JP2006229396A - Device for recording/reproducing broadcast program, and method for reserved recording of broadcast program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for recording/reproducing a broadcast program and a method for reserved recording of a broadcast program with which automatic update of recording reservation information can be executed, corresponding to changes of a program title, recording of the other reserved programs will not be affected, even when a reservation time is changed with the automatic change of reservation information, and recording reservation can be automatically canceled at the end of the broadcast of a series. <P>SOLUTION: A recording reservation update means 217 acquires new program information, on the basis of new program data 212 (S101) and detects new broadcasting time information regarding the reserved program from among the new program information by using a title character string of the reserved program stored in a recording reservation storage means 216 (S102). The reservation time information, stored in the recording reservation storage means 216, is read out (S103). The new broadcasting time information is compared with the reservation time information (S104). When the new broadcasting time information does not agree with the reservation time information, as a result of the comparison, program reservation connecting processing (S105) is executed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcast program recording / playback apparatus and a broadcast program reserved recording method for a television broadcast program, and more particularly to a broadcast program recording / playback apparatus such as a DVD (digital versatile disk) recorder or a hard disk recorder equipped with an electronic program guide function. The present invention also relates to a broadcast program reserved recording method in the apparatus.

  In a conventional broadcast program recording / playback apparatus, when a continuous program broadcast at a specific time on a specific day of the week or a specific time every day is reserved and automatically recorded, the channel or day of the week on which the program to be recorded is broadcast Reservation information such as time is acquired from program information such as newspapers and broadcast program guide information magazines, etc., and programs are transmitted from electronic program guides called EPG (Electronic Program Guide) through broadcast waves and external signal lines. A method of acquiring information and acquiring and inputting reservation information of a program to be recorded from a program guide included in the program information of the EPG has been adopted. This is the same for not only continuous programs but also one-time programs.

  However, these methods have a problem that if the broadcast time of a reserved program is changed, a desired program cannot be recorded unless the user manually confirms and changes the broadcast time.

  As an improvement measure, for example, as disclosed in Patent Document 1, a program title of a program to be recorded at the time of reservation is also recorded as reservation information, and a new program for a program within a predetermined time range from the reserved time is recorded. A method has been devised in which the broadcast time of a reserved program is specified by comparing characters between the program title in the information and the program title of the reserved program. By adopting this method, it is possible to automatically change the reservation information even when the broadcast time of the reserved program is changed.

Japanese Patent Laying-Open No. 2003-46921 (pages 8 to 9, FIG. 1)

  In Patent Document 1 described above, the program title of the reserved program is compared with the program title in the program information within a predetermined time range, and the reserved program is specified by the degree of matching of the characters. When a change or the like is made, there is a possibility that different programs having similar program titles existing before and after the reserved time are mistakenly recorded, and as a result, the desired program cannot be recorded.

  In addition, even if the change in the broadcast time of the program can be accurately tracked, if another recording reservation is made during the changed broadcast time, some or all of either program cannot be recorded. There was a possibility.

  In addition, if a scheduled recording such as “Weekly” or “Daily” is made for a continuous program, etc., and the target program no longer exists due to the end of the broadcast of the continuous program, etc., the user Unless manually canceling the reservation, a new program broadcast at the same time or another program with a similar program title will be recorded by mistake, and the recording capacity of a recording medium such as a DVD disc is required. There was a problem of consuming more than that.

  The present invention has been made to solve the above-described problems, and it is possible to automatically update the recording reservation information in response to a significant change in the program title, and also due to the automatic change of the recording reservation information. Even if the reservation time is changed, the recording of other reserved programs will not be affected, and in the case of regular recording reservations for continuous programs, etc. An object of the present invention is to provide a resolvable broadcast program recording / playback apparatus and broadcast program reserved recording method.

  The broadcast program reserved recording method according to claim 1 of the present invention is a broadcast program that automatically changes preset recording reservation information based on electronic program data having broadcast time information of a television broadcast program. A reservation recording method, the step (a) of acquiring broadcast time information of a target program that is a target of recording reservation from the electronic program data, and the reservation time information of the target program from the recording reservation information. As a result of the comparison in the step (b) of obtaining, the step (c) of comparing the broadcast time information and the reservation time information, and the comparison in the step (c), the broadcast time information and the reservation time information are If not, so as to record the broadcast program including both the broadcast time zone obtained based on the broadcast time information and the reserved time zone obtained based on the reserved time information, And a step (d) to automatically change the recording image reservation information.

  According to a third aspect of the present invention, there is provided a broadcast program reservation recording method for automatically changing preset recording reservation information based on electronic program data having broadcast time information of a television broadcast program. A reservation recording method, wherein the first and second broadcast time information of the first and second target programs of different broadcast stations targeted for recording reservation are obtained from the electronic program data, respectively. a), a step (b) of acquiring first and second reserved time information of the first and second target programs from the recording reservation information, respectively, and the first and second broadcast time information And the step (c) of comparing the first and second reservation time information respectively, and as a result of the comparison in the step (c), the first broadcast time information and the first reservation time information Comparison results and before If at least one of the comparison results between the second broadcast time information and the second reserved time information does not match, the first broadcast time zone obtained based on the first broadcast time information And (d) comparing the second broadcast time zone obtained based on the second broadcast time information, and as a result of the comparison in step (d), When the second broadcast time zone overlaps at least partially, based on the first broadcast time zone and the second broadcast time zone, new first reserved time information and new second time zone respectively. Reservation time information is set, and the first and second target / second programs can be operated independently of each other based on the new first and second reservation time information. A step (e) of deciding to record each with a compression means; including.

  The broadcast program reserved recording method according to claim 5 of the present invention automatically changes preset recording reservation information based on electronic program data having broadcast time information and title information of a television broadcast program. The broadcast program reservation recording method includes: continuous reservation information that reserves a continuous program that is continuously broadcasted at almost the same time period every day or on a specific day of the week, and from the electronic program data (A) acquiring the title information of the target program to be reserved for recording, and whether the title information of the target program includes a predetermined symbol indicating the end or start of the continuous program In step (b) for determining whether or not it is determined in step (b) that the predetermined symbol is included, the continuous reservation information is automatically And a step (c) to disposal.

  According to a seventh aspect of the present invention, there is provided a broadcast program recording / reproducing apparatus having a function of automatically changing preset recording reservation information based on electronic program data having broadcast time information of a television broadcast program. A broadcast program recording / playback apparatus having the broadcast time information of a target program that is acquired from the electronic program data and is a recording reservation target, and the reservation time information of the target program that is acquired from the recording reservation information; If the broadcast time information and the reserved time information do not match, the broadcast time zone obtained based on the broadcast time information and the reserved time zone obtained based on the reserved time information Recording reservation update means for automatically changing the recording reservation information so as to record the broadcast program in both.

