JP3442063B2 - Recording and reproducing apparatus and method for digital broadcasting - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a recording / reproducing apparatus for digital broadcasting.

[0002]

2. Description of the Related Art A recording / reproducing apparatus for recording an analog TV broadcast is provided with a received NTS.
The C signal is recorded. Even in the case of recording satellite digital broadcasting, a conventional recording / reproducing apparatus of the system for recording NTSC signals has been used. That is, the STB (set top box) for receiving satellite digital broadcasting decodes and records the output converted into the NTSC signal.

However, in such a conventional technique, since the NTSC signal is recorded, there is a problem that a service that can be provided in digital broadcasting cannot be realized at the time of reproduction.

An object of the present invention is to solve the above problems and provide a recording / reproducing apparatus, a method and the like capable of recording / reproducing by utilizing the characteristics of digital broadcasting.

[0005]

[Means for Solving the Problems and Effects of the Invention] (1) (5)
A recording / reproducing apparatus and a recording / reproducing method for digital broadcasting according to the present invention receive a transport stream in which a plurality of services are packet-multiplexed, and select a packet related to a desired service from the received transport stream. The converted stream is recorded on a recording medium, the converted stream recorded on the recording medium is read, the converted stream is received, and the service content is reproduced and output . In addition,
TDT, TOT or PC in port stream
Recorded information is obtained based on R and converted stream
With or as part of a converted stream
Information is recorded at the time of recording, and at the time of playback, the converted stream
Playback information that indicates when playback is being performed and the recording medium
Based on the difference between the two when comparing the recorded information at the time of recording
The content of the reproduction control is changed.

Therefore, at the time of recording and reproducing on the recording medium
Appropriate reproduction can be performed in consideration of the time lag. Well
In addition, TDT, TOT or
Since it is based on PCR, it can be used in multiple recording / playback devices.
In addition, it is possible to record common recording information.
It

(2) In the recording / reproducing apparatus of the present invention, the converting means includes the elementary stream, the PA, among the packets relating to the desired service in the transport stream.
It is characterized in that packets of T and PMT are selected to generate a converted stream.

Therefore, since the packet required for reproduction is selected and the converted stream is generated and recorded, the recording capacity of the recording medium can be effectively utilized.

(3) The recording / reproducing apparatus according to the present invention is
The means includes the current date and time described in the TDT in the SIT
It is characterized by generating a converted stream by
ing.

Therefore, the converted stream is recorded in the recording environment.
The date and time of recording as can be included.

(4) The recording / reproducing apparatus according to the present invention restores
Means for changing the content of the reproduction control and outputting it.
It is characterized by changing the content of the content signal.

Therefore, the appropriate service contents are restored.
You can

The features of the present invention are expressed as follows.
You can also

(6) In the recording / reproducing apparatus of the present invention, the converting means gives the recording location information indicating the location where the recording is performed to the recording means as the recording environment information, and the restoring means is the location where the reproduction is performed. Is compared with the recording location information recorded on the recording medium, and the content of the reproduction control is changed based on the difference between the two.

Therefore, it is possible to perform the appropriate reproduction in consideration of the spatial deviation between the recording on the recording medium and the reproduction.

(7) In the recording / reproducing apparatus of the present invention, the converting means gives the recording means information indicating the recording-apparatus to the recording means as the recording environment information, and the restoring means reproduces the apparatus. Is compared with the recording device information recorded on the recording medium, and the content of the reproduction control is changed based on the difference between the two.

Therefore, it is possible to perform appropriate reproduction in consideration of the difference between the recording device and the reproducing device.

(8) The recording medium on which the packet multiplexed data of the present invention is recorded includes a PAT and a selected video or audio or video / audio elementary stream of packets related to a desired service in the transport stream. And PMT packet multiplexed data are recorded, and the PMT is configured by extracting only the information related to the elementary stream related to the desired service from the information of the PMT in the transport stream. It is characterized by that.

Therefore, since the packets required for reproduction are selected and recorded, the recording capacity of the recording medium can be effectively utilized.

(9) The recording medium recording the packet multiplexed data of the present invention is further characterized in that the recording environment information is also packet multiplexed and recorded. Therefore, when generating from the recording medium, reproduction control based on the recording environment can be performed.

(10) The transmitter for transmitting the transport stream containing the content data according to the present invention compares the recording environment information and the reproduction environment information in the transport stream to change the reproduction control content. It is characterized by including the instruction or data of.

Therefore, by recording the command or data on the recording medium on the receiving side as well, it is possible to perform appropriate reproduction in consideration of the difference in environment between recording on the recording medium and reproduction.

(12) According to the communication method of the present invention, the receiving side selects a packet relating to a desired service from the received transport stream, generates a converted stream and records it in a recording medium, and receives it in the receiving mode. A communication method for restoring service contents according to a converted stream read from a recording medium in playback mode according to the transport stream, and depending on whether the receiving side is in reception mode or playback mode, Since the content to be output is changed, it is possible to restore the appropriate service content in each of the reception mode and the reproduction mode.

(14) The receiving / recording / reproducing apparatus of the present invention is characterized in that the restoring means changes the control content according to the reproducing environment at the time of reproducing. Therefore, it is possible to realize an appropriate reproduction content according to the environment at the time of reproduction.

(18) The recording medium on which the packet-multiplexed data of the present invention is recorded includes a PAT and a selected video or audio or video / audio elementary stream among packets related to a desired service in the transport stream. And PMT packet multiplexed data are recorded, and the PMT is configured by extracting only information related to the elementary stream related to a desired service from the information of the PMT in the transport stream. The packet multiplexed data is characterized in that it includes a condition or instruction that is applied only during reproduction, or a condition or instruction that is not applied only during reproduction.

Therefore, it is possible to reproduce appropriate service contents in the reproduction mode.

(19) The transmitting device for transmitting the transport stream including the content data according to the present invention sets the condition or command applied only when the transport stream is reproduced, or the condition or command not applied only when the transport stream is reproduced. It is characterized by including.

Therefore, by recording the command or condition in the recording medium on the receiving side, it is possible to reproduce the appropriate service content at the time of reproduction.

(20) A transmitting device for transmitting a transport stream including content data according to the present invention has a program script having different control contents depending on whether the transport stream is in a reception mode or a reproduction mode. It is characterized by including.

Therefore, by recording the command or condition on the recording medium on the receiving side, it is possible to obtain appropriate service contents according to the receiving mode and the reproducing mode.

(21) (54) The receiving / recording / reproducing apparatus and the receiving / recording / reproducing method of the present invention include interactive control data for realizing interactivity, and receive a packetized transport stream, A packet related to a desired service is selected from the received transport stream, a converted stream including interactive control data is generated, the converted stream is recorded on a recording medium, the converted stream recorded on the recording medium is read, and the received stream is received. In the playback mode, the received transport stream is received, in the playback mode, the converted stream read from the recording medium is received to restore the service content signal including the operation image, and based on the interactive control data in the stream, It was input by the operator It, is characterized in that to change the contents of the output service content signal interactively.

Since the interactive control data is also recorded in the packet-multiplexed state, the interactive function can be reproduced even during reproduction. Further, since only the packet relating to the desired service is selected and converted into the converted stream, and this is recorded, the recording capacity of the recording medium can be effectively utilized.

(26) The device of the present invention is
A set of a plurality of interactive control data associated with each other is set in the stream, and the set is repeatedly transmitted a plurality of times. The interactive control data displays operation buttons having a display state of a selected state and a non-selected state. Has data for
It is characterized by having link information or display data of image data. Therefore, it is possible to realize the interactive function without recording all of the plurality of sets of interactive control data in the device.

