JP4178694B2 - Recording apparatus and recording method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording apparatus capable of recording, for example, image / audio information obtained by receiving a broadcast. And its It is about the method.
[0002]
[Prior art]
In recent years, VTRs (Video Tape Recorders) capable of recording video signals together with audio signals have become widespread.
Further, as this VTR, one having a tuner capable of receiving a television broadcast such as a terrestrial broadcast or a satellite broadcast is generally popular. In a VTR equipped with such a tuner for television, it is possible to record a video signal and an audio signal of a television broadcast selected for reception on a video tape. That is, a television broadcast can be recorded.
[0003]
The VTR as described above usually has a so-called “reserved recording” function. In the reserved recording, for example, necessary information including a channel of a program scheduled to be broadcast in the future, a recording start time, a recording end time, and the like is registered by a user operation. Then, according to the registered contents, reception and tuning of a required channel is automatically performed, and recording is performed from the required recording start time to the recording end time.
[0004]
[Problems to be solved by the invention]
By the way, as a matter of fact, the broadcast schedule of a program may not always proceed as scheduled.
For example, when a sports broadcast such as baseball is broadcast longer than the scheduled end time, the broadcast time of a subsequent program is shifted so as to be delayed by that amount, or a temporary news is broadcast while a certain program is being broadcast. In this case, the remaining contents of the program that has been broadcast until then are broadcast after the inserted special program is completed.
[0005]
For example, in general, even if the broadcast schedule of a broadcast program is changed temporarily as described above, the VTR operates to start and end recording according to the preset recording settings registered in advance. For this reason, the problem that the program which the user wanted to record cannot be recorded on the videotape from the beginning to the end has arisen before.
[0006]
Therefore, for example, some VTRs have a function capable of changing the setting contents of the recording reservation through, for example, a telephone line.
For example, when the broadcast time of a program broadcast after that is extended due to the extension of the broadcast time of a sports program, the user calls the telephone before the broadcast start time that is delayed. Then, the setting contents of the recording reservation are changed so as to lower the start and end times of the reserved recording. This makes it possible to record from the beginning to the end the program that the user wanted to record.
[0007]
However, it is normal that the setting contents of the recording reservation can be changed through the above-described telephone line only before the reservation recording is started.
In other words, for example, in the state where the reserved recording is started at the time specified by the setting contents of the first reserved recording registered and the current recording operation is being executed, for example, the reserved recording end time by an external operation It is not possible to delay the operation.
[0008]
[Means for Solving the Problems]
Therefore, the present invention takes into account the above-described problem, for example, even if there is a temporary change in the program broadcast schedule when recording is already being performed based on the pre-registered reserved recording setting contents, It is an object of the present invention to be able to change the execution contents of the program so that the program desired by the user can be recorded from the start to the end.
[0009]
For this reason, the recording apparatus is configured as follows.
That is, received program Recording means capable of recording the information on a predetermined recording medium; From the received signal Broadcast schedule change information indicating program broadcast schedule change Information detecting means for detecting a program and a program Storing means for storing reservation recording information having a required designation content for reservation recording, and controlling the recording means to execute a reservation recording operation specified by the reservation recording information stored in the storage means During the scheduled recording operation, Information detection means detect did In the case where the broadcast schedule change information indicates a delay in the broadcast time zone of the program during the reservation recording operation, after executing the recording end control for ending the reservation recording operation so far, The reservation recording information is changed so that the reservation recording operation is restarted when the broadcast start time of the delayed program is reached, and recorded by the reservation recording operation that has been executed until the recording end control is executed. Execute erase control to erase programs And a control means. As a recording method, Program based on program reservation record information stored in storage means A recording procedure for recording an image on a predetermined recording medium; From the received signal Broadcast schedule change information indicating program broadcast schedule change In the information detection procedure for detecting the program and the scheduled recording operation, if the broadcast schedule change information detected by the information detection procedure indicates a delay in the broadcast time zone of the program during the scheduled recording operation, The scheduled recording information is executed so that the scheduled recording operation is resumed when the broadcast start time of the delayed program is reached after the recording termination control is executed and the recording termination control is executed. Is executed, and the deletion control is executed so as to delete the program recorded by the reserved recording operation which has been executed until the recording end control is executed. The control procedure is configured to be executed.
[0010]
According to the configuration of the recording apparatus and the recording method, even when the reservation recording operation is being executed, Recieved By executing control on the recording means (recording operation of the recording procedure) based on the content of the broadcast schedule change information, it is possible to control to change the execution content of the subsequent reservation recording operation. As a result, for example, it is possible to record, for example, from the start to the end of a program that has been reserved and registered for the user to record.
[0016]
the above Of transmission / reception system and transmission / reception method Even by the configuration, the receiving device side receives the broadcast schedule change information transmitted from the broadcast side, so that the recording means is based on the contents of the broadcast schedule change information even when the receiving device side is executing the reservation recording operation. (Recording operation according to the recording procedure) By executing the control for the above, it is possible to perform control so as to change the execution contents of the subsequent reservation recording operation.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described.
Here, it is assumed that the transmission / reception system according to the present embodiment includes a broadcasting station side that performs digital satellite broadcasting and a VTR that can receive the broadcasting and record a broadcasting program.
The following description will be given in the following order.
1. Digital satellite broadcasting reception system
1-1. overall structure
1-2. Composition of VTR
2. Scheduled recording operation of this embodiment
2-1. First example
2-2. Second example
2-3. Third example
[0018]
1. Digital satellite broadcasting reception system
1-1. overall structure
FIG. 1 shows the overall configuration of a digital satellite broadcast transmission / reception system according to this embodiment. As shown in this figure, a digital satellite broadcast ground station 101 receives, for example, a material for television program broadcast from a television program material server 106 and broadcast schedule change information from a broadcast schedule change information server 107.
[0019]
The TV program material server 106 is a server that provides materials for ordinary broadcast programs. The material sent from the television program material server is video and audio data. For example, in the case of a music broadcast program, for example, a moving image and sound for promotion of a new song are broadcast using the data of the moving image and sound material of the television program material server 106.
[0020]
The broadcast schedule change information server 107 is a server that provides information indicating the contents related to the change of the broadcast schedule.
For example, in actual broadcasting, there is a case where the originally determined broadcasting schedule of a program is changed by extending a sports broadcast program or inserting a special news program. In this way, when there is a change in the broadcast schedule in a certain broadcast channel, the broadcast station side creates broadcast schedule change information having a required content corresponding to the change status, and sends it to this broadcast schedule change information server 107. Registration is made for this.
[0021]
As will be described later, this broadcast schedule change information is used for change control of the reserved recording operation in the receiving device (VTR 112). As a result, for example, even if there is a change in the broadcast schedule of a program for which the user has set reservation recording, recording can be performed so that the program from the start to the end of the program for which the user has set reservation recording fits on the recording medium. It becomes possible.