  The broadcast program recording / reproducing apparatus according to claim 8 of the present invention has a function of automatically changing preset recording reservation information based on electronic program data having broadcast time information of a television broadcast program. A broadcast program recording / playback apparatus having the first and second demodulation / compression means operable independently of each other, and a broadcast station that is a recording reservation target obtained from the electronic program data, respectively The first and second target programs of the first and second target programs obtained from the first and second broadcast time information of the different first and second target programs and the recording reservation information, respectively. Reservation time information is respectively compared, the comparison result between the first broadcast time information and the first reservation time information, and the comparison result between the second broadcast time information and the second reservation time information. At least If one does not match, the first broadcast time zone obtained based on the first broadcast time information and the second broadcast time zone obtained based on the second broadcast time information A comparison is made, and if the first broadcast time zone and the second broadcast time zone at least partially overlap, a new one is generated based on the first broadcast time zone and the second broadcast time zone, respectively. First reservation time information and new second reservation time information are set, and the first and second target programs are assigned to the first and second reservation time information based on the new first and second reservation time information. Recording reservation updating means for determining to record each using the second demodulation / compression means.

  The broadcast program recording / playback apparatus according to claim 9 of the present invention automatically changes preset recording reservation information based on electronic program data having broadcast time information and title information of a television broadcast program. The broadcast program recording / playback apparatus having a function to perform the recording reservation information includes continuous reservation information for reserving a continuous program that is continuously broadcast every day or on a specific day in substantially the same time zone, It is determined whether or not a predetermined symbol indicating the end or start of the continuous program is included in the title information of the target program to be recorded and acquired from the electronic program data. When it is determined that a symbol is included, there is provided program alteration detection means for automatically discarding the continuous reservation information.

  According to the broadcast program recording / playback apparatus and the broadcast program reserved recording method according to the present invention, the recording reservation information can be automatically updated even when the program title is significantly changed. Further, even when the reservation time is changed due to the automatic update of the recording reservation information, it is possible to reliably record the program to be recorded.

<A. Embodiment 1>
Hereinafter, Embodiment 1 according to the present invention will be described with reference to FIGS.

<A-1. Device configuration>
FIG. 1 is a block diagram showing a configuration of a broadcast program recording / playback apparatus 100 according to the first embodiment of the present invention.

  As shown in FIG. 1, a broadcast program recording / playback apparatus 100 receives a radio frequency (RF) signal 201 received by an external antenna (not shown), and outputs a recording analog video / audio signal 203, and a tuner 202. Are connected to the AV encoder 204, an AV (Audio Visual) encoder 204 that receives the recording analog video / audio signal 203 output from the tuner 202, converts it to a recording digital video / audio signal 205, and outputs it. A stream controller 206 connected to the storage medium 207, an AV decoder 209 that receives the playback digital video / audio signal 208 output from the stream controller 206, converts it into a playback analog video / audio signal 210, and Program data from recording analog video / audio signal 203 12 is a program data extracting device 211 for extracting 12 and a microcomputer for receiving program data 212 extracted by the program data extracting device 211 and executing program reservation based on a reservation instruction input from an external reservation input means 215 213 and recording reservation storage means 216 that stores recording reservation information and gives it to the microcomputer 213 as appropriate. The microcomputer 213 includes a recording reservation update unit 217. When the program information is changed, the microcomputer 213 automatically changes the recording reservation information based on the program data 212 (tracking recording function), It has a function of controlling the OSD (On Screen Display) device built in the AV decoder 209 to display the program data 212 on the display. The recording reservation update unit 217 is configured using an arithmetic processing unit in the microcomputer 213, an internal memory, or the like, and the function of the recording reservation update unit 217 is realized by executing a computer program on the microcomputer 213. can do.

<A-2. Device operation>
Next, the operation of the broadcast program recording / playback apparatus 100 will be described with reference to FIGS.
FIG. 2 is a time chart schematically showing the reserved recording operation by the broadcast program recording / reproducing apparatus 100, and FIGS. 3 and 4 are flowcharts for explaining the reserved recording operation by the broadcast program recording / reproducing apparatus 100.

  In FIG. 2, the program information at the time of recording reservation, the program information changed after the recording reservation, and the recording result are shown together. As an example, the first target program to be reserved for recording is the first. It is assumed that a program 101 exists, and the first program 101 has a program title “New Year special program”, a broadcast start time 20:00, and a broadcast end time 22:00 as program information at the time of recording reservation. It is assumed that the broadcast time information is included.

  When recording video / audio information constituting a program, an RF signal 201 received by an external antenna (not shown) is received by the tuner 202 and converted into a recording analog video / audio signal 203 by the tuner 202.

  A recording analog video / audio signal 203 is subjected to data compression such as MPEG (Moving Pictures Experts Group) by an AV encoder 204 and converted into a recording digital video / audio signal 205, and a stream controller 206 performs a DVD or hard disk drive (HDD). ) Or the like. The stream controller 206 has a memory, temporarily stores the recording digital video / audio signal 205 given as a data stream, and transfers it to the storage medium 207 when it is stored to some extent, and the data recorded in the storage medium 207 Is read out and transferred to the AV decoder 209.

  On the other hand, when the recorded program is played back, the stream controller 206 reads it from the storage medium 207 as a playback digital video / audio signal 208, converts it into a playback analog video / audio signal 210 by the AV decoder 209, and converts it into a television receiver (TV). ) Is sent to a display device (not shown) such as a display to view the recorded program.

  Note that the broadcast program recording / playback apparatus 100 can also be viewed on a display device while recording a program. In this case, a recording digital video / audio signal 205 is provided to the storage medium 207 via the stream controller 206. At the same time, it is also supplied to the AV decoder 209, converted into a reproduction analog video / audio signal 210, and supplied to the display device.

  The program information included in the recording analog video / audio signal 203 includes information related to the broadcast date and time (broadcast time information), information related to the program title (title information), and broadcast station information (channel information). Is extracted as program data 212, sent to the microcomputer 213, and stored.

  The microcomputer 213 provides the program data 212 to the user in the form of a program table by displaying the program data 212 on a display device such as a TV using the OSD device 214 built in the AV decoder 209, for example.

  The user instructs the microcomputer 213 to make a recording reservation by selecting a program to be reserved for recording from the program table displayed on the screen by using the reservation input means 215 constituted by a remote controller or the like. .

  The microcomputer 213 stores the recording reservation information in the recording reservation storage means 216 constituted by a nonvolatile memory or the like, and when the date and time specified by the recording reservation information comes, the tuner 202, the AV encoder 204, and the stream The controller 206 is directly or indirectly controlled to record the broadcast program on the storage medium 207.

  Generally, the program data 212 stores program information for about one week ahead, and the user can make a reservation from several days before the broadcast day. The program data 212 is transmitted from the broadcasting station several times a day, and the contents are also updated.

