereafter, after one week of the time zone stored as program 2, when hard disk recorder 100 is turned off (NO in step S210), hard disk recorder 100 reaches the start time of program 2 time zone. Then, the power is turned on, the tuner 130 is set to the channel of the program 2, and the received program is recorded in the memory 112 (step 250).

  As described above, the hard disk recorder 100 according to the present embodiment sequentially accumulates the time zone and the channel that the user first viewed as channel 1 information. Thereafter, the hard disk recorder 100 records the program as the program 2 when the user views again in the same time zone and the same channel in the time zone and the channel included in the program 1. Thereby, the program which a user views regularly is specified.

  Thereafter, when the power of the hard disk recorder 100 is turned off, that is, when the user is not watching the program using the hard disk recorder 100, when the start time of the time zone of the program 2 is reached, the hard disk recorder 100 itself Based on the information of program 2, the program is recorded. Thereby, even if it is a case where a user does not view the program which a user views regularly, the user can view the recorded program.

  In this embodiment, whether or not viewing is regularly performed is determined in units of one week, but is not limited to this interval. For example, it may be every day or every day from Monday to Friday.

<Second Embodiment>
Hereinafter, a second embodiment of the present invention will be described. The hard disk recorder according to the present embodiment is different from the first embodiment described above in that it can be connected to another hard disk recorder via a network line.

  Referring to FIG. 5, first hard disk recorder 500 according to the present embodiment is connected to second hard disk recorder 502, third hard disk recorder 504, and fourth hard disk recorder 506 via home network 590. Each is connected. Here, the home network 590 may be either wired or wireless.

  With reference to FIG. 6, the configuration of hard disk recorder 500 according to the present embodiment will be described. FIG. 6 is a block diagram showing a hardware configuration of hard disk recorder 500. The same components as those in the first embodiment described above are denoted by the same reference numerals, and description thereof will not be repeated.

  Hard disk recorder 500 further includes a network interface 510 in addition to the configuration of hard disk recorder 100 shown in FIG. A home network 590 is connected to the network interface 510.

  A signal output from the system control circuit 110 is transmitted to the home network 590 via the network interface 510. Similarly, an input signal received by network interface 510 from home network 590 is input to system control circuit 110.

  With reference to FIG. 7, a configuration of a signal transmitted by hard disk recorder 500 according to the present embodiment will be described. FIG. 7 is a diagram showing a configuration of a signal output from hard disk recorder 500. This signal is generated by processing of the system control circuit 110.

  This output signal includes a transmission header 710 and a transmission signal 720. The transmission header 710 includes data for specifying the address of the transmission destination of this signal and other hard disk recorders. The transmission signal includes a reply request for information specifying the hard disk recorder that is turned on at the time of transmission of this signal.

  Note that the signal shown in FIG. 7 is an aspect of a signal transmitted to the second hard disk recorder. Such signals are also created for other hard disk recorders. The data configuration included in the signal is not limited to that shown in FIG. For example, data for designating a recording mode may be further included.

  For such data for specifying the transmission destination, the identification information of the data recording / reproducing device connected via the home network 590 is registered in advance in the memory 112 of the hard disk recorder 500 and other storage devices. Alternatively, the hard disk recorder connected to the home network 590 may be specified by detecting and automatically recognizing the connection by a so-called plug-in function.

  With reference to FIG. 8, signals transmitted by hard disk recorder 500 according to the present embodiment will be further described. FIG. 8 shows a structure of a signal transmitted in response to the signal shown in FIG. That is, this signal is transmitted to the hard disk recorder 500 that has output the reply request by another hard disk recorder that has received the reply request.

  This signal includes a transmission header 810 and control data 820. The transmission header 810 includes a network address in the home network 590 of the hard disk recorder 500. The control data 820 includes information for notifying the operation status of each of the other hard disk recorders that have received the signal shown in FIG. 7, in the example of FIG. 5, the hard disk recorders 502, 504, and 506. This information includes information for indicating, for example, whether the power of the hard disk recorder is on or whether reserved recording is set.