[0022]
The key information server 108 has key information used when the ground station 101 described below performs scramble processing on data to be transmitted. In the key information server 108, key information selected corresponding to the receiving device (VTR 112) owned by the user who pays the fee properly is registered. The key information registered here is used for execution control of the descrambling process on the VTR 112 side.
[0023]
The ground station 101 multiplexes and transmits the data provided from the TV program material server 106, the broadcast schedule change information provided from the broadcast schedule change information server 107, and the key information registered in the key information server 108. . In this multiplexing, the scramble process (encryption process) is performed on the data provided from the television program material server 106 as necessary.
In the present embodiment, the broadcast schedule change information transmission service is also charged, and therefore, the scramble processing is also performed for this broadcast schedule change information transmission.
Such scramble processing for each piece of information is performed using key information (processing control information) provided from the key information server 108.
[0024]
Here, for the sake of simplicity of explanation, only the TV program material server 106 and the broadcast schedule change information server 107 are shown as the server on the ground station 101 side. In addition to a server that provides GUI screen data for a user to perform various operations accompanying a broadcast program, a server for audio data for distribution for music distribution may be provided. That is, the server prepared on the ground station 101 side is not limited to the one shown in this figure.
[0025]
The ground station 101 multiplexes and transmits the data provided from the television program material server 106 and the broadcast schedule change information server 107. These television program material and data as broadcast schedule change information are encrypted using key information from the key information server 108 at the time of multiplexing.
Note that the data multiplexing method, encryption method, and the like from each server need not be particularly limited here. In addition, for example, data as broadcast schedule change information may be inserted into redundant bits of stream data as TV program material data.
An example of the internal configuration of the ground station 101 will be described later.
[0026]
A signal from the ground station 101 is received by the AV system 103 which is a receiving facility in each home via the satellite 102. A plurality of transponders are mounted on the satellite 102.
In this case, a parabolic antenna 111, a VTR (Video Tape Recorder) 112, a monitor device 114, and a personal computer 113 are prepared as the AV system 103 in each home.
[0027]
A parabola antenna 111 receives a signal broadcast via the satellite 102. This received signal is converted to a predetermined frequency by an LNB (Low Noize Block Down Converter) 115 attached to the parabolic antenna 111 and supplied to the VTR 112.
[0028]
As a schematic operation in the VTR 112, a signal of a predetermined channel is selected from a received signal, and video data and audio data as a program are demodulated from the selected signal to obtain a video signal and an audio signal.
A video cassette can be loaded into the VTR 112, and a video signal and an audio signal as a program obtained as described above can be recorded on the magnetic tape of the video cassette. It has become. That is, so-called recording can be performed.
[0029]
The VTR 112 has a reserved recording function. The recording operation by this reserved recording function will be described later.
[0030]
In addition, the VTR 112 according to the present embodiment receives broadcast schedule change information that is multiplexed and transmitted together with data as a program, and based on the contents of the broadcast schedule change information, for example, is currently being executed. The reservation recording operation can be changed.
[0031]
The video signal and audio signal of the program received and selected by the VTR 112 or the output of the video signal and audio signal reproduced from the tape cassette are supplied to the monitor device 114, for example. As a result, the monitor device 114 performs image display and audio output based on the video signal and audio signal output from the VTR 112.
[0032]
Further, the VTR 112 in this case can communicate with the accounting server 105 via the telephone line 104 as shown in the figure, for example. The VTR 112 is provided with a billing information memory 22 as will be described later.
For example, if the user makes a contract for viewing a pay program called so-called pay-per-view, the billing information set according to the viewing history of such a program is stored in the billing information memory 22. . Information in the billing information memory 22 is sent to the billing server 105 via the telephone line 104 at a predetermined opportunity and timing. The billing server 105 sets the amount according to the billing information that has been sent, charges the bill, and bills the user.
[0033]
In the present embodiment, as described above, receiving broadcast schedule change information is also a paid service. For this reason, the billing information memory 22 also stores information about the presence or absence of a contract for the broadcast schedule change information as billing information. If the user has a fee payment contract for using the broadcast schedule change information, the information is sent to the billing server 105, and the user is billed for the broadcast schedule change information service.
On the ground station 101 side, the key information server 108 transmits key information corresponding to the VTR 112 of the user who has signed the broadcast schedule change information service contract. For example, the VTR 112 of each household also receives this key information, and if there is key information corresponding to the VTR 112, the descrambling of the broadcast schedule change information is executed, and if there is no key information, the descrambling is not executed. To be. That is, the broadcast schedule change information can be properly used only in the VTR 112 owned by the user who made the contract.
[0034]
In this case, the VTR 112 is also connected to the Internet 109 as a network via the telephone line 104. Thus, for example, the VTR 109 can adopt a configuration that allows communication via the Internet 109.
[0035]
For example, the personal computer 113 can capture data as video signals and audio signals received by the VTR 112 and perform various required editing processes. It is also possible to control the operation of the VTR 112 by a user operation on the personal computer 113.
In addition, by connecting to the Internet 109 via the telephone line 104, communication via the Internet 109 can be performed.
[0036]
1-2. Composition of VTR
Next, among the devices forming the AV system 3 in FIG. 1, an internal configuration example of the VTR 112 serving as the recording device and the receiving device of the present embodiment will be described with reference to the block diagram of FIG.
[0037]
In the VTR 112 shown in FIG. 2, a reception signal converted into a predetermined frequency by the LNB 115 of the parabolic antenna 111 shown in FIG. 1 is input to the input terminal T 1, and this reception signal is supplied to the RF / detection unit 1. .
The RF / detection unit 1 performs RF signal processing on the input reception signal and selects a carrier as a reception frequency determined by control of the system controller 5 to perform, for example, Viterbi demodulation processing or error correction processing. As a result, stream data is obtained. The stream data is output as a detection output to the broadcast schedule change information detection unit 2 and the A / V signal detection unit 12.
[0038]
Here, the broadcast schedule change information detection unit 2 includes a data processing unit 3 and a descrambler 4.
The stream data as the detection output output from the RF / detection unit 1 to the broadcast schedule change information detection unit 2 is obtained by referring to, for example, a header in the stream data, for example, by processing as the data processing unit 3. It is determined whether broadcast schedule change information is inserted. If broadcast schedule change information is inserted, data processing for extracting broadcast schedule change information is performed. Note that the broadcast schedule change information obtained in the above processing stage is information that remains scrambled.
The descrambler 4 descrambles the broadcast schedule change information extracted as described above.
At this time, for example, the key information for descrambling transmitted in association with the broadcast schedule change information is collated with the key information for the broadcast schedule change information held in the system controller 5 on the VTR 112 side. If authentication is obtained, the processing by the descrambler 4 is executed. That is, it becomes possible to execute the descrambling process of the broadcast schedule change information only by the VTR 112 of the user who has contracted the broadcast schedule change information service and paid the fee appropriately.