  When the program data 212 is updated, the recording reservation information stored in the recording reservation storage unit 216 based on the update data is automatically updated by the recording reservation update unit 217. When the recording reservation information is updated, recording of the broadcast program is executed based on the updated recording reservation information. Hereinafter, the operation of the recording reservation updating unit 217 when the program data 212 is updated will be described.

<A-2-1. Operation when the broadcast time of a reserved program is changed>
First, the operation of the recording reservation update means 217 when the program data 212 is updated so that the broadcast time zone of the already reserved program moves back and forth will be described.

  Here, as shown in FIG. 2, it is assumed that the user has reserved recording of the first program 101 based on the program table.

  As described above, the program information includes not only the broadcast start time and broadcast end time, but also the program title “New Year Special Program”, and the program title is also input when recording reservations. It is assumed that the title character string of the first program 101 (in this case, “New Year special program”) is stored in the recording reservation storage unit 216.

  When the program data 212 is updated, the recording reservation update unit 217 in the microcomputer 213 uses the title character string stored in the recording reservation storage unit 216 at the time when the new program data 212 is acquired. The program 101 is detected from the new program data 212.

  Whether or not the detected broadcast start time and broadcast end time of the first program 101 coincide with the reserved recording start time and reserved recording end time of the first program 101 stored in the recording reservation storage means 216. If they do not match, it is determined that the broadcast time zone has been changed, and the detected broadcast start time and broadcast end time of the first program 101 are changed to the changed program start time and Used as the program end time after change.

  In determining the new scheduled recording start time and the new scheduled recording end time, the information about the scheduled recording start time and the scheduled recording end time included in the scheduled time information stored in the scheduled recording storage means 216 is also after the change described above. A feature of the first embodiment is that the information is used together with information on the program start time and the changed program end time. Detailed processing will be described later with reference to FIGS. 3 and 4.

<A-2-2. Operation when the program title of a reserved program is changed>
As a pattern for updating the program data 212, there is a pattern in which the program title of the already reserved program is changed.

  Here, it is assumed that the program title of the first program 101 is changed to “Imperial New Year” as shown in FIG. The changed program is referred to as the second program 102 for the sake of convenience and is distinguished from the first program 101.

  As described above, the method of acquiring new broadcast time information from the new program data 212 using the program title character string cannot follow up when the program title is changed. On the contrary, as shown in FIG. 2 as the program information after the recording reservation, the reserved time when the third program 103 having a similar program title character string, for example, the program title “New Year Mansai”, is stored in the recording reservation storage means 216. If it exists in the vicinity of the band, the recording reservation update unit 217 erroneously detects the third program 103 as the first program 101, and changes the broadcast time band from 19:00 to 20:00 There is a possibility that the second program 102 to be originally recorded cannot be recorded.

  Further, in addition to a method of acquiring new broadcast time information from the new program data 212 using the program title character string, a new broadcast time from the new program data 212 using the program ID number assigned to each program. There is also a way to get information.

  However, in this method, the third program 103 having a similar character string in the program title is not detected as the first program 101, but there is no guarantee that the program ID number is unique to each program. There is a possibility of erroneously detecting the program. In addition, in a continuous program, there is a possibility that the program ID number allocated for each broadcast time may be different. Therefore, in the method of updating the broadcast time information using the program ID number, the user selects a program for each broadcast time. Note that the burden on the user increases, for example, that the program ID number must be set again, and there is a possibility that another program will be erroneously detected.

  Therefore, in the recording reservation update means 217, when the program data 212 is updated so that the broadcast time zone of the reserved program moves back and forth, or when the program title is changed and another program is erroneously detected. As described above, when a situation occurs in which the reservation time information in the recording reservation storage means 216 is updated, a new reservation is made using the information on the reservation recording start time and the reservation recording end time included in the reservation time information. It has a function of determining a recording start time and a new scheduled recording end time.

  For example, taking the case where the program title of the first program 101 is changed to “Imperial New Year” as an example, the recording reservation updating means 217 detects the third program 103 with a similar character string of the program title. , The broadcast time information (19:00:00 to 20:00) of the third program 103 is automatically saved in the recording reservation storage means 216 as new reservation time information. The reservation time information is also valid, and recording is performed based on both the new reservation time information and the old reservation time information.

  That is, in the example shown in FIG. 2, 19:00 to 22:00 are treated as effective reserved recording times, and the program is recorded in this time zone.

  Therefore, as shown as a recording result in FIG. 2, the third program 103 and the second program 102 are recorded in the storage medium 207 as the first recorded program 104 and the second recorded program 105, respectively. become.

  Hereinafter, the operation of the recording reservation updating means 217 when the reservation time information of the reserved program is updated will be further described with reference to FIGS. 1 and 2 using the flowcharts shown in FIGS.

  FIG. 3 is a flowchart for explaining the entire operation of the recording reservation update unit 217. When the program data 212 is updated, the recording reservation update unit 217 acquires new program information based on the new program data 212 ( Step S101).

  Then, using the title character string of the first program 101 stored in the recording reservation storage means 216, the first program 101 is identified from the new program information, and new broadcast time information relating to the first program 101 is detected (step S102).

  Thereafter, in step S103, the reservation time information relating to the first program 101 already stored in the recording reservation storage means 216 is read.

  In step S104, the new broadcast time information detected in step S102 is compared with the reservation time information read in step S103 to determine whether or not they match.

  If it is determined in step S104 that the comparison results match, it is determined that there is no change in the broadcast time information, the process proceeds to step S106, and a transition is made to the reserved recording standby state.

  On the other hand, when it is determined in step S104 that the comparison results do not match, that is, when the broadcast time zone of the reserved program is changed or the program title is changed, the broadcast time information is changed. The program proceeds to step S105, and program reservation combination processing is performed. Then, after performing the combination process, the process proceeds to step S106 and shifts to a reserved recording standby state. The program reservation combination process is to automatically set new recording reservation information using both the already set recording reservation information and the changed program information when the program information is changed after the recording reservation. It is processing. Note that the processing in steps S101 to S104 is executed for a program for which tracking recording for recording by automatically changing the reservation information in accordance with the change of the broadcast time information is set. Note that whether or not to perform tracking recording can be set by the user when recording reservation is set.

  FIG. 4 is a flowchart for specifically explaining the program reservation combining process in step S105.

  When the program reservation combining process is started, the time zones related to the first program 101 are extracted from the new broadcast time information and reservation time information, respectively, and are set as the changed time zone and the pre-change time zone, respectively (step S111).

  In this process, the changed time zone is extracted based on the program start time and program end time information included in the new broadcast time information, and the reserved recording start time and the reserved recording end time included in the reserved time information are also extracted. A process of extracting the pre-change time zone based on the information is included. Note that the program information includes only one of the program start time and the program end time, and may include broadcast time length information instead. In this case, the program start time and the broadcast time length, or the program end time may be included. And a broadcast time length can be combined to obtain a broadcast time zone.