(28) The apparatus of the present invention is characterized in that the conversion means generates a conversion stream in which control data indicating discontinuity is inserted at the time when the service to be recorded becomes discontinuous. Therefore, it is possible to easily find the discontinuity of the service during reproduction.

(29) In the apparatus of the present invention, when the restoring means finds the control data indicating the discontinuity in the read converted stream, the navigation data recorded before the control data indicating the discontinuity is detected. It is characterized by not performing interactive processing based on. Therefore, it is possible to prevent inappropriate execution of interactive processing during reproduction.

(30) (55) According to the receiving / recording / reproducing apparatus and the receiving / recording / reproducing method of the present invention, the recording environment is also recorded as the recording environment information together with the converted stream or as a part of the converted stream. At the time of reproduction, the reproduction environment at the time of reproducing the read converted stream is compared with the recording environment information recorded on the recording medium, and the content of the reproduction control is changed based on the difference between the two environments. Is characterized by.

Therefore, it is possible to perform appropriate reproduction in consideration of the difference in environment between recording on the recording medium and reproduction.

(34) In the device of the present invention, the restoring means determines whether to interactively change the content of the service content signal to be output, based on the difference in the environment.
The feature is that the content of the reproduction control is changed. Therefore, it is possible not to reproduce the interactive contents that are unnecessary during the reproduction.

(36) In the apparatus of the present invention, the restoring means changes the content of the reproduction control by judging the difference between the reproduction environment information and the recording environment information according to the condition contained in the interactive control data. Is characterized by. Therefore, in consideration of the difference between the reproduction environment and the recording environment, it is possible to restore appropriate service contents during both reproduction and recording.

(37) The apparatus of the present invention further comprises communication means for communicating with the outside, and the restoring means determines whether or not to perform communication by the communication means according to an operation input by the operator. Is determined based on the difference between the reproduction environment and the recording environment. Therefore, in consideration of the difference between the reproduction environment and the recording environment, whether or not to communicate with the outside can be appropriately determined during reproduction.

(38) The apparatus of the present invention further comprises a log recording section for recording log information of communication performed by the communication means in response to an operation input by the operator, and the log information recording section includes communication in the reproduction mode. It is also characterized in that data for discriminating whether the communication is a communication in the reception mode is recorded. Therefore, it is possible to record the log information and determine whether the log information is in the reception mode or the reproduction mode.

(39) The apparatus of the present invention is characterized in that the recording environment or the reproducing environment is at the time of recording or reproducing, respectively. Therefore, it is possible to perform appropriate reproduction in consideration of the difference between the time of recording on the recording medium and the time of reproduction.

(40) In the apparatus of the present invention, the recording environment or the reproducing environment is the recording time or the reproducing time, respectively, and the conversion means is the TDT or PDT in the transport stream.
It is characterized in that the recording time is acquired based on CR and is given to the recording means as recording time information. Since TDT and PCR that are transmitted all at once from the transmitting side are used as a reference, it is possible to record common recording information in a plurality of recording / reproducing devices.

(41) In the apparatus of the present invention, the recording environment or the reproducing environment is the recording time or the reproducing time, respectively, and further comprises clock means for measuring the present time, and the converting means is based on the output of the clock means. It is characterized in that the time of recording is acquired and given to the recording means as the information at the time of recording.

Therefore, when the reproduction time is acquired from the clock means of the apparatus at the time of reproduction, the difference between the recording time and the reproduction time can be accurately acquired even if the clock means deviates from the standard time.

(43) The apparatus of the present invention is characterized in that the recording environment or the reproducing environment is the recording place or the reproducing place, respectively. Therefore, it is possible to perform appropriate reproduction in consideration of the spatial deviation between recording on the recording medium and reproduction.

(44) The apparatus of the present invention is characterized in that the recording environment or the reproducing environment is a recording apparatus or a reproducing apparatus, respectively. Therefore, it is possible to perform appropriate reproduction in consideration of the difference between the recorded device and the reproducing device.

(45) The receiving / recording / reproducing apparatus of the present invention records the converted stream containing the program script on the recording medium. Further, even when the same program / script is executed, the control contents are made different depending on the reception mode or the reproduction mode. Therefore, it is possible to obtain appropriate service contents depending on the reception mode or the reproduction mode.

(46) In the receiving / recording / reproducing apparatus of the present invention, the current time and the recording time are compared in the reproduction mode, and the control contents are changed based on the comparison.
Therefore, it is possible to reproduce appropriate contents based on the difference between the time of reception and recording and the current time of reproduction.

(50) A basic program recording medium on which the basic program of the present invention is recorded compares the recording environment information read from the recording medium with the reproduction environment, and determines the control program or condition data included in the interactive control data. A basic program for interpreting and causing the control unit to perform processing for changing the control contents for the decoder and / or the signal generating circuit based on the difference between the two environments is recorded.

Therefore, it is possible to perform appropriate reproduction in consideration of the difference in environment between recording on the recording medium and reproduction.

(51) The basic program recording medium in which the basic program of the present invention is recorded interprets and receives a portion included in the program script, which is intended to have different execution results depending on the reception mode and the reproduction mode. A basic program for causing the control unit to perform processing for changing control contents depending on each of the mode and the reproduction mode is recorded.

Therefore, it is possible to perform appropriate reproduction in consideration of the difference in environment between recording on the recording medium and reproduction.

(52) The recording medium on which the packet multiplexed data of the present invention is recorded has at least the selected elementary stream, PAT, and PMT of the packets relating to the desired service in the transport stream.
And packet-multiplexed data of interactive control data is recorded, and the PMT extracts only information related to the elementary stream regarding a desired service from all information of the PMT in the transport stream. The interactive control data is characterized in that a set of a plurality of interactive control data associated with each other is set and the set is repeatedly recorded a plurality of times.

Therefore, it is possible to realize the interactive function without recording all the plurality of sets of interactive control data in the apparatus at the time of reproduction.

(54) In the recording medium recording the converted stream of the present invention, the interactive control data included in the converted stream is interpreted by the basic program or in cooperation with the basic program to generate an operation image signal. Then, based on the operation input of the operator, control is performed so that at least the interactive control data separated by the decoder is changed to output an interactive service content signal from the signal generation circuit. The feature is that it is performed.

Therefore, it is possible to realize interactive service contents even during reproduction.

(55) In the recording medium of the present invention, the interactive control data is interpreted by the basic program or in cooperation with the basic program, and further, the recording environment information and the reproduction environment read from the recording medium are recorded. Compare
It is characterized in that processing is performed such that the control contents for the decoder and / or the signal generating circuit are changed based on the difference between the two environments.

Therefore, it is possible to perform appropriate reproduction in consideration of the difference in environment between recording on the recording medium and reproduction.

(56) The recording medium on which the converted stream according to the present invention is recorded is such that the program / script contained in the converted stream is interpreted by the basic program or cooperates with the basic program to perform control processing. It is characterized in that the program script includes a part configured to perform different control in the reception mode and the reproduction mode.

Therefore, appropriate control can be performed in each of the reception mode and the reproduction mode.

(59) (60) The transmission device and the transmission method of the present invention are a transmission method for multiplexing and transmitting a transport stream containing content data and interactive control data for realizing interactivity. The interactive control data is transmitted as a set of a plurality of interactive control data associated with each other, and the set is repeatedly transmitted a plurality of times, and the interactive control data is reproduced in a recording environment at the time of recording on the receiving side. Compared to the playback environment at the time of
It is characterized in that it includes an instruction to change the processing content.