Further, if necessary, the data processing unit 3 can execute a necessary process on the broadcast schedule change information subjected to the descrambling process.
The broadcast schedule change information obtained in this way is transmitted to the system controller 5. The system controller 5 can control the reserved recording operation as described later based on the broadcast schedule change information acquired in this way.
[0039]
The AV signal detection unit 9 also includes a data processing unit 10 and a descrambler 11.
The data processing unit 10 extracts a video data signal and an audio data signal as a broadcast program by referring to, for example, a header in the stream data as stream data output from the RF / detection unit 1 as a detection output. Hereinafter, the video data signal and the audio data signal as the broadcast program are collectively referred to as “A / V signal”.
The descrambler 11 descrambles the A / V signal extracted as described above, if necessary.
At this time, for example, the key information for descrambling transmitted corresponding to the broadcast program and the key information for the broadcast program held in the system controller 5 on the VTR 112 side are collated, and authentication is performed. If it is obtained, the processing by the descrambler 11 is executed.
The A / V signal that has been descrambled as described above is output to the A / V signal processing unit 12. In this case as well, the data processing unit 10 can execute a required process on the A / V signal subjected to the descrambling process, if necessary.
[0040]
The signal input / output unit 15 is an interface for inputting / outputting A / V signals, and includes, for example, a buffer 16 and a driver 17 as shown in the figure. Here, the signal input / output unit 15 executes processing on the A / V signal converted into digital data. Therefore, for example, when an A / V signal as an analog signal is input from an analog A / V signal input terminal (not shown), it is converted into a digital signal by an A / D converter (not shown), On the other hand, an A / V signal is input. Similarly, when an A / V signal is output from an analog A / V output terminal (not shown), it is converted into an analog A / V signal by a D / A converter (not shown).
[0041]
When an A / V signal as a digital signal is input to the signal input / output unit 15, the A / V signal is sent to a later-described A / V signal processing unit 12 through the buffer 16 under the control of the driver 17. Output.
When an A / V signal is output from the A / V signal processing unit 12, the A / V signal is output to the outside via the buffer 16 under the control of the driver 17. For example, if the output of the A / V signal is connected to the monitor device 114, the broadcast program received by the VTR 112 or the data reproduced from the tape cassette 28 is output from the monitor device 114 as image sound. Can do.
[0042]
The A / V signal processing unit 12 executes necessary signal processing for recording, reproduction, or display output / audio output for the input A / V signal. For this purpose, the A / V signal processing unit 12 includes a signal processing unit 13 and a modulation / demodulation processing unit 14.
In this case, an A / V signal can be input to the A / V signal processing unit 12 from the A / V signal detection unit 9 and the signal input / output unit 15. Necessary signal processing is performed on the input A / V signal. For example, in the signal processing unit 13, if the input A / V signal has been subjected to compression processing by a predetermined method, the expansion processing is performed.
For example, when recording, it is necessary to execute data compression processing, and when this data compression method is the same as the data compression method performed for the input A / V signal, In particular, there is no need to execute data decompression processing here.
The signal processing unit 13 can also execute signal processing for converting the input A / V signal into A / V signal data in a format capable of display output / audio output. The A / V signal that has been subjected to signal processing for output / audio output is supplied to the signal input / output unit 15 described above, and an A / V signal for display is output to the outside.
[0043]
Also, the modulation / demodulation processing unit 14 in the A / V signal processing unit 12 performs modulation processing for recording on the magnetic tape, and demodulation for obtaining information read from the magnetic tape as a reproduced A / V signal. Processing is executed.
For example, at the time of recording, the modulation / demodulation processing unit 14 performs data compression processing, addition of error correction codes, necessary modulation processing suitable for recording on a tape cassette, and the like as necessary. Is converted into a recording signal. The recorded A / V signal is output to the mechanical deck unit 18.
[0044]
The mechanical deck unit 18 includes a signal circuit unit 19 and a mechanism unit 20.
The mechanism unit 20 is a mechanism for pulling and ejecting the loaded tape cassette 28 into the main body, and for loading and unloading the magnetic tape wound around the tape cassette 28 loaded therein. It comprises a part. Also, a magnetic tape drive mechanism is provided for causing the magnetic tape to travel at a required speed during recording / reproduction or fast forward / rewind.
[0045]
The signal circuit unit 19 drives the magnetic head (not shown) based on the recording signal output from the A / V signal processing unit 12 during recording, so that the magnetic head applies the magnetic tape to the tape cassette 28. And operate so that data is recorded. As a result, A / V signal data is recorded on the magnetic tape of the tape cassette 28 by the magnetic information. That is, recording is performed.
[0046]
In the signal circuit unit 19, during reproduction, data as magnetic information read from the magnetic tape by the magnetic head is converted into an electric signal and output to the A / V signal processing unit 12 as a reproduction signal. To do.
[0047]
The reproduction signal input to the A / V signal processing unit 12 is subjected to required demodulation processing, error correction processing, data expansion processing, and the like in the modulation / demodulation processing unit 14 as necessary. The signal processing unit 13 performs necessary signal processing if necessary, and outputs the signal input / output unit 15 as an A / V signal for display output, for example.
[0048]
The system controller 5 includes, for example, a microcomputer, RAM, ROM, and the like, and controls the operation of each functional circuit unit in the VTR 112.
In this figure, as a configuration of the system controller 5, a CPU 6 as a microcomputer, a reserved recording memory 7, a clock 8a, and a timer 8b are illustrated.
[0049]
The CPU 6 executes arithmetic processing for various controls.
The scheduled recording memory 7 is composed of, for example, a nonvolatile memory, and stores scheduled recording setting information registered by the user's operation on the operation unit 24. In this case, as described above, at least information specifying the recording channel, the recording start time, and the recording end time is necessary as the reserved recording setting information. Such setting information may be included.
The clock 8a is for measuring the current time.
The timer 8b has a function of counting time under the control of the CPU 6.
[0050]
The reserved recording memory 7 and the clock 8a are necessary for realizing basic operations as reserved recording.
That is, the CPU 6 waits for the recording start time specified as the reserved recording setting information stored in the reserved recording memory 7. For example, if the time measured by the clock 8a reaches the recording start time of the scheduled recording setting information, control for selecting a channel specified by the reserved recording setting information is executed, Control for starting recording of the A / V signal of the selected channel is executed on the magnetic tape of the tape cassette 28 loaded. If the time counted by the clock 8a reaches the recording end time of the scheduled recording setting information, the recording operation that has been executed so far is stopped. This is the basic operation of reserved recording.