  In step S112, the pre-change time zone and the post-change time zone are compared to determine whether or not there is an overlap between the two.

  If it is determined in step S112 that the time zones overlap, that is, the time change is small, the process proceeds to step S117.

  In step S117, the reservation recording start time included in the reservation time information, that is, the program start time before change, is compared with the program start time included in the new broadcast time information, that is, the program start time after change, and it is determined which is earlier. I do.

  If it is determined in step S117 that the pre-change program start time is earlier, the process proceeds to step S118, the pre-change program start time is set as a new reserved recording start time, and the process proceeds to step S119.

  On the other hand, if it is determined in step S117 that the changed program start time is earlier, the process proceeds to step S121, the changed program start time is set as a new reserved recording start time, and the process proceeds to step S119.

  In step S119, the recording end time included in the reserved time information, that is, the pre-change program end time, is compared with the program end time included in the new broadcast time information, that is, the post-change program end time, and a determination is made as to which is later. Do.

  If it is determined in step S119 that the pre-change program end time is later, the process proceeds to step S120, the pre-change program end time is set as a new reserved recording end time, and the process proceeds to step S130.

  On the other hand, if it is determined in step S119 that the changed program end time is later, the process proceeds to step S122, the changed program end time is set as a new reserved recording end time, and the process proceeds to step S130.

  In addition, since the process of step S117-S122 mentioned above will extend a reservation time slot | zone as a result, it can be called time slot | zone extension processing, and the broadcast time slot | zone of the reserved program moves back and forth. When the program data 212 is updated, there is a high possibility that the process will be executed.

  In the above description, the case where both the program start time and the program end time are changed has been described. However, only one of the program start time and the program end time may be changed. For example, when only the program start time is changed, the comparison result of the program end time before and after the change in step S119 is the same. In this case, either the program end time before or after the change is set as a new reserved recording end time.

  When only the program end time is changed, the comparison result of the program start time before and after the change in step S117 is the same. In this case, either the program start time before or after the change is set as a new reserved recording start time.

  On the other hand, if it is determined in step S112 that the time zones do not overlap, that is, the time change is large, the process proceeds to step S113.

  In step S113, the reserved recording start time included in the reserved time information, that is, the program start time before change is set as the first reserved recording start time, and the process proceeds to step S114.

  In step S114, the recording end time included in the reserved time information, that is, the pre-change program end time is set as the first reserved recording end time, and the process proceeds to step S115.

  Note that the processing in steps S113 and S114 is equivalent to the processing for maintaining the reserved recording start time and the reserved recording end time included in the reserved time information stored in the recording reservation storage unit 216 as they are.

  In step S115, the program start time included in the new broadcast time information, that is, the changed program start time, is set as the second reserved recording start time, stored in the recording reservation storage means 216, and the process proceeds to step S116.

  In step S116, the program end time included in the new broadcast time information, that is, the changed program end time, is set as the second reserved recording end time, stored in the recording reservation storage means 216, and the process proceeds to step S130.

  In addition, since the process of step S113-S116 mentioned above will divide and have a reservation time slot | zone as a result, it can be called a time slot | zone division | segmentation process, and a program title is changed so that a program title may be changed. When the data 212 is updated and another program is erroneously detected, there is a high possibility that the process is executed. Needless to say, as shown in FIG. 2, two time zones may continue.

  In step S130, the new scheduled recording start time and new scheduled recording end time set in the time zone extension process are stored in the recording schedule storage means 216 as new scheduled time information, or set in the time zone division process. The second reservation recording start time and the second reservation recording end time are stored in the recording reservation storage means 216 as new reservation time information, and the series of program reservation combination processing ends.

  As described above, by performing the time zone expansion process or the time zone division process, the newly set reservation time zone can surely include the reservation time zone that was initially set.

  In the case where the new reserved recording start time and the new reserved recording end time set in the time zone expansion process are stored, the reserved recording start time and the reservation included in the reserved time information already stored in the recording reservation storage unit 216 are stored. The recording end time is changed.

  Further, in the above description, the description has been made on the assumption that the reservation time information stored in the recording reservation storage unit 216 is updated for some reason. However, although the program title is changed in the new program information, If there is no change in the broadcast time and there is no program having a similar title character string in the vicinity of the reserved time zone stored in the recording reservation storage unit 216, the program is stored in the recording reservation storage unit 216 at the time of recording reservation. Recording is executed according to the information on the reserved recording start time and the reserved recording end time included in the reserved time information.

  Specifically, in step S102 shown in FIG. 3, the new broadcast time for the first program 101 is selected from the new program information using the title character string of the first program 101 stored in the recording reservation storage means 216. Even if the information is to be detected, the new broadcast time information cannot be detected because the program title is changed in the new program information. In that case, the process proceeds to step S103 with the result that detection is impossible, and in step S103, the reservation time information relating to the first program 101 already stored in the recording reservation storage means 216 is read.

  In this case, since no new broadcast time information has been detected, it cannot be compared with the reservation time information read in step S103 in step S104. In this case, however, the comparison result is assumed to be the same, and the broadcast time information is broadcast. When it is determined that there is no change in the time information, the process proceeds to step S106 to shift to the reserved recording standby state.

  As a result, the recording is executed according to the information of the reserved recording start time and the reserved recording end time included in the reserved time information stored at the time of the recording reservation in the recording reservation storage unit 216.

<A-3. Effect>
As described above, in the broadcast program recording / playback apparatus 100 of the first embodiment, when it is determined that the broadcast time information does not match the reserved time information and the time has been changed, the broadcast time information is based on the broadcast time information. Since the recording reservation information is automatically changed so that the broadcast program is recorded in both the broadcast time zone obtained in the above and the reserved time zone obtained based on the reservation time information, the program title of the target program is changed. Even when the broadcast time is not changed, the target program can be recorded even when it is mistaken for the change of the broadcast time.

  More specifically, the recording reservation information is automatically updated by the recording reservation updating means 217 so that the newly set reservation time zone surely includes the reservation time zone that was initially set. Later, even if the title of the reserved program is significantly changed and the broadcast time is not changed, the target program can be reliably recorded.

  In the above description, the title character string is used to identify the recording target program from the new program information, and the new broadcast time information related to it is detected. As long as the program can be specified, the method is not limited to the method using the title character string.

<B. Second Embodiment>
The second embodiment according to the present invention will be described below with reference to FIGS.

<B-1. Device configuration>
FIG. 5 is a block diagram showing a configuration of broadcast program recording / playback apparatus 200 according to the second embodiment of the present invention.