Therefore, when the data is recorded and reproduced on the receiving side, it is possible to perform the appropriate reproduction in consideration of the difference in the environment between the recording and the reproduction.

(61) The carrier carrying the transport stream containing the content data of the present invention and the interactive control data for realizing the interactivity, the interactive control data is a plurality of interactive control data associated with each other. As a set, the set is repeatedly transmitted a plurality of times, and in the interactive control data, an instruction to compare the recording environment at the time of recording at the receiving side and the reproduction environment at the time of reproduction to change the processing content It is characterized by including.

Therefore, when recorded and reproduced on the receiving side, appropriate reproduction can be performed in consideration of the difference in environment during recording and reproduction.

(62) In the carrier wave which carries the transport stream containing the content data and the control data of the present invention, the control data includes a plurality of sets of control data associated with each other, and the set is repeated a plurality of times. The control data transmitted includes a portion for performing different control contents in the reception mode and the reproduction mode.

Therefore, the receiving side can provide appropriate contents in each of the receiving mode and the reproducing mode.

(63) According to the communication method of the present invention, the transmitting side transmits the transport stream including the interactive control data for realizing the interactivity, and the receiving side receives the desired transport stream from the received transport stream. Select the packet related to the service,
A converted stream containing interactive control data is generated and recorded on a recording medium, and an operation image is included according to the received transport stream in the reception mode and according to the converted stream read from the recording medium in the reproduction mode. It is a communication method that restores the service content and interactively changes the content to be output according to the operation input of the operator based on the interactive control data in the stream. It is characterized in that instructions or data having different processing contents are included in the mode and the reproduction mode.

Therefore, it is possible to restore appropriate service contents in the reception mode and the reproduction mode.

(64) The transmission device of the present invention is a transmission device for multiplexing and transmitting a transport stream containing content data and interactive control data for realizing interactivity, wherein the interactive control data is: A set of a plurality of interactive control data associated with each other is transmitted repeatedly, and the interactive control data includes a command or data having different processing contents in the receiving mode and the reproducing mode on the receiving side. It is characterized by being out.

Therefore, when received at the receiving side, further recorded and reproduced, it is possible to restore appropriate service contents.

(65) The receiving / recording / reproducing apparatus of the present invention includes interactive control data for realizing the interactivity, receiving means for receiving the packetized transport stream, and the received transport stream. A conversion unit that selects a packet related to a desired service from the stream and generates a conversion stream including interactive control data, a recording unit that records the conversion stream from the conversion unit on a recording medium, and a conversion that is recorded on the recording medium. Reading means for reading the stream;
An operation accepting means for receiving an operation input from an operator, a transport stream from the receiving means in the receiving mode, and a converted stream from the reading means in the reproducing mode, and a service content signal including an operation image are received. Restoration means for restoring and interactively changing the content of the service content signal to be output according to the operation input of the operator based on the interactive control data in the stream, wherein the restoration means is a reproduction environment during reproduction. It is characterized in that the control content is changed according to.

Therefore, it is possible to restore appropriate service contents in accordance with the reproduction environment.

(72) The device of the present invention is characterized in that the restoring means determines the reproduction environment at the time of reproduction according to the condition contained in the interactive control data, and changes the control content according to the reproduction environment. There is. Therefore, at the time of reproduction, it is possible to reproduce an appropriate service content according to the reproduction environment.

(73) The apparatus of the present invention is characterized in that the restoring means changes the content of the reproduction control depending on whether or not the output content is interactively changed. Therefore, it is possible to prevent unnecessary interactive reproduction during reproduction.

(74) The apparatus of the present invention further comprises communication means for performing communication with the outside, and whether the restoration means performs communication by the communication means in response to an operation input by the operator. The feature is that it is determined according to the reproduction environment at the time of reproduction. Therefore, whether or not to communicate with the outside can be appropriately determined according to the reproduction environment at the time of reproduction.

(75) The apparatus of the present invention further comprises a log recording section for recording log information of communication performed by the communication means in response to an operation input by the operator, and the log information recording section includes communication in the reproduction mode. It is also characterized in that data for discriminating whether the communication is a communication in the reception mode is recorded. Therefore, it is possible to record the log information and determine whether the log information is in the reception mode or the reproduction mode.

(81) The recording medium on which the packet-multiplexed data of the present invention is recorded is such that at least the selected elementary stream, PAT, and PMT of the packets relating to the desired service in the transport stream.
And packet-multiplexed data of interactive control data is recorded, and the PMT extracts only information related to the elementary stream regarding a desired service from all information of the PMT in the transport stream. The interactive control data is recorded as a set of a plurality of interactive control data associated with each other, and the set is repeatedly recorded a plurality of times. The interactive control data is a condition applied only during reproduction or It is characterized by including a command or a condition or command that is not applied only during reproduction.

Therefore, it is possible to realize the interactive function without recording all of the plurality of sets of interactive control data in the apparatus at the time of reproduction. Furthermore, appropriate reproduction can be performed according to conditions and commands that are applied or not applied only during reproduction.

(82) The recording medium of the present invention selects a packet related to a desired service from a given transport stream and outputs it as a converted stream containing interactive control data. A recording unit that records the converted stream together with recording environment information on a recording medium, a reading unit that reads the converted stream recorded on the recording medium, and an elementary stream and interactive control data that are separated from the read converted stream and output. And a signal generation circuit that generates a service content signal in response to an elementary stream from the decoder and a command from the control unit,
For a recording / reproducing apparatus including a control unit that controls the operation of the decoder, a recording unit that records a basic program that defines the operation of the control unit, and an operation receiving unit that receives an operation input from an operator, the basic program A recording medium recording interactive control data for performing control in cooperation with the basic program, wherein the interactive control data is interpreted in the basic program or in cooperation with the basic program, An image signal for operation is generated and given to a signal generation circuit, and based on an operation input by the operator, at least the interactive control data separated by the decoder is controlled to be changed, thereby generating a service content signal having interactivity. It is intended to perform processing to be output from the circuit. ® The emission program, it is characterized in that it contains the only applicable conditions or instructions, or condition does not apply only during playback or instruction during playback.

Therefore, appropriate reproduction can be performed depending on conditions or commands that are applied only during reproduction or not applied.

(83) The carrier wave which carries the transport stream of the present invention includes content data and interactive control data for realizing interactivity, and the interactive control data is
A set of a plurality of interactive control data associated with each other is repeatedly transmitted, and the interactive control data has a condition or command applied to the interactive control data only at the time of reproduction, or at the time of reproduction. It is characterized by the inclusion of conditions or instructions that do not apply only.

Therefore, the interactive function can be realized without recording all the plurality of sets of interactive control data in the device at the receiving side at the time of reception or reproduction. Furthermore, appropriate reproduction can be performed according to conditions and commands that are applied or not applied only during reproduction.

In the present invention, the "reception means" means means for receiving a transport stream, and is a concept including not only wireless transmission but also wired transmission. In the embodiment, the tuner 3 of FIG.
4 corresponds to this.

"Conversion means" means means for converting a transport stream into a conversion stream. In the embodiment, for example, the TS decoder 50, the converted stream generation unit 62, and the CPU 58 (particularly steps S24 and S25) in FIG. 10 correspond to this.

The "converted stream" refers to a stream obtained by subjecting a transport stream to some processing for recording, and is a concept including not only a finally recorded stream but also an intermediately generated stream. .
For example, in the embodiment, the selected stream as output from the terminal 50a of the transport decoder 50 is also included.

"Recording means" means means for recording on a recording medium. In the embodiment, the recording / reading unit 66 corresponds to this.

"Reading means" means a means for reading from a recording medium. In the embodiment, the recording / reading unit 66 corresponds to this.