In the present embodiment, the system controller 5 determines the execution contents of the scheduled recording operation according to the change contents of the broadcast schedule indicated by the broadcast schedule change information received and acquired as described later. Control for changing can also be executed.
[0051]
In addition, the timer 8b is necessary when realizing a reserved recording operation as a second example of the present embodiment as will be described later.
[0052]
In addition, the VTR 112 of the present embodiment includes a communication line processing unit 21. In the case of the present embodiment, the communication line processing unit 21 has a function as a data interface for enabling local communication with the personal computer 113 via a predetermined data interface. It is said. In addition to this, it also has a function as a data interface for enabling data communication via the telephone line 104.
[0053]
In the present embodiment, one example of information communicated via the communication line processing unit 21 is billing information. As will be described later, the billing information is transmitted to the billing server 105 via the telephone line 104 as billing information stored in the billing information memory 22. Further, a control command for operating the VTR 112 can be transmitted from the personal computer 113, and this control command can also be received by the system controller 5 of the VTR 112 via the communication line processing unit 21.
The operation of the VTR 112 by the personal computer 113 is realized by the system controller 5 executing necessary control processing on the internal function circuit unit so that an operation in response to the received control command is obtained. .
In order to allow a control command to be transmitted from the personal computer 113 to the VTR 112, for example, application software for operating the VTR 112 is installed in the personal computer 113. Then, this application software may be activated so that, for example, the user performs an operation.
[0054]
The billing information memory 22 is a memory in which billing information is stored when the user receives some service that requires a charge when using the VTR 112.
As an example, for example, as described above, when using a so-called pay-per-view system that pays a fee for each program, billing information corresponding to the history of the viewed program is stored. In the present embodiment, information on whether or not the user pays a contract for a service that uses the broadcast schedule change information is also stored.
For example, the system controller 5 is configured to write the information as charging information in the charging information memory 22 when the user receives some service that requires a fee, for example. Then, the charging information written in the charging information memory 22 is transmitted from the communication line processing unit 21 to the charging server 105 via the telephone line 104.
In addition, for example, charging information that has become unnecessary after transmission to the charging server 105 can be deleted from the charging information memory 22 under the control of the system controller 5. .
[0055]
The billing information memory 22 may be provided with a predetermined type of non-volatile memory inside the VTR 112 or may be attached to or detached from the VTR 112 as a card type using a memory element such as a flash memory. It is good also as what takes a simple structure.
[0056]
The operation unit 24 is provided with various operators for allowing the user to perform various operations on the VTR 112. For example, various operators are provided for performing operations related to recording and reproduction of various tapes such as recording, reproduction, and fast forward / rewind. Further, in the present embodiment, an operator for making settings for reserved recording is also provided.
Operation information performed on the operation unit 24 is output to the system controller 5 via the user interface unit 23. The system controller 5 executes a required control process according to the input operation information. For example, if an operator for setting scheduled recording is operated, scheduled recording setting information having contents designated by this operation can be newly stored in the scheduled recording memory 7.
[0057]
The operation unit 24 here may be, for example, various keys provided on the main body of the VTR 112, or may be a remote controller that enables remote operation using infrared rays or radio waves, for example. . If the operation unit 24 is a remote controller, the user interface unit 23 has a configuration capable of receiving operation information by infrared rays or radio waves.
[0058]
The display unit 25 is provided in the main body of the VTR 112 and displays various necessary information such as the current recording / reproduction status and the channel currently being selected.
Such display is performed under the control of the system controller 5. Here, display data is output to the display unit 25 via the user interface unit 23, so that the display on the display unit 25 described above is performed. It is supposed to be realized.
[0059]
The power supply circuit unit 26 is provided to input a commercial AC power supply 27 and supply a DC operating power supply at a required level to each functional unit of the VTR 112. In addition, for example, in a state in which a standby power supply (not shown) is operating, the power supply circuit unit 26 is controlled by the system controller 5 in accordance with, for example, an operation for turning on / off the power or starting / ending recording reservation. The main power supply can be turned on / off.
[0060]
2. Scheduled recording operation of this embodiment
2-1. First example
As can be seen from the above description, in this embodiment, when it is determined that the broadcast schedule has been changed, broadcast schedule change information indicating the change contents is transmitted from the ground station 1 together with the program broadcast. Then, in the VTR 112, based on the broadcast schedule change information received and acquired, the reservation recording operation that has been executed so far is changed as described below. As a result, even if there is a temporary change in the broadcast schedule, the program that was originally intended to be recorded by the user registering it as scheduled recording information can be recorded on the tape from its start to its end. is there.
[0061]
By the way, the following situation can be considered when there is a possibility that the scheduled recording program registered by the user cannot be recorded from the start to the end by changing the originally scheduled broadcast schedule.
For example, in one case, the broadcast time of a certain program broadcast before the program for which scheduled recording was performed is extended, and the broadcast time zone of the subsequent program is lowered by the extended time It is. For example, this is the case when a sports broadcast such as baseball is extended.
For example, the program to be reserved recording was started at the scheduled time, but the program was interrupted by insertion of a special program such as special news, and the program to be reserved was recorded. The remaining content is a case where it is continuously performed after the inserted temporary program is finished.
[0062]
In view of the above circumstances, the broadcast schedule change information of the present embodiment is defined as follows.
First regulation. When the broadcast time of a program is to be extended, the changed broadcast start time and broadcast end time for the program after the extended program are transmitted as at least broadcast schedule change information.
In this case, the broadcast schedule change information is transmitted when the newly changed broadcast time is determined for each program after the extended program. Also, it is assumed that broadcast schedule change information for the program is transmitted at the timing when the program starts broadcasting according to the original broadcast schedule before the change.
Second regulation. When a special program is inserted in the middle of a program broadcast, information notifying the broadcast start of this special program is transmitted as broadcast schedule change information at the start of the special program, and this special program is transmitted at the end of the special program. Information notifying the end of broadcast of the program is transmitted as broadcast schedule change information.
In the following description, the broadcast schedule change information transmitted in accordance with the first rule is referred to as first broadcast schedule change information, and the broadcast schedule change information transmitted in accordance with the second rule is referred to as the second broadcast schedule change information. Information.
[0063]
The first example will be described as a reserved recording operation according to the present embodiment on the premise of the above-described provisions regarding the broadcast schedule change information.
The first example is a reserved recording operation corresponding to a case where a broadcast schedule is changed by extending the broadcast time of a certain program so that the broadcast time zone of a program after that is extended. .
[0064]
For example, FIG. 3A shows a broadcast schedule originally planned for a certain channel. For example, the program 1 is broadcast until the time t1, and the program 2 is scheduled to be broadcast from the time t1 to the time t2. For example, a program guide or the like is created according to this broadcast schedule. Therefore, if the user wants to make a reservation recording of the program 2, the broadcast recording channel of the program 2, the time t1 as the recording start time, and the time t2 as the recording end time are designated, and the reservation recording setting registration is performed.