  With reference to FIG. 9, a data structure in hard disk recorder 500 according to the present embodiment will be described. FIG. 9 is a diagram conceptually showing one mode of storing data representing the recording state in memory 112. This data may be stored in a storage device other than the memory 112, for example, a predetermined area of the hard disk 144, for example, a system management area.

  The recording number automatically assigned based on a predetermined standard is stored in the area D910. The recording file name for identifying the video data is stored in area D920. Data representing the recording location where the file is stored is stored in area D930. The time when the recording of the video is started is stored in area D940. The time when the recording is finished is stored in area D950. The channel recorded by the recording is stored in the area D960.

  For example, the data of the recording number 001 is the recorded program named “pgm1”. “In the second hard disk recorder 502, the program of the channel 20 is changed from 19:00 on June 8, 2004 to 20:00. Until it is recorded.

  Thus, by storing video information from other hard disk recorders in a centralized memory, the user can easily select a program that he / she wishes to view during playback. Note that the data shown in FIG. 9 may be stored in a hard disk recorder other than the hard disk recorder 500. Thus, the user can easily check the recording state of each hard disk recorder connected to the home network 590.

  With reference to FIG. 10, a control structure of hard disk recorder 500 according to the present embodiment will be described. FIG. 10 is a flowchart showing a procedure of processing executed by system control circuit 110 of hard disk recorder 500. This process is realized, for example, by executing a program stored in advance in the memory 112, but each process may be realized by other modes. For example, each circuit for executing each process may execute each process.

  In step S <b> 1002, system control circuit 110 detects the recording start time of program 2 based on the time data input from timer circuit 126.

  In step S1004, system control circuit 110 determines whether or not the first hard disk recorder, that is, hard disk recorder 500 itself is powered on. If the power is on (YES in step S1004), the process proceeds to step S1006. If not (NO in step S1004), the process proceeds to step S1018.

  In step S1006, system control circuit 110 transmits a reply request to each address registered in advance in order to search for another hard disk recorder whose power is off. In step S1008, system control circuit 110 receives a response signal from another hard disk recorder via network interface 510.

  In step S1010, system control circuit 110 determines whether the second hard disk recorder connected to home network 590 is on based on the received signal. If the hard disk recorder is powered on (YES in step S1010), the process proceeds to step S1012. If not (NO in step S1010), the process proceeds to step S1016.

  In step S1012, system control circuit 110 determines whether the power of the nth hard disk recorder is on based on the signal received via network interface 510. Here, the value of n is one less than the total number of hard disk recorders connected to the home network 590. If the power is on (YES in step S1012), the process proceeds to step S1014. If not (NO in step S1012), the process proceeds to step S1016.

  In step S 1014, system control circuit 110 generates information indicating that program 2 cannot be recorded, and stores the information in a predetermined area of memory 112. In step S1016, system control circuit 110 outputs a command to perform recording based on the recording data associated with program 2 to the nth hard disk recorder. When such a command is output, the n-th hard disk recorder that has received the command sets a tuner for recording the program 2 and automatically records it on a storage medium such as a hard disk or a DVD.

  In step S1018, system control circuit 110 generates recording information having predetermined items. In step S1020, system control circuit 110 stores the generated recording information in a predetermined area of memory 112 (FIG. 9).

  An operation of hard disk recorder 500 according to the present embodiment based on the above structure and flowchart will be described.

  When the user is using the hard disk recorder 500, if the time of the hard disk recorder 500 becomes the recording start time of the program 2 (step S1002), the power of the hard disk recorder 500 itself is on (YES in step S1004). The hard disk recorder 500 transmits a reply request to another hard disk recorder (step S1006). The hard disk recorder 500 receives response signals from the other hard disk recorders 502, 504, and 506 (step S1008).

  If the power of second hard disk recorder 502 is off (NO in step S1010), hard disk recorder 500 transmits a command to record program 2 to second hard disk recorder 502. Based on the command, the second hard disk recorder 502 sets the channel corresponding to the program 2 and records the program from the designated start time to end time (step S1016).