The "restoring means" is means for restoring the service content based on the transport stream or the converted stream. In the embodiment, for example, the TS decoder 50 and the CPU 58 (particularly, step S32-
S36) corresponds to this.

"Recording information" means temporal information at the time of recording, and is a concept including time, day, month, year, day of the week, distinction between weekdays and holidays, and a combination of these. Is a concept that includes.

The "elementary stream" refers to a packetized stream of video or audio or both that constitutes the content of the service.

The "reproduction control" is a concept including not only the reproduction itself but also the control performed in connection with the reproduction. For example, it also includes control for performing communication with the outside during reproduction.

The term "executes an instruction" is a concept including not only the case where the instruction is actually executed but also the case where the instruction is executed or not depending on conditions.

The "basic program" is a program for interpreting and executing other programs and data.

The "recording medium on which the program is recorded" means
A recording medium such as a ROM, a RAM, a flexible disk, a CD-ROM, a memory card, and a hard disk recording a program. Not only a recording medium such as a hard disk, which is connected to a CPU to directly execute a recorded program, but a CD-RO in which a program to be executed once installed in the hard disk or the like is recorded
This is a concept including a recording medium such as M. Further, the programs mentioned here include not only directly executable programs but also source format programs, compressed programs, encrypted programs, and the like. The navigation data in the embodiment is also included in the concept of the program.

[0096]

BEST MODE FOR CARRYING OUT THE INVENTION 1. Outline of satellite broadcasting system 1.1. Radio wave transmission state in satellite broadcasting 1.2. Configuration of transmitter 1.3. Structure of transport stream 1.4. Configuration of receiver 2. First Embodiment 2.1. Reception / Recording / Reproducing Apparatus 2.1.1 Overall Configuration of Reception / Recording / Reproducing Apparatus 2.1.2 Specific Configuration Example and Operation of Reception / Recording / Reproducing Apparatus 2.1.3 Others Embodiment 3. Second embodiment 3.1. Reception / recording / reproducing apparatus 3.1.1 Overall configuration of reception / recording / reproducing apparatus 3.1.2 Specific configuration example and operation of reception / recording / reproducing apparatus 3.1.3 Recording environment and reproduction environment 3.2. Other embodiments 4. Third embodiment 4.1. Reception / recording / reproducing apparatus 4.1.1 Overall structure of reception / recording / reproducing apparatus 4.1.2 Receiving / recording / reproducing apparatus Specific configuration example and operation 4.1.3 Other reproduction environment 4.2. Other embodiment 5. Fourth embodiment 5.1. Interactivity Outline of Satellite Broadcasting System Having 5.2. Reception / Recording / Reproducing Device 5.2.1 Overall Configuration of Reception / Recording / Reproducing Device 5.2.2 Specific Configuration Example and Operation of Reception / Recording / Reproducing Device 5.2.3 Other Implementation Mode 6. Fifth embodiment 6.1. Transmission apparatus 6.2. Reception recording / reproducing apparatus 6.2.1 Overall configuration of reception recording / reproducing apparatus 6.2.2 Specific configuration example and operation of reception recording / reproducing apparatus 6.2.3 Recording environment and reproduction environment 6.3. Other embodiments 7. Sixth embodiment 7.1. Transmission device 7.2. Reception recording / reproduction device 7.2.1 Overall reception recording / reproduction device Configuration 7.2.2 Specific configuration example and operation of receiving / recording / reproducing apparatus 7.2.3 Reproduction environment 8. Seventh embodiment 9. Eighth embodiment 10. Others

A case where the present invention is applied to satellite broadcasting will be described below. However, as long as it is a packetized broadcast, it can be applied to terrestrial broadcasts and cable broadcasts such as cable television. Before describing the embodiments of the present invention, first, an outline of the satellite broadcasting system will be described.

A) Outline of Satellite Broadcasting System 1. Radio Wave Transmission State in Satellite Broadcasting FIG. 1 schematically shows the radio wave transmission state in satellite broadcasting. The radio wave from the ground station 2 is transmitted to the ground via the broadcasting satellite 4. A plurality of transport streams TS1, TS2, TS3 are transmitted from the broadcasting satellite 4. Each transport stream is distinguished by frequency, plane of polarization, and the like.

The transport stream TS1 includes a plurality of services (corresponding to terrestrial broadcasting channels) SV.
11, SV12, SV13, and SV14 are packetized and multiplexed by time division. Similarly, services SV21 and SV2 are added to the transport stream TS2.
2, SV23, SV24 are multiplexed, and services SV31, SV32, S are added to the transport stream TS3.
V33 and SV34 are multiplexed. In addition to the image data and audio data of each service, control data for indicating program information, control data for indicating the current time, control data necessary for packetization, etc. are also transmitted to each transport stream. There is. Although only three transport streams are shown in FIG. 1, more transport streams are actually sent. Further, in FIG. 1, four services are multiplexed for each transport stream,
In reality more services are multiplexed.

2. Configuration of Transmission Device FIG. 2 shows the configuration of a transmission device for generating and transmitting the above-mentioned transport stream. Although only the transport stream TS1 is shown in the figure,
The other transport streams TS2 and TS3 are similarly generated.

Image / audio data ES of service SV11
11 is compressed by the encoder E1 and multiplexed by the multiplexing unit 1
Given to 0. Similarly, the image / audio data ES12 of the service SV12 is compressed by the encoder E2 and given to the multiplexing unit 10, and the image / audio data ES13 of the service SV13 is compressed by the encoder E3 and given to the multiplexing unit 10 and the service. The image / audio data ES14 of the SV14 is compressed by the encoder E4 and given to the multiplexing unit 10.

The control data generator 16 generates control data for packet multiplexing, control data for indicating program information, control data for indicating the current time, and the like. The control data for packet multiplexing is attached to correctly identify the image / audio data of a plurality of services that are time-divided and packetized.

The multiplexing unit 10 controls the control data, compressed image / audio data ES11, ES12, ES13, ES.
14 is time-divided into fixed-length packets, which are output as the transport stream TS1.

The scrambler 12 scrambles the output packet using the scramble key supplied from the scramble key control unit 16. The scrambled transport stream TS1 is modulated by the modulator 14 and broadcast to the viewer via the broadcasting satellite 4.

The scramble key used in the scrambler 12 is encrypted in the ECM generating section 8 and becomes ECM (Entitlement Control Message) data. That is, the ECM data in which the key for descrambling is further encrypted is generated. Multiplexer 54
Packetizes this ECM data as well.

3. Structure of Transport Stream As shown in FIG. 3, the transport stream TS1 generated by the transmitting apparatus of FIG. 2 has the service SV1.
1 video data ES (V), audio data ES (A)
1, video data ES (V) 2 of service SV12, audio data ES (A) 2, video data E of service SV13
S (V) 3, voice data ES (A) 3, service SV1
4 video data ES (V) 4, audio data ES (A) 4
Are multiplexed.

Further, control data NIT, PAT, PMT1, PMT2, PMT3, P for packet multiplexing are provided.
MT4 is also multiplexed. With these control data,
Multiplexed services SV11, SV12, SV1
3. SV14 video / audio data can be separated.

Also, the control data ECM1, ECM2, ECM3, ECM4 for the scramble key and the control data EIT1, EIT2, EIT3, EIT indicating the program information.
4. The control data TDT indicating the current date and time is also multiplexed. Although not shown in the figure, many other control data are multiplexed.