  As shown in FIG. 2, the broadcast program recording / playback apparatus 200 further includes the following configuration in addition to the configuration of the broadcast program recording / playback apparatus 100 described with reference to FIG.

  That is, a tuner 402 that receives an RF signal 201 received by an external antenna (not shown) and outputs a recording analog video / audio signal 403, and a recording analog video / audio signal output from the tuner 402 that is connected to the tuner 402. And an AV encoder 404 that receives the signal 403 and converts it into a recording digital video / audio signal 405 and outputs it, and the recording digital video / audio signal 405 output from the AV encoder 404 is provided to the stream controller 206. ing. The microcomputer 213 has a recording reservation update unit 417 and has a function of automatically changing the recording reservation information based on the program data 212 when the program information is changed.

  The recording reservation updating unit 417 is configured using an arithmetic processing unit in the microcomputer 213, an internal memory, or the like, and the function of the recording reservation updating unit 417 is realized by executing a computer program on the microcomputer 213. can do.

  In addition, the same code | symbol is attached | subjected about the structure same as the broadcast program recording / reproducing apparatus 100 shown in FIG. 1, and the overlapping description is abbreviate | omitted.

<B-2. Device operation>
Next, the operation of the broadcast program recording / playback apparatus 200 will be described using FIG. 6 and FIG.
FIG. 6 is a time chart schematically showing the reserved recording operation by the broadcast program recording / reproducing apparatus 200, and FIG. 6 is a flowchart for explaining the reserved recording operation by the broadcast program recording / reproducing apparatus 200.

  In FIG. 6, the program information at the time of recording reservation, the program information changed after the recording reservation, and the recording result are shown together. As an example, the first target program as the target of recording reservation is It is assumed that a program 301 and a second program 302 exist, and the first program 301 is broadcast on the program title “New Year special program” and channel 2 (ch2) as program information at the time of recording reservation. It has channel information and broadcast time information of broadcast start time 20:00 and broadcast end time 22:00, and the second program 302 is called “news 22:00” as program information at the time of recording reservation. It has a program title, channel information that is broadcast on channel 4 (ch4), and broadcast time information that is broadcast start time 22:00 and broadcast end time 24:00. And those who are.

  When recording the video / audio information constituting the program, the tuner 202 and 402 receive the RF signal 201 received by the external antenna (not shown), and the tuners 202 and 404 receive the recording analog video / audio signals 203 and 403, respectively. Convert.

  The recording analog video / audio signals 203 and 403 are subjected to data compression such as MPEG by the AV encoders 204 and 404, respectively, and converted into recording digital video / audio signals 205 and 405, respectively. The data is recorded on a storage medium 207 such as a drive (HDD). Note that the stream controller 206 can temporarily store the data streams output simultaneously from the AV encoders 204 and 404, and transfer the data streams to the storage medium 207 at a stage where the data streams have been stored to some extent.

  As described above, the broadcast program recording / reproducing apparatus 200 can simultaneously record two different video / audio signals, that is, broadcast programs.

  On the other hand, when the recorded program is played back, the stream controller 206 reads it from the storage medium 207 as a playback digital video / audio signal 208, converts it into a playback analog video / audio signal 210 by the AV decoder 209, and converts it into a television receiver (TV). ) Is sent to a display device (not shown) such as a display to view the recorded program.

  As described in the first embodiment, the program information included in the recording analog video / audio signal 203 is extracted as the program data 212 by the program data extraction device 211, and when the program data 212 is updated, the update data is included in the update data. Based on this, the recording reservation information stored in the recording reservation storage unit 216 is automatically updated by the recording reservation update unit 417.

  Hereinafter, an operation of the recording reservation updating unit 417 when the program data 212 is updated will be described.

<B-2-1. Operation when the broadcast time of a reserved program is changed>
First, prior to the description of the operation of the recording reservation update unit 417, a situation that cannot be handled by the broadcast program recording / playback apparatus 100 of the first embodiment will be described.

  Here, as shown in FIG. 6, based on the program table included in the program data 212, the user uses the first program 301 of channel 2 (program title is “New Year special program”) and the second program of channel 4. It is assumed that the program 302 (program title is “News 22:00”) is reserved for recording.

  Note that the broadcast start time of the first program 301 is 20:00 and the broadcast end time is 22:00, the broadcast start time of the second program 302 is 22:00 and the broadcast end time is 24:00. The scheduled recording start time and the scheduled recording end time are set for each program according to these times.

  Here, the program data 212 is changed after the above-described recording reservation, and as shown in FIG. 6 as the program information changed after the recording reservation, the first program 301 has a broadcast start time of 21:00 and a broadcast end time. It is assumed that the program is changed to 23:00 and becomes the third program 303.

  This means that the broadcast time zone has shifted, and in the recording reservation update unit 217 of the first embodiment, steps S117 to S117 in FIG. The time zone expansion process described as the process of S122 is performed, and as a result, 20:00 is set as the new scheduled recording start time, and 23:00 is set as the new scheduled recording end time.

  However, when this process is performed, the first program portion of the second program 302 or the second program portion of the third program cannot be recorded because it overlaps with the broadcast time zone of the second program 302. Will not be able to record.

  Further, even when a conventional method in which the reserved recording time is simply changed by following the movement of the broadcast time is adopted, both the first program 301 and the second program 302 cannot be recorded. Needless to say.

  However, in the broadcast program recording / playback apparatus 200 according to the second embodiment, even when the broadcast time of a program reserved for recording is changed and the time slot overlaps with another recording reservation, both programs can be recorded. it can.

  That is, the broadcast program recording / reproducing apparatus 200 has the tuner 202 and the AV encoder 204 as the first demodulation / compression means, and the tuner 402 and the AV encoder 404 as the second demodulation / compression means. Under circumstances where the broadcast time zones of two programs overlap due to a change in time, both programs can be recorded by recording through separate demodulation / compression means, and recording reservations can be made. In addition to the function of the recording reservation updating unit 217, the updating unit 417 has a function of distributing the recording reservation information to the first and second demodulation / compression units. Needless to say, the first and second demodulation / compression means can operate independently of each other.

  For example, as shown as the program information changed after the recording reservation in FIG. 6, the first program 301 is changed to the third program 303 with the broadcast start time changed to 21:00 and the broadcast end time changed to 23:00. In this case, the third program 303 is recorded via the tuner 202 and the AV encoder 204 from 21:00 to 23:00, and the tuner 402 and the AV are recorded from 22:00 to 24:00. The second program 302 is recorded via the encoder 404.

  Therefore, as shown as the recording results (1) and (2) in FIG. 6, the third program 303 and the second program 302 are stored as the first recorded program 304 and the second recorded program 305, respectively. It is recorded on the medium 207.

  Hereinafter, the operation of the recording reservation update unit 417 when the recording reservation information is distributed will be further described with reference to FIGS. 5 and 6 using the flowchart shown in FIG.