  As described above, when the hard disk recorder 500 according to the present embodiment is in use when the recording start time of the program 2 is reached, another hard disk recorder that is turned off and is not reserved for recording. Search for. When such a hard disk recorder is searched, the hard disk recorder 500 causes the hard disk recorder to record the program based on the information of the program 2. Thus, even when the hard disk recorder 500 is in use, the other hard disk recorder records a program that is regularly viewed by the user, so that the user can surely view the program.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  The present invention can be applied to a data recording / reproducing apparatus such as a hard disk recorder or a DVD recorder.

It is a block diagram showing the hardware constitutions of the hard-disk recorder based on the 1st Embodiment of this invention. It is a flowchart showing the procedure of the process which the hard-disk recorder based on the 1st Embodiment of this invention performs. FIG. 3 is a diagram (part 1) showing one aspect of a data structure in the hard disk recorder according to the first embodiment of the present invention; It is FIG. (2) showing the one aspect | mode of the data structure in the hard-disk recorder which concerns on the 1st Embodiment of this invention. It is a figure for demonstrating the network structure by the hard-disk recorder based on the 2nd Embodiment of this invention. It is a block diagram showing the hardware constitutions of the hard-disk recorder based on the 2nd Embodiment of this invention. It is FIG. (1) showing the structure of the signal which the hard-disk recorder based on the 2nd Embodiment of this invention transmits. It is FIG. (2) showing the structure of the signal which the hard-disk recorder based on the 2nd Embodiment of this invention transmits. It is a figure which represents notionally the one aspect | mode of the data structure in the hard-disk recorder based on the 2nd Embodiment of this invention. It is a flowchart showing the procedure of the process which the hard-disk recorder based on the 2nd Embodiment of this invention performs.

Explanation of symbols

  100, 500, 502, 504, 506 Hard disk recorder, 110 system control circuit, 112 memory, 114 OSD image generation circuit, 122 operation unit, 124 light receiving unit, 126 timing circuit, 128 display unit, 130 tuner, 132 MPEG encoder, 136 MPEG decoder, 138 output unit, 140 hard disk device, 142 data recording / reproducing head, 144 hard disk, 150 TV, 190 antenna, 510 network interface, 590 home network.

Claims (8)