Packetization is performed as shown by the vertical line 18a in FIG. That is, control data NIT, PAT, P
MT, EIT, TDT, ECM, video data ES
(V) and the voice data ES (A) are packetized in this order. When the packetization up to the voice data ES (A) 3 is completed, the packetization up to the control data NIT is repeated again (see the vertical line 18b).

FIG. 4 shows the basic structure of packetized data. Both the control data and the video / audio data are packets having a data structure as shown in FIG. A packet ID (PID) is attached to the beginning of the packetized data. The packet ID is a code uniquely assigned to each packet for identifying each packet. The content data is packetized target data (control data,
Video / audio data, etc.).

FIG. 5 shows the data contents of the control data PMT1 for packet multiplexing. PMT1 includes video data ES (V) 1 and audio data ES of service SV11.
(A) The packet ID of 1 and the packet ID of ECM1 for descrambling these are described. PMT2, PMT3, and PMT4 describe similar packet IDs for the services SV12, SV13, and SV14, respectively.

As shown in FIG. 6, the PAT has a packet ID of PMT1 corresponding to the service SV11, a packet ID of PMT2 corresponding to the service SV12, a packet ID of PMT3 corresponding to the service SV13, and a PMT4 corresponding to the service SV14. Packet ID is described.

As shown in FIG. 7, in the NIT, for all the transport streams TS1, TS2, TS3, the transmission data such as their frequencies and polarization planes, and the services multiplexed in the transport stream. List is described. By this, it is possible to know which frequency of the transport stream a particular service is multiplexed with.

4. Configuration of Receiving Device FIG. 8 shows an outline of the receiving device. The tuner 22 selects the transport stream, the de-scrambler 24 descrambles it, and the transport decoder 26 separates the video / audio data ES relating to the desired service. The microprocessor (MPU) 28 sends the acquired ECM to the IC card 30 and receives the scramble key restored by the IC card 30. The MPU 28 sets this scramble key in the descrambler 24. This makes it possible to descramble the video / audio data ES.

The MPU 28 sets the packet ID of the video / audio data ES of the desired service in the transport decoder 26. As a result, the transport decoder 26 makes the video / audio data ES of the service concerned.
Is output. Further, when the packet ID of the control data is set in the transport decoder 26, the separated control data is given to the MPU 28.

The operation when the MPU 28 is instructed to switch to the service SV12 of the transport stream TS1 assuming that the service SV33 of the transport stream TS3 is currently received will be described below. First, the MPU 28 controls the transport decoder (that is, the packet I of the control data NIT).
Set D) and take in NIT. From this NIT description, it is known that the service SV12 desired to be received is multiplexed in the transport stream TS1 (see FIG. 7).

Next, the tuner 8 is controlled to receive the transport stream TS1. Further, the transport decoder 26 is controlled to acquire the PAT and PMT2, and the video data ES of the desired service SV12 is acquired.
(V) 2, the packet ID of the audio data ES (A) 2 and the packet ID of its ECM are obtained.

Next, these packet IDs are set in the transport decoder 26, and the desired service SV12 is set.
The video data ES (V) 2 and the audio data ES (A) 2 are output from the transport decoder 26. In parallel with this, the MPU 28 sends the ECM obtained from the transport decoder 26 to the IC card 30 to acquire the scramble key, and sets it in the descrambler 24. As a result, the scrambled video data ES
(V) 2 and audio data ES (A) 2 can be obtained. As described above, the services to be received are switched.

When the MPU 28 is instructed to display the program schedule and program information, the MPU 28 controls the transport decoder 26 to acquire the EIT.
Further, based on the acquired EIT, it is controlled to display program information and the like.

B) First Embodiment 5. Reception / Recording / Reproducing Apparatus 5.1. Overall Configuration of Reception / Recording / Reproducing Apparatus FIG. 9 shows the overall configuration of the reception / recording / reproducing apparatus 32 according to an embodiment of the present invention. The radio waves captured by the antenna 20 are demodulated by the receiving means 34 as one transport stream. In receive mode,
The transport stream from the receiving means 34 is given to the restoring means 40. The restoring means 40 selects a packet relating to a desired service from this transport stream, restores a service content signal (for example, a composite signal such as NTSC) according to the content of the packet, and outputs the service content signal. The video / image output means 46
Upon receiving this service content signal, the video and image are output.

In the recording mode, the transport stream from the receiving means 34 is given to the converting means 36. The converting means 36 converts this transport stream into a packet multiplexed stream in a state suitable for recording and outputs it as a converted stream. Conversion means 36
Selects a packet relating to a desired service from the transport stream, and selects only a packet necessary for reproduction from these packets to generate a converted stream. The recording means 38 records this converted stream in the recording medium 44.

In the reproduction mode, the read stream is read from the recording medium 44 by the reading means 42. The read converted stream is provided to the restoration unit 40. The restoring means 40 restores and outputs a service content signal (for example, a composite signal such as NTSC) according to the content of the converted stream. Video
The image output means 46 receives this service content signal,
Output video and images.

In this embodiment, the service content signal from the restoring means 40 is not recorded as in the conventional device, but is recorded in the packet state as it is.
Therefore, since the control data can be recorded together with the recording, the recording and reproduction can be performed without impairing the satellite broadcasting function based on the control data. Moreover, since both video and audio can be recorded in a digitally compressed state, the capacity of the recording medium can be effectively utilized.

Further, since only the packet relating to the desired service is selected and recorded from the transport stream, the capacity required for recording can be reduced. In addition, since only the packet necessary for reproduction is selected and recorded from the packets, the capacity required for recording can be reduced.

5.2. Specific Configuration Example and Operation of Reception / Recording / Reproducing Apparatus FIG. 10 is a block diagram showing the case where the reception / recording / reproducing apparatus 32 shown in FIG. 9 is realized by using a CPU. The receiving / recording / reproducing device 32 includes a receiving unit 68 and a recording / reproducing unit 70. The CPU 58 controls each unit according to the program recorded in the memory 60.

This device has three modes: a reception mode, a recording mode, and a reproduction mode. The operation of each mode will be described below.

(1) Reception mode The reception mode program recorded in the memory 60 is shown in the flow chart of FIG.

The operation when the CPU 58 is instructed to switch to the service SV11 of the transport stream TS1 assuming that the service SV13 of the transport stream TS1 is currently being received will be described below. The command to the CPU 58 is given from the operation panel or the operation remote controller. The operation input unit 54 shown in FIG. 10 is a light receiving unit that receives a command from the operation panel or the operation remote controller.

First, the CPU 58 sets the PAT packet ID in the control data separation register (not shown) of the transport decoder (TS decoder) 50.
The packet ID of PAT is fixedly set to “0x00”. As a result, the TS decoder 50 records the content of the separated PAT in the memory 60 (step S1).
1). In this PAT, a list of services multiplexed in the currently received transport stream TS1 is described (see FIG. 6). Therefore, the CPU 58
Knows that the desired service SV11 is multiplexed in the transport stream TS1 currently being received. That is, the CPU 58 causes the steps S12 to S1.
Processing proceeds to 8.

In step S18, the acquired PA
Based on T, the packet ID of the PMT of the desired service SV11 is acquired. Here, “0x11” is acquired (see FIG. 6). Next, the CPU 58 sets the PMT packet ID “0x11” in the control data separation register of the TS decoder 50. As a result, the PMT1 of the service SV11 is separated and its contents are stored in the memory 60.
Can be obtained (step S19).

The PMT1 of the service SV11 is shown in FIG. The CPU 58 can know the packet ID “0x21” of the ECM data for obtaining the scramble key of the video and audio data based on the PMT1.
Similarly, video and audio data ES (V) 1, ES
(A) The packet ID “0x22” and “0x24” of 1 can be known (step S20).