  FIG. 7 is a flowchart for explaining the entire operation of the recording reservation update unit 417. When the program data 212 is updated, the recording reservation update unit 417 acquires new program information based on the new program data 212 ( Step S201).

  Then, using the title character string of the first program 301 stored in the recording reservation storage means 216, the first program 301 is specified from the new program information, and new broadcast time information related thereto, that is, third Broadcast time information of the program 303 is detected (step S202).

  Thereafter, in step S203, reservation time information relating to the first program 301 already stored in the recording reservation storage means 216 is read.

  In step S204, the new broadcast time information detected in step S202 is compared with the reservation time information read in step S203, and it is determined whether or not they match.

  If it is determined in step S204 that the comparison results are the same, it is determined that there is no change in the broadcast time information, the process proceeds to step S208, and the state is shifted to the reserved recording standby state.

  On the other hand, if it is determined in step S204 that the comparison results do not match, it is determined that the broadcast time information has changed, and the process proceeds to step S205.

  Note that the processing in steps S201 to S204 is executed for a program for which tracking recording is set in which recording is performed by automatically changing reservation information in accordance with changes in broadcast time information. Note that whether or not to perform tracking recording can be set by the user when recording reservation is set.

  In step S205, the broadcast time information of the third program 303 detected in step S202 and the reserved time information of the second program 302 reserved for recording separately (confirm that the second program 302 has not been changed in time). To determine whether or not there is an overlap between the broadcast time zone of the third program 303 and the reserved time zone of the second program 302.

  Note that the comparison target in step S205 may be another reserved program that falls within a predetermined time range from a reserved program whose broadcast time information has been changed.

  If it is determined in step S205 that the broadcast time zone of the third program 303 does not overlap with the reserved time zone of the second program 302, the process proceeds to step S207 and the reserved time of the first program 301 is reached. A recording reservation change process is performed to change the information according to the broadcast time information of the third program 303.

  By this recording reservation changing process, it is possible to reliably record a program in which the broadcasting time has been changed but the broadcasting time zone does not overlap.

  After performing the recording reservation changing process, the process proceeds to step S208 to shift to a reserved recording standby state.

  In the above description, the recording reservation changing process in step S207 has been described as a process that simply changes the reserved recording time following the movement of the broadcast time. However, in FIG. Needless to say, the described program reservation combining process may be performed.

  On the other hand, if it is determined in step S205 that the broadcast time zone of the third program 303 and the reserved time zone of the second program 302 overlap at least partly, the process proceeds to step S206 to distribute the recording reservation information. (Reservation distribution process is called).

  In the reservation distribution process in step S208, the broadcast start time and broadcast end time of the third program 303 detected in step S202 are set as new reservation recording start time and reservation recording end time, respectively, and stored in the recording reservation storage means 216. It is determined that the third program 303 is recorded via the tuner 202 and the AV encoder 204 which are the first demodulating / compressing means.

  Also, for the second program 302 that overlaps with the third program 303, there is no change in the broadcast time information, so the second reserved time information that has already been saved in the recording reservation storage means 216 is not changed. It is determined that the second program 302 is to be recorded via the tuner 402 and the AV encoder 404 which are the demodulation / compression means.

  If it is determined in step S204 that the second program 302 also has a change in broadcast time information, the changed program broadcast time zone corresponding to the second program 302 and the third program 303 In step S205, whether or not there is an overlap with the broadcast time zone is determined. If it is determined that both overlap, the process proceeds to step S206, and the reservation distribution process may be executed.

  Information relating to the distribution of the third program 303 and the second program for the first and second demodulation / compression means determined in step S206 is also stored in the recording reservation storage means 216 as part of the reservation information. The

  Then, after performing the recording reservation changing process, the process proceeds to step S208 to shift to the reserved recording standby state.

<B-3. Effect>
As described above, in the broadcast program recording / reproducing apparatus 200 of the second embodiment, the new first reserved time information and the new first reservation time information are respectively obtained based on the first broadcast time zone and the second broadcast time zone. The first and second demodulator / second demodulator / second demodulator / operator that can operate independently of each other on the basis of the new first and second reserved time information are set. Since each recording is performed via the compression means, both the first and second target programs can be recorded even in a situation where the first and second broadcast time zones overlap due to a change in the broadcast time. It is possible to record a program as desired by the user.

  More specifically, the first and second demodulating / compressing means that can operate independently are provided, and the broadcast time zones of two programs with different recording reserved broadcast stations overlap by changing the broadcast time. Under the circumstances, the recording reservation update means 417 distributes the recording reservation information to the first and second demodulation / compression means, so that both programs can be recorded, and the user's request can be obtained. The program can be recorded.

  In recent years, broadcast program recording / playback apparatuses such as DVD recorders equipped with a plurality of demodulation / compression means already exist, and therefore, when the present invention is introduced into such equipment, there is almost no increase in cost.

  Further, in the second embodiment described above, the configuration in which the broadcast program recording / playback apparatus 200 includes the first and second demodulation / compression means is disclosed, but the built-in demodulation / compression means is the first demodulation / compression means. Even with only one configuration, the demodulation / compression means in the external broadcast program recording / playback apparatus connected by communication means such as LAN (Local Area Network) is used as the second demodulation / compression means, Even if the recording is performed on the storage medium in the external broadcast program recording / playback apparatus, the same effect can be obtained.

<C. Embodiment 3>
Hereinafter, Embodiment 3 according to the present invention will be described with reference to FIGS.

<C-1. Device configuration>
FIG. 8 is a block diagram showing a configuration of broadcast program recording / playback apparatus 300 according to the third embodiment of the present invention.

  As shown in FIG. 8, the broadcast program recording / playback apparatus 300 has a configuration in which a program alteration detection means 614 is further incorporated in the microcomputer 213 constituting the broadcast program recording / playback apparatus 100 described with reference to FIG.

  The program modification detection unit 614 is configured using an arithmetic processing unit in the microcomputer 213, an internal memory, or the like, and the function of the program modification detection unit 614 is realized by executing a computer program on the microcomputer 213. can do.

  In addition, the same code | symbol is attached | subjected about the structure same as the broadcast program recording / reproducing apparatus 100 shown in FIG. 1, and the overlapping description is abbreviate | omitted.

<C-2. Device operation>
Next, the operation of the broadcast program recording / playback apparatus 300 will be described using FIG. 9 and FIG.
FIG. 9 is a time chart schematically showing the reserved recording operation by the broadcast program recording / reproducing apparatus 300, and FIG. 10 is a flowchart for explaining the reserved recording operation by the broadcast program recording / reproducing apparatus 200.