Then, as shown in FIG. 3B, it is assumed that the broadcast time is extended for the program 1 that is actually broadcast, and ends at a time t3 that is later than the time t1, for example. In this case, the program 2 following the program 1 is broadcast over the time zone at time t4 when the scheduled broadcast time has elapsed from time t3. In other words, the broadcast time is deferred from the original.
In this case, as can be seen from FIG. 3, if the reserved recording is performed based on the reserved recording setting contents registered in advance, the recording operation is performed over the period from time t1 to time t2. The rear part broadcasted between time t2 and time t4 is not recorded.
[0065]
Therefore, in the present embodiment, a reserved recording operation as shown in FIG. 4 is performed in order to prevent the recording failure as described with reference to FIG. In FIG. 4, the reserved recording operation as a first example of the present embodiment is shown as procedures (1) to (5).
Procedure {circle around (1)} First, the VTR 112 starts reserved recording in accordance with the contents of the reserved recording setting previously registered by the user. For example, in the case of FIG. 3, the reserved recording starts from time t1.
Procedure {circle around (2)} In this case, when the reserved recording is started by the above procedure {circle around (1)}, on the broadcast side, the program broadcast so far is extended. However, there is a certain delay in transmission of the first broadcast schedule change information according to the first rule, which indicates the change contents of the broadcast schedule of the subsequent programs accompanying the program extension decision. For example, it is impossible to determine a change in the broadcast schedule of a subsequent program unless the broadcast side has to extend the program and determine its end time. Then, if the change content is determined, the first broadcast schedule change information is broadcast.
In this procedure (2), the first broadcast schedule change information transmitted in this way is detected from the received signal. At this time, since the reserved recording operation is already being executed, the recording contents so far are recorded in the tape cassette.
Procedure {circle around (3)} When the first broadcast schedule change information is detected by the above procedure {circle around (2)}, the VTR 112 first stops the recording operation performed so far. Here, the recorded content recorded by the recording operation so far is the content that is broadcasted by extending the program immediately before the program that the user intends to record. You can see it as unnecessary content. Therefore, the magnetic tape is rewound to the tape position when the reserved recording is started by the previous procedure (1). And it waits in the state of a recording standby until it reaches the broadcast start time after the change about the next program currently extended as shown by the received broadcast schedule change information.
[0066]
Procedure {circle over (4)} Then, when the broadcast start time after the change for the next program that is currently extended is reached, the recording operation is resumed. By this recording operation, recording is performed from the start of broadcasting of the program next to the extended program. At this time, recording is performed by overwriting and erasing the previously recorded contents in the procedure (1).
Procedure (5) In the state where the recording operation according to the procedure (4) is being executed, at the broadcast end time after the change for the next program currently extended indicated by the received first broadcast schedule change information When this happens, the recording operation so far is terminated.
[0067]
In the present embodiment, as described above, the reserved recording operation is changed in response to the reception of the first broadcast schedule change information so that the program that the user originally wanted to record can be recorded from the start to the end. . The reserved recording operation can be executed by receiving the broadcast schedule change information even after the reserved recording based on the reserved recording setting contents registered by the user is started.
Further, according to the above-described reserved recording operation, the recording content of the extended program is overwritten and erased by including the operation of rewinding the magnetic tape. Thereby, for example, the recording time of the tape cassette is not wasted. In addition, since a portion unnecessary for the user is not recorded, the recorded content of the tape cassette is also suitable for the user's intention.
[0068]
Next, the processing operation for realizing the timer recording operation as the first example shown in FIG. 4 will be described with reference to the flowchart of FIG. The processing operation shown in this figure is executed by the system controller 5.
[0069]
In the process shown in FIG. 5, first, in step S101, the process waits until the recording start time is reached. Here, it is waiting for reaching the earliest recording start time among the recording start times specified as the reserved recording setting information registered in the reserved recording memory 7.
If, for example, the time measured by the clock 8a reaches the reserved recording start time that was waiting in step S101, the system controller 5 proceeds to step S102.
In step S102, a recording operation as a reserved recording is started. That is, control is performed so that a channel designated by the scheduled recording setting information stored in the scheduled recording memory 7 is received, and an A / V signal obtained by receiving this channel is recorded on the tape cassette. Start executing the process.
[0070]
In the next step S103, it is determined whether or not the first broadcast schedule change information is detected from the received signal. Here, if the first broadcast schedule change information is not detected, the process proceeds to step S105. On the other hand, if broadcast schedule change information is detected, the process proceeds to step S104.
Note that in this step S103, the second broadcast schedule change information according to the second rule is not a detection target, and even if the second broadcast schedule change information is detected, the processing of this step S103 is negative. The result is obtained. And when the 2nd broadcast schedule change information is detected, the process of FIG. 9 demonstrated later is performed.
[0071]
In step S104, a reservation recording setting content change process is executed.
In the case of FIG. 4, the reservation recording setting content changing process as step S <b> 104 is a process for realizing the operation as the procedure (3). This process is shown in the flowchart of FIG.
[0072]
In the process shown in FIG. 6, the system controller 5 first executes a control process in step S201 for stopping the recording operation that has been executed so far. Then, in the next step S202, rewinding is performed to the tape position at the start of the recording operation executed in step S102 of FIG.
For example, the system controller 5 can recognize an address on the magnetic tape, that is, a tape position from a reproduction signal read from the magnetic tape, for example. Therefore, the system controller 5 stores information on the tape position at the start of recording by the processing in step S102, and executes control processing to rewind the magnetic tape to the stored tape position. To do.
[0073]
Then, in the next step S203, the reservation recording setting information used for the reservation recording operation so far among the reservation recording setting information currently stored in the reservation recording memory 7 is changed, that is, rewritten and re-registered. I do.
This process is executed based on the content of the first broadcast schedule change information detected in the previous step S103. That is, rewriting is performed so that the broadcast start time and the broadcast end time indicated by the detected first broadcast schedule change information become the recording start time and the recording end time of the reserved recording setting information, respectively, and re-registration is performed. Is.
[0074]
In the next step S205, the process waits until the recording start time designated by the reserved recording setting information rewritten in step S204 is reached, and it is determined that the recording start time has been reached. Then, recording is started in step S206. The processing in step S206 corresponds to procedure (4) in the case of FIG. Then, when the process of step S206 ends, the process proceeds to step S105 of FIG.
[0075]
In step S105, it is determined whether or not the recording end time set as the reserved recording setting information has elapsed at the present time. If the recording end time has not elapsed, the process returns to step S103. If it is determined that the recording end time has been reached, the process proceeds to step S106.
In step S106, a control process for ending the recording operation so far is executed.