The CPU 58 uses the ECM packet ID "0".
x21 ”is set in the control data separation register of the TS decoder 50 to acquire the ECM. Furthermore, this EC
M is given to the IC card 56 to obtain the restored scramble key. The scramble key thus obtained is set in the descrambler 48 (step S2).
1). As a result, the video data ES of the service SV11
The packets of (V) 1 and audio data ES (A) 1 are descrambled.

Also, the CPU 58 causes the packet ID "0x2" of the video and audio data ES (V) 1 and ES (A) 1.
"2" and "0x24" are set in the ES separation register (not shown) of the TS decoder 50 (step S22).
As a result, the TS decoder 50 outputs the separated video and audio data ES (V) 1 and ES (A) 1 to the AV decoder 52.

Upon receiving this, the AV decoder expands (decompresses) the compression and performs D / A conversion to generate a video composite signal. This signal is given to the TV set 46 and output as video / audio.

The processing in the reception mode is performed as described above. In step S12, if the desired service is not multiplexed in the currently received transport stream, the process proceeds to step S13. In step S13, the NIT described in the PAT
The packet ID of Based on this, the NIT is acquired and it is known in which transport stream the desired service is multiplexed (steps S14, S).
15).

The CPU 58 switches the setting of the tuner 34 so as to receive the transport stream (step S16). Then, the PAT of the transport stream is acquired (step S17). After that, the above step S18 and subsequent steps may be executed.

(2) Recording Mode FIG. 12 is a flowchart showing a recording mode program recorded in the memory 60. Steps S11 to S
22 is the same as the reception mode. Therefore, FIG.
In, only the step S23 and the subsequent steps are shown. When a recording command is given from the operation input unit 54, the recording mode is set.

First, in step S23, the CPU 5
Reference numeral 8 denotes a record data separation register (not shown) of the TS decoder, and packet IDs and NIs of video and audio data ES (V) 1 and ES (A) 1 of the desired service SV11.
The packet ID of T, the packet ID of PAT, and the packet ID of PMT1 of the desired service SV11 are set.
As a result, the TS decoder 50 causes the video and audio data ES (V) 1, ES (A) 1, PAT, PMT1, N.
The IT is output to the converted stream generating unit 62 of the recording / reproducing unit 70 in the packet state.

The CPU 58 uses the PM recorded in the memory 60.
T1 is acquired, and only the information regarding the desired service SV11 is selected from the described information, and the converted PMT1 is selected.
Is generated (step S24). For example, of the information included in the PMT1, the ECM packet ID is not needed during reproduction and is removed. As a result, of the information included in the PMT 1, the converted PM in which the information unrelated to the recording / reproduction of the desired service SV11 is removed.
T1 is obtained.

Next, the CPU 58 generates control data SIT describing information on services and events (programs) included in the recorded converted stream (step S).
25).

The CPU 58 gives the converted PMT1 and SIT generated as described above to the MPU 64. MPU6
4 supplies this to the conversion stream generation unit 62 to generate a conversion stream.

The converted stream generator 62 receives the PAT from the TS decoder 50 and receives the desired service SV11.
Generate a transformed PAT containing only information about and replace the PAT with the transformed PAT. At this time, the NIT packet ID included in the PAT is changed to the SIT packet ID. In addition, the PMT from the TS decoder 50
Replace with the converted PMT received from 64. Furthermore, TS
NIT from the decoder 50, S received from the MPU 64
Replace with IT.

Thus, the ES of the desired service,
A packet-multiplexed conversion stream of SIT, conversion PAT, conversion PMT is obtained.

The CPU 58 gives a recording command to the MPU 64 (step S27). In response to this, MPU64
Controls the recording / reading unit 66 to record the converted stream on the magnetic tape 44. The converted stream to be recorded is schematically shown in FIG.

When a recording stop command is given from the operation input unit 54, the CPU 58 gives it to the MPU 64 (steps S28 and S29). Upon receiving this, the MPU 64 stops recording by the recording / reading unit 66.

In the converted stream recorded on the magnetic tape 44, even control data having the same content is packet-multiplexed and recorded many times. Therefore,
Reproduction can be performed even from the middle of the magnetic tape.

If the service selection is changed during recording, the changed service will be recorded from the middle. At this time, the conversion stream generation unit 62 detects itself that the information is discontinuous (or the CPU 5
Control data DIT (Discontinuity Information Table) indicating the discontinuity of the information is generated. Further, as shown in FIG. 14, this DIT is
Packet multiplexing is performed at the beginning of the changed service. Similarly, when new recording is performed, this DIT is added to the beginning. Also, DIT is added when different programs in the same service are continuously recorded.

In the above description, the recording / reproducing device 70 is provided with the converted stream generating section 62, but the receiving device 68 may be provided with this. In this case, the recording / reproducing device 70 directly records the converted stream output from the receiving device 68.

(3) Reproduction Mode FIG. 15 is a flow chart showing the reproduction mode program recorded in the memory 60. When a reproduction command is given from the operation input unit 54, the reproduction mode is set.

First, the CPU 58 gives a reproduction command to the MPU 64 in step S31. MPU64 is
In response to this, the recording / reading unit 66 is controlled, and the magnetic tape 4
4 to read the converted stream. The read converted stream is provided to the TS decoder 50.

Next, the packet ID "0x00" of the converted PAT is stored in the control data separation register of the TS decoder 50.
Is set to separate the converted PAT from the converted stream and store it in the memory 60 (step S32). Based on the description of this conversion PAT, the packet ID of the conversion PMT
Is recognized (step S33).

Further, the packet ID of the converted PMT is set in the control data separation register of the TS decoder 50, the converted PMT is separated from the converted stream and stored in the memory 60 (step S34). Based on the description of the converted PMT, the video data ES (V), the audio data E
Recognize the packet ID of S (A) (step S3
5).

Next, the CPU 58 sets the packet IDs of the video data ES (V) and the audio data ES (A) in the ES separation register of the TS decoder 50, and separates them from the converted stream. The separated video data ES (V) and audio data ES (A) are stored in the AV decoder 5
2 is output.

Upon receiving this, the AV decoder expands (decompresses) the compression and performs D / A conversion to generate a video composite signal. This signal is given to the TV set 46 and output as video / audio.

When the existence of DIT in the conversion stream is found during reproduction, the CPU 58 returns to step S32 and performs the following processing of conversion PAT (step S3).
7). This is because DIT indicates a discontinuous point of recorded data.

When there is a reproduction stop command from the operation input unit 54, the CPU 58 gives it to the MPU 64 (steps S38, S39). In response to this, the MPU 64 controls the recording / reading unit 66 to stop the reading from the magnetic tape 44.

5.3. Other Embodiments In the embodiment shown in FIG. 10, the TS decoder 50, the conversion stream generating unit 62 and the CPU 58 (in particular, step S2
4, S25) realizes the conversion means 36.
Further, the TS decoder 50 and the CPU 58 (in particular, steps S32 to S36) implement the restoration means 40. In this way, the TS decoder 50 is converted into a conversion means,
Since it is shared by both the restoration means, the configuration can be simplified.

In the embodiment shown in FIG. 10, the CPU 58 executes a part of conversion stream generation (step S2).
4, S25), but the conversion stream generating unit 62 may also perform these processes. Further, only the packet selected by the TS decoder 50 is converted stream generation unit 6
However, the transport stream from the descrambler 48 may be directly provided to the converted stream generation unit 62. In this case, the converted stream generation unit 62 selects a necessary packet.