  In FIG. 9, the program information and the recording result at the time of recording reservation for each week are written together for a so-called continuous program that is broadcast at approximately the same time zone on a fixed day of the week. It is assumed that the first program 501 of the first week and the second program 503 of the second week exist as target programs that are subject to recording reservation, and each program title is “Winter Sonata (19 ) ”And“ Winter Sonata (20) ”, both of which have broadcast time information of broadcast start time 20:00 and broadcast end time 21:00.

  In the third week, there is a third program 505 having broadcast time information of a broadcast start time of 20:00 and a broadcast end time of 21:00. The program title is “Beautiful Days (1 ) ", And not a program for which a reservation is desired.

  Here, the user makes a recording reservation for the first program 501, which is a continuous program such as a series drama, in a reserved time zone with a reserved recording start time of 20:00 and a reserved recording end time of 21:00, It is assumed that a setting is made to make a continuous recording reservation in the same time zone on a fixed day of the week.

  In this case, as shown in FIG. 9, at the time of the first week, the program data 212 extracted by the program data extraction device 211 includes the broadcast information of the first program 501, and is included therein Since no change has been made to the broadcast time information to be recorded, the recording reservation update means 217 determines that there is no change in the broadcast time information and performs recording according to the original recording reservation information, so that the first recorded The program 502 can be recorded on the storage medium 207.

  Also, as shown in FIG. 9, even at the time of the second week, the program data 212 extracted by the program data extraction device 211 includes the broadcast information of the second program 503, and is included therein. Since the broadcast time information has not been changed, the recording reservation update unit 217 determines that the broadcast time information has not been changed, and performs recording according to the original recording reservation information, whereby the second recorded program is recorded. 504 can be recorded in the storage medium 207.

  Here, the second program 503 in the second week is the last series, and the third program 505, which is a new continuous program, is started in the next week, that is, in the third week.

  The program title of the third program 505 is “Beautiful Days (1)”, which is different from the initially set program title of the first program 501.

  However, as described in the first embodiment, the recording reservation update unit 217 does not change the broadcast time although the program title is changed in the new program information, and the reservation stored in the recording reservation storage unit 216. When there is no program having a similar title character string in the vicinity of the time zone, the scheduled recording start time and the scheduled recording end time information included in the scheduled time information stored in the scheduled recording storage unit 216 when the scheduled recording is performed Since the recording is performed, the third program 505 is recorded in the storage medium 207 as it is. What prevents this is the program alteration detection means 614.

  The program reorganization detecting means 614 detects that the program has been reorganized by detecting the “end” symbol that means the end of the continuous program included in the character string of the program title.

  Here, the “end” symbol is not a normal character but a so-called external character (a character code different from a normal character string decided between the program sender and the receiver manufacturer). If there is, it is always added to the title character string, and in many cases, it is arranged next to the head of the title character string or other external characters.

  The program reorganization detection unit 614 can easily detect the “end” symbol by using a known technique. When the program reorganization detection unit 614 detects the “end” symbol, the microcomputer 213 Since the information of the continuous recording reservation after the next broadcast time instructed by the user (stored in the recording reservation storage means 216) is automatically discarded, the recording reservation update for the third program 505 in the third week is performed. The means 217 does not perform any processing, and the third program 505 can be prevented from being recorded in the storage medium 207.

  Hereinafter, the operation of the program alteration detection unit 614 will be further described with reference to FIGS. 8 and 9 and the flowchart shown in FIG.

  FIG. 10 is a flowchart for explaining the overall operation of the program alteration detection means 614. Here, the operation in the second week will be explained.

  When the program data 212 is updated, the program modification detection unit 614 acquires new program information based on the new program data 212 (step S301).

  In step S302, new title information related to the second program 503 is detected from the new program information using the title character string of the second program 503 stored in the recording reservation storage unit 216, and the process proceeds to step S303. move on.

  Note that the detection processing in step S302 may be performed on a program for which continuous recording reservation is set and recording is regularly reserved, such as weekly or daily. This can be easily realized by detecting the presence / absence of information relating to the continuous recording reservation included in the reservation information of each reserved program stored in the recording reservation storage means 216.

  In step S303, it is determined whether or not the title character string of the second program 503 includes a “end” symbol meaning the last series.

  If it is determined in step S303 that the “end” symbol is not included, it is determined that the second program 503 is not the last in the series, and the process proceeds to step S305 to enter a reserved recording standby state. .

  On the other hand, if it is determined in step S303 that the “end” symbol is included, the second program 503 is determined to be the last series, and the process proceeds to step S304.

  In step S304, the information related to the continuous recording reservation of the second program 503 stored in the recording reservation storage unit 216 is automatically discarded, and a new recording is performed so that the second program 503 is recorded only once. Set reservation information.

  By this process, the program of the last series can be recorded reliably.

  Thereafter, the process proceeds to step S305, and shifts to a reserved recording standby state. Note that these series of processes are performed before the broadcast of the second program 503 is started.

  The operation of the program alteration detection unit 614 will be described with reference to FIG. 9. Since the recording reservation information has been discarded after the recording of the second program 503 is completed, the reservation update unit 217 performs the operation at the time of the third week. Even if the third program 505 is detected from the recorded new program data 212, no further processing is performed, and the third program 505 is not recorded in the storage medium 207. The same applies to the fourth week and thereafter.

<C-3. Effect>
As described above, in the broadcast program recording / playback apparatus 300 according to the third embodiment, when the predetermined symbol indicating the end or start of a continuous program is included in the title information of the target program, the continuous reservation information Is automatically discarded, so that it is automatically prevented that recording of a continuous program unintended by the user is repeated endlessly.

  More specifically, since the program modification detection means 614 is built in the microcomputer 213 and the last time of the continuous program is detected, the information of the continuous recording reservation after the next broadcast time is automatically discarded. Recording of a continuous program unintended by the user is automatically prevented from being repeated endlessly, which makes the device easy to use for the user.

  In the above description, the program modification detection unit 614 detects the “end” symbol indicating the end of the continuous program included in the character string of the program title. A program reorganization may be detected by detecting a “new” symbol indicating the start of a new continuous program included in the character string of the program title.

  In that case, before the third program 505 is broadcasted, the program title of the third program 505 is detected based on the new program data 212, and if a “new” symbol is present there, continuous recording is performed. The reservation information is discarded and no new recording reservation information is set. Thereby, it is possible to prevent the continuous program after the third program 505 from being recorded.

  In the above description, the program reorganization detecting means 614 detects the end of the continuous program and at the same time automatically cancels the continuous reservation. However, the user is notified of the end of the continuous program and the continuous reservation is made. It may be configured to receive an instruction whether to cancel or change the target to a new continuous program (for example, the third program 505) and continue the continuous reservation.