[0076]
As the process according to FIGS. 5 and 6, for example, when the first broadcast schedule change information is not detected until the recording operation starts and ends in step S102, the process of step S104 is executed. Therefore, the scheduled recording is executed according to the scheduled recording setting information registered in advance by the user.
On the other hand, when the first broadcast schedule change information is detected after the recording operation is started in step S102, the process of step S104 is executed, as shown in FIG. The reserved recording operation as the present embodiment is realized.
[0077]
Further, for example, there may be a case where, after actually determining to extend a program once to a certain time, it is further determined to extend the program. In such a case, each time the extension is decided, the first broadcast schedule change information having a different content is transmitted. However, the process shown in FIG. Is possible.
That is, for example, if the first broadcast schedule change information for the second time is detected after executing the process of step S104 based on the detection of the first broadcast schedule change information for the first time and restarting the recording, this 2 In response to the detection of the first broadcast schedule change information for the first time, the process of step S104 is executed again. Therefore, the recorded content recorded by the process of step S104 based on the first detection of the first broadcast schedule change information is rewound to the start position. Then, since the recording is resumed thereafter, the program desired by the user can be reserved and recorded so that no unnecessary recording portions are left.
[0078]
Note that the actual processing in step S104 is not limited to the processing for realizing the operation shown in FIG. That is, the reserved recording operation corresponding to the case where the program is extended is not limited to the operation and procedure shown in FIG. For example, the recording operation so far may be simply stopped when the first broadcast schedule change information is received, and the recording may be resumed when the newly changed recording start time is reached. In this case, the recorded contents of the extended program will remain to some extent, but the control processing for rewinding is not necessary, so that the processing and the operation of the device can be made lighter. .
[0079]
2-2. Second example
Subsequently, the reserved recording operation of the present embodiment as a second example will be described. The second example corresponds to a case where a special program such as special news is inserted into a certain program. This is a reserved recording operation corresponding to the case where the broadcast schedule is changed so that the broadcast time zone of the program after that is deferred.
[0080]
FIG. 7 shows a reservation recording operation example as such a second example. For example, as an original schedule, as shown in FIG. 7A, the program 1 is broadcast in the time zone from time t1 to time t3. Then, in order to perform the reserved recording of the program 1, it is assumed that the reserved recording setting information is registered by designating the time t1 and the time t3 as the recording start time and the recording end time, respectively.
[0081]
Here, as a situation when the program 1 is actually broadcast, it is assumed that the program 1 that has been broadcast so far is interrupted and the program 2 that is a special program is inserted at the time t2 after a lapse of time t1. That is, as shown in FIG. 7B, the program 1 is switched to the program 2 after broadcasting up to the portion of the program 1-a which is the content from the start time t1 to the time t2. This program 2 ends at time t4, and after time t4, the content of program 1-b, which is the rest of program 1, is broadcast. Then, the program 1-b ends at time t5.
[0082]
Also in this case, if the reserved recording operation is performed based on the reserved recording setting information registered in advance by the user, it is not possible to record all of the latter program 1-b.
[0083]
Therefore, in this embodiment, the reserved recording operation is executed as shown in steps (1) to (5) in FIG.
Procedure {circle around (1)} Recording starts from the recording start time t1 specified by the reserved recording setting information registered in advance by the user.
Procedure {circle around (2)} When the insertion of the program 2 is started at time t2, the broadcast side transmits the second broadcast schedule change information for notifying the start of the program 2, which is the temporary program, according to the second rule. . Then, the VTR 112 receives and detects the second broadcast schedule change information.
Procedure {circle around (3)} When the second broadcast schedule change information is detected by the above procedure {circle around (2)}, the recording operation so far is stopped, and the recording standby state is awaited.
Procedure {circle around (4)} The second broadcast schedule change information for notifying the end of the program 2 is transmitted from the broadcast side at the timing when the program 2 ends at the time t4. The VTR 112 receives and detects the second broadcast schedule change information. Then, the recording operation is resumed in response to the detection of the second broadcast schedule change information. Thereby, the recording of the program 1-b, which is the latter half of the program 1, is started.
Step (5) After resuming the recording by the above step (4), the VTR 112 starts the recording start time t3 of the reserved recording setting information first registered by the user, that is, the broadcast time of the program 2 from the end time of the original program 1 The time t5 obtained by shifting the minutes is calculated. This time t5 is the time when the program 1-b ends. When this time t5 is reached, the recording operation is terminated.
[0084]
By performing the scheduled recording operation according to the above-described procedure, in this embodiment, even if a special program is inserted during the scheduled recording operation, the program originally reserved for recording by the user from the beginning is recorded. It becomes possible to record to the end.
In the above procedure, the recording operation up to that point is stopped at the timing when the special program is started, so the special program is not recorded. For example, the end of the first half of the program reserved for recording and the beginning of the second half of the program are recorded. It is also possible to record in such a way that it is almost connected.
[0085]
Next, the processing operation for realizing the reserved recording operation as the second example described with reference to FIG. 7 is shown in the flowchart of FIG. Note that the processing shown in this figure is also executed by the system controller 5. Further, the processing shown in this figure is started in a state where the recording operation is already being executed based on the reserved recording setting information registered by the user.
[0086]
In the process shown in FIG. 8, it is first determined in step S301 whether or not the second broadcast schedule change information for notifying the start of the special program is detected. If a negative result is obtained, step S308 is performed. Proceed to
[0087]
Step S308 will be described first. Here, it is determined whether or not the recording end time designated by the reserved recording setting information corresponding to the program currently being recorded has been reached. If it is determined that the recording end time has not been reached, the process returns to step S301. On the other hand, if it is determined in step S308 that the recording end time has been reached, the process proceeds to step S309 to execute processing for ending the reserved recording operation so far, and exits this routine.
[0088]
Therefore, for example, if recording is started in accordance with the scheduled recording setting information set by the user and no special program is inserted and the second broadcast schedule change information is not detected, steps S302 to S307 described below are performed. This process is not executed, and the recording ends at the recording end time specified by the reserved recording setting information set by the user. As a result, the program reserved for recording by the user can be recorded from the start to the end.
[0089]
On the other hand, when the second broadcast schedule change information notifying the start of the special program is detected in step S301, the process proceeds to step S302 and subsequent steps.
In step S302, first, the control operation for stopping the recording operation so far and setting the recording standby state is executed.
In subsequent step 303, at the timing of stopping the recording operation in step S302, the timer 8b provided in the system controller 5 starts counting the recording stop time sT.
[0090]
In the next step S304, it waits for the detection of the second broadcast schedule change information notifying the end of the special program. Note that the processing up to step S304 corresponds to the operation up to step (3) in the case of FIG.
When it is determined in step S304 that the second broadcast schedule change information for notifying the end of the special program has been detected, the process proceeds to step S305, and control for resuming the recording operation is executed.