In FIG. 10, the receiving / recording / reproducing device 32 is shown.
However, the receiving device may include only the receiving unit 68. In this case, the output 50 of the TS decoder
It is preferable to provide a recording data output terminal for taking out a and a restoring data input terminal for receiving the converted stream 50b from the recording / reproducing unit 70.

Further, the recording / reproducing apparatus may be composed of only the recording / reproducing unit 70. Furthermore, a reproducing apparatus configured only by the reproducing function of the recording / reproducing unit 70 and a recording apparatus configured only by the recording function of the recording / reproducing unit 70 may be used.

Although the descrambled data is recorded in the above embodiment, the scrambled data may be recorded.
In this case, ECM data is also recorded. In this case, the ECM data may be recorded as it is or S
It may be recorded as a part of IT data.

C) Second Embodiment 6. Reception / Recording / Reproducing Apparatus 6.1. Overall Configuration of Reception / Recording / Reproducing Apparatus FIG. 16 shows the overall configuration of the reception / recording / reproducing apparatus according to the second embodiment. In this embodiment, recording environment acquisition means 72 for acquiring the environment (that is, the environment at the time of recording) for creating the converted stream is provided, and the conversion means 36 is provided.
Generates a converted stream including this recording environment.
Therefore, the converted stream including the recording environment is recorded on the recording medium 44.

The reproduction environment acquisition means 74 acquires the environment at the time of reproduction. The restoration unit 40 compares the reproduction environment from the reproduction environment acquisition unit 74 with the recording environment read from the recording medium, and changes the content of the reproduction control based on the difference between the both environments.

Therefore, appropriate reproduction can be performed based on the difference between the recording environment and the reproduction environment.

6.2. Specific Configuration Example and Operation of Receiving / Recording / Reproducing Apparatus A block diagram in the case of realizing the receiving / recording / reproducing apparatus 32 shown in FIG. 16 using a CPU is similar to FIG.

This device has three modes: a reception mode, a recording mode, and a reproduction mode. The reception mode is
Since the operation is similar to that of the first embodiment, the operation of the recording mode and the reproduction mode will be described.

(1) Recording Mode FIG. 17 is a flowchart showing a recording mode program recorded in the memory 60. The basic process is shown in Figure 1.
Same as 2. In step S231, the CPU 5
8 acquires the ID of this device itself recorded in the memory 60. Further, the CPU 58 includes this device ID in the description of the SIT (for example, the descriptor area) when the SIT is generated (step S25). Therefore, the converted stream recorded on the magnetic tape 44 includes the device ID as the recording environment.

(2) Reproduction Mode FIG. 18 is a flow chart showing the reproduction mode program recorded in the memory 60. The basic process is shown in Figure 1.
Same as 5. In step S321, the CPU 58 acquires the SIT packet ID based on the converted PAT. This is set in the control data separation register of the TS decoder 50 and SIT is acquired (step S3).
22). Subsequently, the CPU 58 acquires the device ID described in the acquired SIT (step S323).
In addition, the ID of the device itself recorded in the memory 60
Is read (step S324).

Further, it is determined whether or not these device IDs match (step S325). If they match (that is, if the device recorded on the magnetic tape 44 is the same as the reproducing device), step S33 and subsequent steps are executed to reproduce. If they do not match (that is, if the device recorded on the magnetic tape 44 is different from the reproducing device), a message to that effect is displayed (step S326) and the reproduction is terminated.

According to this embodiment, it is possible to prohibit the tape recorded with pay broadcast such as pay-per-view from being reproduced by a device other than the person himself / herself.

In the above embodiment, the reproduction is not performed when the IDs do not match, but the reproduction content may be changed and the reproduction may be performed.

6.3. Recording Environment and Reproduction Environment In the above embodiment, the device ID is used as the recording and reproduction environment.
Is used. However, the ID of the IC card may be used. Further, the type of the device may be recorded as a recording environment, compared with the type of the device used at the time of reproduction, and the recording data format or the like may be converted and reproduced based on the difference.

In the above embodiment, the apparatus used for recording and the apparatus used for reproduction are the recording environment and the reproduction environment. However, the recording environment and the reproduction environment may be the recording environment and the reproduction environment. In addition, the recording location, the playback location, the recording environment,
It may be used as a reproduction environment.

In the above embodiment, the recording environment is described in the SIT, but the conversion PAT and the conversion PMT are used.
Etc. may be described.

7. Other Embodiments In the above embodiment, the transport stream sent from the transmission device is the same as that in the first embodiment. However, data indicating the degree of discrepancy between the recording environment and the reproducing environment and the content to be processed corresponding to this is transmitted from the transmitting device by being included in the transport stream. According to this data, the processing content may be changed based on the difference between the recording environment and the reproduction environment.

D) Third Embodiment 8. Reception / Recording / Reproducing Apparatus 8.1. Overall Configuration of Reception / Recording / Reproducing Apparatus FIG. 19 shows the overall configuration of the reception / recording / reproducing apparatus according to the third embodiment. In this embodiment, a reproduction environment acquisition means 74 for acquiring the environment at the time of reproduction is provided. In the reproduction mode, the restoration unit 40 considers the reproduction environment from the reproduction environment acquisition unit 74 and outputs the appropriate reproduction content according to the environment.

8.2. Specific Configuration Example and Operation of Receiving / Recording / Reproducing Apparatus A block diagram in the case of realizing the receiving / recording / reproducing apparatus 32 shown in FIG. 19 using a CPU is similar to FIG.

This device has three modes: a reception mode, a recording mode, and a reproduction mode. The operation of the reception mode, recording mode, and reproduction mode will be described below.

(1) Reception mode In this embodiment, bilingual (for example, English and Japanese)
A case of receiving a broadcast will be described as an example. In the case of bilingual broadcasting, as shown in FIG.
Two streams of (A) 1J and ES (A) 1E are multiplexed. The voice data ES (A) 1J is Japanese voice, and the voice data ES (A) 1E is English voice.

FIG. 21 is a flowchart showing a program in the reception mode recorded in the memory 60. The basic processing is the same as in FIG. In step S121, the CPU 58 sets the SID PID in the control data separation register of the TS decoder 50 to acquire the SDT. The SDT (Service Description Table) describes the details of each service multiplexed in this transport stream. Also, SDT
In the case of bilingual broadcasting, it also describes which packet ID each stream corresponds to, and which language is selected as a default. CP
U58 acquires the packet ID of this default voice. Here, the packet ID of ES (A) 1J is described, and it is assumed that this is acquired.

The CPU 58, in step S20,
The packet ID of ES (V) 1 and the packet ID of ES (A) 1J are set in the TS decoder 50. As a result, the service in Japanese voice is output.

The operator gives a voice switching command to the operation input section 54 to control the ES 58 under the control of the CPU 58.
(A) 1E can be separated and switched to an English voice service.

(2) Recording Mode FIG. 22 is a flowchart showing a recording mode program recorded in the memory 60. The basic processing contents are
It is similar to FIG. However, in step S23, ES (A) for Japanese voice and ES for English voice
Both packet IDs of (A) are set and output to the recording / reproducing unit 70. Therefore, both the Japanese voice ES (A) and the English voice ES (A) are recorded on the magnetic tape 44. CPU58
In step S25, the packet ID of the Japanese ES (A) and the English ES (A) described in the SDT.
The packet ID of is included in the SIT description. (3) Playback Mode FIG. 23 is a flowchart showing the program in the playback mode recorded in the memory 60. The basic processing contents are
It is similar to FIG.