It is a block diagram which shows the structure of the broadcast program recording / reproducing apparatus of Embodiment 1 which concerns on this invention. 4 is a time chart schematically showing a reserved recording operation by the broadcast program recording / reproducing apparatus in the first embodiment according to the present invention. It is a flowchart explaining the reservation video recording operation | movement by the broadcast program recording / reproducing apparatus of Embodiment 1 which concerns on this invention. It is a flowchart explaining the reservation video recording operation | movement by the broadcast program recording / reproducing apparatus of Embodiment 1 which concerns on this invention. It is a block diagram which shows the structure of the broadcast program recording / reproducing apparatus of Embodiment 2 which concerns on this invention. It is a time chart which shows typically the reservation video recording operation | movement by the broadcast program recording / reproducing apparatus of Embodiment 2 which concerns on this invention. It is a flowchart explaining the reservation video recording operation | movement by the broadcast program recording / reproducing apparatus of Embodiment 2 which concerns on this invention. It is a block diagram which shows the structure of the broadcast program recording / reproducing apparatus of Embodiment 3 which concerns on this invention. It is a time chart which shows typically the reservation video recording operation | movement by the broadcast program recording / reproducing apparatus of Embodiment 3 which concerns on this invention. It is a flowchart explaining the reservation video recording operation | movement by the broadcast program recording / reproducing apparatus of Embodiment 3 which concerns on this invention.

Explanation of symbols

100, 200, 300 Broadcast program recording / playback apparatus.

Claims (9)

A broadcast program reserved recording method for automatically changing preset recording reservation information based on electronic program data having broadcast time information of a television broadcast program,
(a) obtaining from the electronic program data broadcast time information of a target program that is a target of recording reservation;
(b) obtaining reservation time information of the target program from the recording reservation information;
(c) comparing the broadcast time information and the reserved time information;
(d) If the result of comparison in step (c) shows that the broadcast time information and the reserved time information do not match, the broadcast time zone obtained based on the broadcast time information and the reserved time A broadcast program reservation recording method comprising: automatically changing the recording reservation information so as to record the broadcast program including both of the reservation time slots obtained based on the information. The step (d)
Compare the broadcast time and the reserved time,
If both overlap, a new time zone defined by the earlier start time and the later end time is set as a new reservation time zone instead of the reservation time zone,
The method further comprises the step of maintaining the reserved time zone and additionally setting the broadcast time zone as a new reserved time zone when there is no overlap between the broadcast time zone and the reserved time zone. Broadcast program reservation recording method. A broadcast program reserved recording method for automatically changing preset recording reservation information based on electronic program data having broadcast time information of a television broadcast program,
(a) obtaining, from the electronic program data, first and second broadcast time information of first and second target programs of different broadcast stations that are subject to recording reservation, respectively;
(b) obtaining first and second reservation time information of the first and second target programs, respectively, from the recording reservation information;
(c) comparing the first and second broadcast time information with the first and second reservation time information, respectively;
(d) As a result of comparison in the step (c), a comparison result between the first broadcast time information and the first reserved time information, and the second broadcast time information and the second reserved time information. If at least one of the comparison results does not match, the first broadcast time zone obtained based on the first broadcast time information and the second broadcast time information are obtained. Performing a comparison with a second broadcast time period;
(e) As a result of the comparison in the step (d), when the first broadcast time zone and the second broadcast time zone at least partially overlap, the first broadcast time zone and the second broadcast time zone Based on the broadcast time zone, new first reserved time information and new second reserved time information are set, respectively, and the first and second target programs are set as the new first and second reserved programs. And a step of determining recording based on time information via first and second demodulation / compression means operable independently of each other, respectively. (f) As a result of the comparison in step (d), when the first broadcast time zone and the second broadcast time zone do not overlap,
The program includes a step of setting new reservation time information based on the first and / or second broadcast time information for a program whose broadcast time is shifted among the first and second target programs. 3. The broadcast program reserved recording method according to 3. A broadcast program reserved recording method for automatically changing preset recording reservation information based on electronic program data having broadcast time information and title information of a television broadcast program,
The recording reservation information includes continuous reservation information for reserving a continuous program that is continuously broadcast in almost the same time zone every day or on a specific day of the week,
(a) obtaining the title information of the target program that is the target of recording reservation from the electronic program data;
(b) determining whether or not a predetermined symbol indicating the end or start of the continuous program is included in the title information of the target program;
(c) A broadcast program reserved recording method comprising: automatically discarding the continuous reservation information when it is determined in step (b) that the predetermined symbol is included. When the predetermined symbol detected in the step (b) indicates the end of the continuous program,
6. The broadcast program reservation according to claim 5, wherein the step (c) includes a step of discarding the continuous reservation information and changing the recording reservation information of the target program so as to correspond to a single recording reservation. Recording method. A broadcast program recording / playback apparatus having a function of automatically changing preset recording reservation information based on electronic program data having broadcast time information of a television broadcast program,
The broadcast time information of the target program that is acquired from the electronic program data and is subject to recording reservation is compared with the reservation time information of the target program that is acquired from the recording reservation information, and the broadcast time information and the reservation are compared. When the time information does not match, the broadcast program is recorded in both the broadcast time zone obtained based on the broadcast time information and the reserved time zone obtained based on the reserved time information. A broadcast program recording / playback apparatus comprising recording reservation update means for automatically changing the recording reservation information. A broadcast program recording / playback apparatus having a function of automatically changing preset recording reservation information based on electronic program data having broadcast time information of a television broadcast program,
First and second demodulation / compression means operable independently of each other;
Obtained from the first and second broadcast time information of the first and second target programs of different broadcasting stations that are subject to recording reservation, respectively obtained from the electronic program data, and the recording reservation information, respectively. Comparing the first and second reservation time information of the first and second target programs, respectively, and comparing the first broadcast time information and the first reservation time information; and If at least one of the comparison results between the second broadcast time information and the second reserved time information does not match, the first broadcast time zone obtained based on the first broadcast time information And a second broadcast time zone obtained based on the second broadcast time information, and when the first broadcast time zone and the second broadcast time zone at least partially overlap, Before the first broadcast time and Based on the second broadcast time zone, new first reserved time information and new second reserved time information are set, respectively, and the first and second target programs are changed to the new first and second A broadcast program recording / reproducing apparatus comprising: recording reservation update means for determining recording based on the first and second demodulation / compression means based on the two reservation time information. A broadcast program recording / reproducing apparatus having a function of automatically changing preset recording reservation information based on electronic program data having broadcast time information and title information of a television broadcast program, wherein the recording Reservation information includes continuous reservation information that reserves a continuous program that is broadcast continuously every day or on a specific day of the week in almost the same time zone,
It is determined whether or not a predetermined symbol indicating the end or start of the continuous program is included in the title information of the target program that is the target of recording reservation acquired from the electronic program data. A broadcast program recording / reproducing apparatus comprising program alteration detection means for automatically discarding the continuous reservation information when it is determined that the symbol is included.

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