Then, in synchronization with the resumption timing of the recording operation in step S304, the recording stop time sT is stopped by the subsequent processing in step S306.
[0091]
In the next step S307, processing for changing the recording end time of the reserved recording setting information corresponding to the current reserved recording operation is executed. This process can be expressed as eT ← eT + sT where the recording end time is eT. That is, the time obtained by adding the time as the count value of the recording stop time sT to the recording end time eT before the change is set as the updated recording end time eT.
Then, rewriting is performed so that the recording end time of the reserved recording setting information corresponding to the current reserved recording operation becomes the recording end time eT updated as described above. That is, the contents of the reserved recording setting information according to the insertion of the special program are changed.
After the process of step S308 is completed, the process proceeds to step S308. Here, when the process proceeds to step S308 through the processes of steps S302 to S308, it is determined in step S308 whether or not the recording end time of the scheduled recording setting information changed in the previous step S307 has been reached. become.
[0092]
According to this process, for example, after the temporary program is inserted once and the processes of steps S302 to S308 are executed, the contents of the program reserved for recording due to the insertion of the temporary program are further divided. Even if it becomes, by performing steps S302 to S308 again, as a result, the contents of the program reserved for recording are recorded on the tape cassette.
[0093]
Note that the transmission of the second broadcast schedule change information for actually notifying the start of the special program may be received and detected at the VTR 112 side with a certain delay. In this case, the special program is recorded on the magnetic tape. It will be recorded for a long time. Therefore, in the process of step S302, it is conceivable that the magnetic tape is rewound to the tape position where the temporary program is recorded. For this purpose, for example, it is conceivable to transmit the start time as the second broadcast schedule change information notifying the start of the special program. In this way, for example, the tape rewind amount can be calculated based on the time difference between the start time of the special program indicated by the second broadcast schedule change information and the clock 8a on the VTR 112 side.
[0094]
In addition, if the second broadcast schedule change information for notifying the start and end of the special program is included in the start time and end time of the special program, the time difference between the start time and the end time can be calculated. Thus, the broadcast time of the temporary program can be obtained, and the recording end time can be corrected as step S307 using the broadcast time of the special program. Therefore, in this case, there is no need to execute processing for counting the recording stop time sT by the timer 8b.
[0095]
2-3. Third example
Next, a reservation recording operation as a third example will be described.
In the first example and the second example described above, the scheduled recording operation that has been executed is changed based on the broadcast schedule change information transmitted from the broadcast side. For the purpose of the invention, considering that it is possible to change the reservation recording operation based on the information from the outside even while the reservation recording is being executed, the broadcast schedule change information is not necessarily transmitted from the broadcast side. It is not limited.
[0096]
Therefore, as a third example, a case where the reserved recording operation currently being executed is changed by an operation from the personal computer 113 will be described.
FIG. 9 is a flowchart showing the processing operation of the system controller 5 for realizing the reserved recording operation as the third example. In order to execute the processing shown in this figure, it is necessary to connect the VTR 112 and the personal computer 113 as described with reference to FIG. The personal computer 113 is connected to the VTR 112 via a predetermined data interface via the communication line processing unit 21 shown in FIG. As a result, a control command for operating the VTR 113 can be transmitted from the personal computer 113.
In addition, the control command transmitted from the personal computer 113 here is, for example, reservation recording setting information modified in accordance with a change in a program broadcast schedule. Or you may be the information of the content according to the 1st, 2nd broadcast schedule change information demonstrated in the previous 1st example and 2nd example.
The processing shown in this figure is also started in a state where the recording operation is already being executed based on the reserved recording setting information registered by the user.
[0097]
In the process shown in FIG. 8, it is determined whether or not a control command transmitted from the personal computer 113 is received in step S401 under a state in which the reserved recording operation is being executed. If it is determined that no control command is received, the process proceeds to step S404.
[0098]
In step S404, it is determined whether or not the recording end time of the reserved recording setting information corresponding to the current reserved recording operation stored in the reserved recording memory 7 has been reached. If it is determined that the scheduled recording end time has been reached, the process proceeds to step S405 to end the recording operation. If it is determined that the scheduled recording end time has not been reached, the process proceeds to step S401.
[0099]
On the other hand, if it is determined in step S401 that the control command has been received, the process proceeds to step S402. In step S402, the contents as the reserved recording setting information are extracted and acquired from the received control command. Then, in the next step S403, a reservation setting content change process is performed based on the acquired reservation recording setting information.
Here, the process of step S403 is not described in detail, but based on the contents of the acquired reservation recording setting information, change control for the execution contents of the required reservation recording operation is appropriately stored in the reservation memory 7. The reserved recording setting information may be rewritten. For example, in addition to the process according to step S104 in the first example, the process according to steps S302 to S307 as the second example may be executed.
[0100]
Then, when the process of step S403 is completed, the process proceeds to the process of step S404 described above. Here, when the process from step S402 to S403 is followed to step S404, if the reservation recording setting information stored in the reservation memory 7 is changed by the process of step S403, the change is made. It is determined whether or not the recording end time of the reserved recording setting information has been reached.
[0101]
In the third example, the reservation recording operation is changed based on the control command transmitted from the personal computer 113. For example, instead of the personal computer 113, a user through a telephone line is used. The reservation recording operation as described above may be changed even during execution of the reservation recording operation by an operation or the like.
[0102]
Further, in the above embodiment, a system corresponding to digital satellite broadcasting is exemplified as a broadcasting system, but the present invention can also be applied to an analog broadcasting system. In this case, for example, when transmitting the broadcast schedule change information used in the first example and the second example, it is conceivable to superimpose on the broadcast signal in a form according to a so-called G code, for example.
Further, the present invention can be applied not only to a configuration for recording a broadcast as, for example, a video image / audio signal, but also to a case in which a broadcast program or a data broadcast using only audio is reserved for recording.
[0103]
Further, the recording apparatus and the receiving apparatus according to the present invention are not limited to the VTR, and can be applied to, for example, a video recorder that records on a predetermined type of disk-shaped recording medium.
In this case, for example, as described in the first example, the following may be performed in order to delete the recorded part of the extended program.
For example, in the case of a disc on which management information for managing recording / reproduction of the disc is also recorded, the management information is rewritten so that the area where the extended program is recorded is managed as an unrecorded area. Is. Thereby, the area where the extended program is recorded is regarded as being erased and is managed as an area where data can be recorded.
[0104]
【The invention's effect】
As described above, according to the present invention, even during a reserved recording (reserved recording) operation, for example, broadcast schedule change information transmitted from the broadcast side or a personal computer or the like is transmitted via a predetermined interface. By accepting incoming control commands (change instruction information) and changing the subsequent scheduled recording operation based on this, even if there is a change in the broadcast schedule, the program registered by the user from the start to the end is recorded. It becomes possible to record.