A data recording / reproducing device,
An input means for receiving an instruction input from the outside;
Recording means for storing data;
A tuner that receives radio waves from TV broadcasting,
Channel selection control means for causing the tuner to select a channel based on a channel selection instruction;
Time measuring means for measuring time in the data recording / reproducing apparatus;
First detection means for detecting a channel selection start time at which channel selection of the first channel is started based on a first channel selection instruction via the input means;
Second detection means for detecting a channel selection end time when channel selection of the first channel is completed based on a second channel selection instruction via the input unit;
The first viewing time zone including the channel selection start time is specified by comparing the channel selection start time with the start time of each of a plurality of time zones divided for each predetermined time. A first specifying means;
A second specifying means for specifying a second viewing time zone including the channel selection end time by comparing the end time of each of the plurality of viewing time zones with the channel selection end time;
Storage means for storing the first channel, the first viewing time zone, and the second viewing time zone;
Channel detection means for detecting a second channel being selected after elapse of a predetermined period from the first viewing time period;
Determining means for determining whether the first channel and the second channel are the same;
Channel information storage means for storing the second channel and the first viewing time period in association with each other when the first channel and the second channel are the same;
A switch for switching the power of the data recording / reproducing device on and off;
Recording control means for recording a video / audio signal from a broadcast station selected by the second channel when the power is off when the time is the start time of the first viewing time zone; With
The recording control means outputs a signal for turning on the power,
The channel selection control means causes the tuner to select the second channel,
The data recording / reproducing apparatus, wherein the recording control means further records the video / audio signal in the storage area and ends the recording of the video / audio signal at an end time of the second viewing time zone. The data recording / reproducing apparatus comprises:
A communication means for communicating with at least one information recording / reproducing apparatus comprising a recording means for storing data and a means for communicating information via a communication line;
Generating means for generating a response request for power information indicating whether or not each power of the information recording / reproducing apparatus is on when the power is on;
Transmission control means for causing the communication means to transmit the reply request to each of the information recording / reproducing devices;
In response to reception of the power information, the information recording / reproducing apparatus with the power turned on receives a video / audio signal from a broadcasting station selected by the second channel as recording means of the information recording / reproducing apparatus. The data recording / reproducing apparatus according to claim 1, further comprising recording command means for transmitting a command for causing the recording to be performed. A data recording / reproducing device,
An input means for receiving an instruction input from the outside;
Recording means for storing data;
Channel selection means for receiving broadcast radio waves,
Channel selection control means for causing the channel selection means to select a channel for which channel selection is instructed;
Time measuring means for measuring time in the data recording / reproducing apparatus;
Detecting means for detecting a channel selection start time at which channel selection of the first channel was started and a channel selection end time at which channel selection of the first channel was completed based on the instruction;
Based on the channel selection start time and the channel selection end time, a time zone specifying means for specifying a viewing time zone in which the first channel is selected;
Storage means for storing the first channel and the specified viewing time zone;
Channel detection means for detecting a second channel that has been selected after elapse of a predetermined period from the viewing time zone;
Determining means for determining whether the first channel and the second channel are the same;
Channel information storage means for storing the second channel and the viewing time zone in association with each other when the first channel and the second channel are the same;
Data recording / playback comprising: control means for recording a video / audio signal from a broadcasting station selected by the second channel in the recording means when the time is the start time of the viewing time zone. apparatus. The data recording / reproducing apparatus comprises:
A communication means for communicating with at least one information recording / reproducing apparatus comprising a recording means for storing data and a means for communicating information via a communication line;
Transmission control means for transmitting a response request for power information indicating whether or not each of the power supplies is on to each of the information recording / reproducing devices;
Recording information means for recording the video / audio signal from the broadcasting station selected by the second channel in the information recording / reproducing apparatus that has transmitted the power information based on reception of the power information; The data recording / reproducing apparatus according to claim 3.   The control means switches the power on to record the video / audio signal on the recording means when the power of the data recording / reproducing apparatus is off when the time is the start time of the viewing time zone. 5. The data recording / reproducing apparatus according to claim 3, further comprising a recording control unit that performs recording. The data recording / reproducing apparatus further includes switching means for switching the power on and off,
The recording control means outputs a signal for turning on the power to the switching means,
The channel selection control unit causes the channel selection unit to select the second channel,
6. The data recording / reproducing apparatus according to claim 5, wherein the recording control unit further records the video / audio signal in the storage area, and ends the recording of the video / audio signal at an end time of the viewing time zone. The detection means includes
First detection means for detecting a channel selection start time at which channel selection of the first channel was started based on a first channel selection instruction via the input means;
Second detection means for detecting a channel selection end time when channel selection of the first channel is completed based on a second channel selection instruction via the input means;
The time zone specifying means is:
The first viewing time zone including the channel selection start time is identified by comparing the start time of each of the plurality of viewing time zones divided for each predetermined time with the channel selection start time. First identifying means to:
A second specifying unit that specifies a second viewing time zone in which the channel selection end time is included by comparing each channel end time with the channel selection end time. ,
The storage means stores the first channel, the first viewing time zone, and the second viewing time zone in association with each other,
The data recording / reproducing apparatus according to claim 3, wherein the channel information storage unit stores the second channel and the first viewing time period in association with each other. The transmission control means generates a reply request for the power information when the power is on, and causes each of the information recording / reproducing devices to send the reply request to the communication means,
5. The data according to claim 4, wherein the recording command unit transmits a command for causing the recording unit of the information recording / reproducing apparatus to record the video / audio signal to the information recording / reproducing apparatus that is turned on. Recording / playback device.

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