For example, in the past, during execution of the scheduled recording operation, it was impossible to change the execution contents of the scheduled recording operation. Even if there is a change, it is possible to significantly reduce the possibility that the scheduled recording will fail.
In addition, in the configuration in which the reservation recording operation is changed based on the broadcast schedule change information transmitted from the broadcast side, after the broadcast schedule change information is obtained, the reservation recording operation is automatically changed thereafter. Is called. In this case, since the user does not need to perform any operation, for example, when the user operates a VTR via a telephone line or the like, convenience can be obtained.
[0105]
Further, in the configuration in which the scheduled recording operation is changed based on the broadcast schedule change information transmitted from the broadcast side, when the broadcast schedule change information indicates a delay in the broadcast time zone of the broadcast program, By executing the recording end control for temporarily ending the reserved recording operation, and then restarting the reserved recording operation when the broadcast start time of the delayed broadcast program is reached, the delay of this broadcast program is resumed. It is possible to avoid recording the recorded contents continuously. Thereby, for example, the recording capacity of the recording medium can be saved.
Further, when the reserved recording operation is temporarily terminated, the recording contents so far are erased, so that the recording capacity can be further saved. Since contents unnecessary for the user are deleted from the recording medium, it is possible to obtain a recording medium on which contents suitable for the user's intention are recorded without any particular editing. Here, if the recording medium is a tape-shaped recording medium, in order to erase the recorded contents, the tape-shaped recording medium may be rewound from the tape position when the reserved recording operation is temporarily terminated. It can be realized by a simple control process.
[0106]
When the broadcast schedule change information indicates the insertion of the special program, the recording operation so far is terminated in response to the start of the special program insertion, and then the program to be broadcast after the special program is inserted is recorded. By restarting the program, the temporary program is not recorded. Therefore, in this case as well, the recording capacity of the recording medium can be saved, and the recorded program whose broadcast time zone is divided by the temporary program can be connected and recorded.
[0107]
In the present invention, the broadcast schedule change information transmitted from the broadcast side is scrambled and transmitted together with key information unique to each receiving device (recording device), for example. If there is no key information, the receiving device side Therefore, it is impossible to properly descramble and use the broadcast schedule change information.
Thereby, for example, on the broadcast side, it is possible to perform an effective operation such as providing broadcast schedule change information as a pay service.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a construction example of a broadcasting system according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating a configuration example of a VRT according to the present embodiment.
FIG. 3 is an explanatory diagram showing a broadcast schedule change mode corresponding to a reserved recording operation as a first example of the embodiment;
FIG. 4 is an explanatory diagram showing a reserved recording operation example as a first example of the embodiment;
FIG. 5 is a flowchart showing a processing operation for realizing a reserved recording operation as a first example;
FIG. 6 is a flowchart showing a processing operation for realizing a reserved recording operation as a first example;
FIG. 7 is an explanatory diagram showing a reserved recording operation example as a second example;
FIG. 8 is a flowchart for realizing a reserved recording operation as a second example;
FIG. 9 is a flowchart for realizing a reserved recording operation as a third example;
[Explanation of symbols]
1 RF / detection unit, 2 broadcast schedule change information detection unit, 3 data processing unit, 4 descrambler, 5 system controller, 7 reserved recording memory, 8a clock, 8b timer, 9 A / V signal detection unit, 10 data processing unit 11 Descrambler, 12 A / V signal processing unit, 13 Signal processing unit, 14 Modulation / demodulation processing unit, 15 Signal input / output unit, 16 Buffer, 17 Driver, 18 Mechanical deck unit, 19 Signal circuit unit, 20 Mechanical unit, 21 communication line processing unit, 22 billing information memory, 23 user interface unit, 24 operation unit, 25 display unit, 26 power supply circuit unit, 27 commercial AC power supply, 28 tape cassette, 101 ground station, 102 satellite, 103 receiving equipment (AV System), 104 telephone line, 105 billing server, 106 TV program material server, 107 broadcast schedule change information service Bas, 108 key information server, 109 Internet, 111 parabolic antenna, 112 VTR, 113 personal computer, 114 monitor device

Claims (7)

A recording means capable of recording the received program on a predetermined recording medium;
Information detecting means for detecting broadcast schedule change information indicating a change in program broadcast schedule from the received signal ;
Storage means for reservation recording information with a predetermined specified contents for reserving recording the program is stored,
The recording means is controlled so that the reservation recording operation specified by the reservation recording information stored in the storage means is executed. During the reservation recording operation, the broadcast schedule change detected by the information detection means is performed. When the information indicates a delay in the broadcast time zone of the program during the reserved recording operation, the recording end control for ending the reserved recording operation so far is executed, and the delay is performed after the recording end control is executed. The reservation recording information is changed so that the reservation recording operation is resumed when the broadcast start time of the program is reached,
Control means for executing erasure control so as to erase the program recorded by the reservation recording operation that has been executed until the recording end control is executed ;
Ru equipped with a recording device. The recording medium is a tape-shaped recording medium,
The control means includes
As the erase control, the tape position at which the recording end control reservation recording operation which is stopped by has been initiated, so that the recording start position when the next reservation recording operation restart, winding the tape-shaped recording medium To perform control to return ,
The recording apparatus according to claim 1. The control means includes
When the broadcast schedule change information indicates the insertion of a special program, a recording end control is executed to end the recording operation so far in response to the start of the special program insertion. make changes to the reservation record information so that the recording of the program is resumed to be,
The recording apparatus according to claim 1. Descrambling means for performing descrambling processing on scrambled broadcast schedule change information;
The descrambling process in the descrambling means is performed using the process control information that is transmitted together with the broadcast schedule change information and is used for execution control of the descrambling process unique to the recording apparatus and unique to the recording apparatus. Descrambling control means for controlling the execution of
A recording apparatus according to claim 1, Ru comprising a.   The information detecting means includes
  Detecting the broadcast schedule change information from a signal transmitted from outside through a predetermined interface;
  The recording apparatus according to claim 1. A recording procedure for recording the program on a predetermined recording medium based on the reserved recording information of the program stored in the storage means ;
An information detection procedure for detecting broadcast schedule change information indicating a change in program broadcast schedule from the received signal ;
During the reserved recording operation, if the broadcast schedule change information detected by the information detection procedure indicates a delay in the broadcast time zone of the program during the reserved recording operation, the recording for ending the reserved recording operation so far After executing the end control, and after executing the recording end control, the reservation recording information is changed so that the reservation recording operation is resumed when the broadcast start time of the delayed program is reached,
A control procedure for executing erasure control so as to erase the program recorded by the reservation recording operation that was being executed until the recording end control was executed ;
Recording method that perform.   The above information detection procedure is:
  Detecting the broadcast schedule change information from a signal transmitted from outside through a predetermined interface;
  The recording method according to claim 6.

Images