The CPU 58 executes steps S321 and S32.
2. In S327, the packet ID of ES (A) of Japanese voice and the packet ID of ES (A) of English voice are acquired and temporarily stored in the memory 60. Next, the CPU 58
Reads out the installation location information recorded in advance in the memory 60 (step S328). Here, it is assumed that the device where the reproduction is performed is installed in the United States.

Next, the CPU 58 selects an appropriate language based on the correspondence table (not shown) of the installation place and the language recorded in the memory 60. Here, English is selected, and the packet ID of ES (A) of English voice is selected as the default.

The CPU 58, in step S36,
The ES (A) packet ID of the English voice is set in the TS decoder 50. As a result, the service in English voice is output in the default state.

By giving a voice switching command to the operation input unit 54, the operator can separate the ES (A) of the Japanese voice and switch to the service of the Japanese voice by the control of the CPU 58. 8.3. Other Reproduction Environment etc. In the above embodiment, the reproduction content is changed based on the installation location of the reproduction device. However, the reproduction content may be changed based on the reproduction environment such as the reproduction time or the reproduction device (device ID or device type).

Further, in the above embodiment, the reproduction environment acquisition means 74 is provided to realize the reproduction contents according to the reproduction environment. However, without providing the reproduction environment acquisition unit 74, the reproduction content different from the reception mode may be output based on the fact that the reproduction mode is set.

9. Other Embodiments In the above embodiments, the data indicating the reproduction environment and the contents to be processed corresponding thereto are recorded in advance in the memory 60 of the receiving / recording / reproducing apparatus. However, this data may be included in the transport stream from the transmitting device and transmitted, and the recording / reproducing device on the receiving side may change the processing content according to the reproduction environment in accordance with this data.

E) Fourth Embodiment 10. Outline of Interactive Satellite Broadcasting System Before explaining the fourth embodiment, an outline of an interactive broadcasting system will be described.

The structure of the transmitting device is the same as that of FIG. However, the difference is that the control data generation unit 6 also generates navigation data described later.

FIG. 24 shows the data structure of the transport stream sent from the transmitter in the interactive broadcasting system. In the figure, the video ES (V) 11, ES of the service SV11
(V) 12, audio ES (A) 11 and ES (A) 12 are shown, and video and audio elementary streams of other services are omitted. The difference from the data structure of FIG. 3 is that one service SV11 includes two video / audio ESs. The two video / audio ESs can be interactively switched based on the navigation data NVT1 and NVT2, which are interactive control data, according to the operation of the receiving side operator. Further, based on the navigation data NVT1 and NVT2, the additional display can be interactively changed according to the operation of the operator on the receiving side.

FIG. 25 shows the contents of PMT1 of the service SV11. The control data PMT1 includes a packet I of each content (video, audio, navigation data).
D, a packet ID of ECM data for obtaining a key for descrambling the content is described. Further, since there are a plurality of contents for video, audio, and navigation data, the one to be output first is described as the entry contents. This control data PM
The packet ID of T1 itself is “0x0011”.

FIG. 26 shows the contents of the control data PAT. The control data PAT includes services SV11 and SV multiplexed in the transport stream TS1.
Packet I of PMT for 12, SV13, SV14
D is described. Thereby, it can be known that the packet ID of the service SV11 is “0x0011”. The packet ID of the control data PAT itself is fixedly set to "0x0000".

27 and 28 show the contents described in the navigation data NVT1 and NVT2. The same set of navigation data NVT1 and NVT2 is repeatedly sent over a predetermined period. By using the navigation data NVT1 and NVT2, it is possible to interactively change the content of the service as shown in FIGS. 29 to 32 according to the operation of the operator. The details will be described later.

11. Receiving / Recording / Reproducing Apparatus 11.1. Overall Configuration of Receiving / Recording / Reproducing Apparatus FIG. 33 shows an overall configuration diagram of the receiving / recording / reproducing apparatus 32 according to this embodiment. The radio waves captured by the antenna 20 are demodulated by the receiving means 34 as one transport stream. In the receiving mode, the transport stream from the receiving means 34 is restored by the restoring means 4
Given to 0. The restoration unit 40 selects a packet relating to a desired service from this transport stream, and according to the content of the packet, a service content signal (for example, a composite signal such as NTSC).
Is restored and output. The video / image output means 46 receives the service content signal and outputs a video or an image.

Further, the restoring means 40 has the operation receiving means 54.
Based on the operation input from, the content of the service signal to be output is interactively changed according to the navigation data.

In the recording mode, the transport stream from the receiving means 34 is given to the converting means 36. The converting means 36 converts this transport stream into a packet multiplexed stream in a state suitable for recording and outputs it as a converted stream. Conversion means 36
Selects a packet relating to a desired service from the transport stream, and selects only a packet necessary for reproduction from these packets to generate a converted stream. When the desired service includes navigation data, the conversion unit 36 generates a conversion stream including navigation data. The recording means 38 records this converted stream in the recording medium 4.
Record in 4.

In the reproduction mode, the reading stream is read from the recording medium 44 by the reading means 42. The read converted stream is provided to the restoration unit 40. The restoring means 40 restores and outputs a service content signal (for example, a composite signal such as NTSC) according to the content of the converted stream. Video
The image output means 46 receives this service content signal,
Output video and images.

The restoring means 40 has the operation receiving means 54.
Based on the operation input from, the content of the service signal to be output is interactively changed according to the navigation data.

In this embodiment, the service content signal from the restoring means 40 is not recorded as in the conventional apparatus, but is recorded in the packet state as it is.
Therefore, since the control data can be recorded together with the recording, the recording and reproduction can be performed without impairing the satellite broadcasting function based on the control data. In particular, since navigation data is also recorded, it is possible to reproduce an interactive service even during reproduction.

With the method of recording with the video composite signal as in the conventional apparatus, only the fixed contents according to the operation input at the time of recording can be recorded even in the interactive service. However, according to this embodiment, recording can be performed while maintaining the interactivity.

Since both video and audio can be recorded in a digitally compressed state, the capacity of the recording medium can be effectively utilized. Furthermore, since only the packet relating to the desired service is selected and recorded from the transport stream, the capacity required for recording can be reduced. In addition, since only the packet necessary for reproduction is selected and recorded from the packets, the capacity required for recording can be reduced.

11.2. Specific Configuration Example and Operation of Reception Recording / Reproducing Device FIG. 34 shows the reception recording / reproducing device 32 shown in FIG.
The block diagram when it implement | achieves using is shown. The receiving / recording / reproducing device 32 includes a receiving unit 68 and a recording / reproducing unit 70. The CPU 58 controls each unit according to the program recorded in the memory 60.

This device has three modes: a reception mode, a recording mode, and a reproduction mode. The operation of each mode will be described below.

(1) Reception Mode Here, it is assumed that a transport stream as shown in FIG. 24 is being sent. Also, the service SV
11 includes video data ES (V) 11 and ES (V) 1.
2. Audio data ES (A) 11 and ES (A) 12 are included, and video data ES (V) 11 and audio data ES are included.
(A) 11 is contents of TV shopping regarding daily necessities, video data ES (V) 12, audio data ES (A)
It is assumed that 12 is the content of the TV shopping regarding clothing.

The reception mode program recorded in the memory 60 is shown in the flow chart of FIG.

The operation when the CPU 58 is given a command to switch to the service SV11 of the transport stream TS1 assuming that the service SV13 of the transport stream TS1 is currently being received will be described below. The command to the CPU 58 is given from the operation panel or the operation remote controller. The operation input unit 54 shown in FIG. 34 is a light receiving unit that receives a command from the operation panel or the operation remote controller.

First, the CPU 58 sets the PAT packet ID in the control data separation register (not shown) of the transport decoder (TS decoder) 50.
The packet ID of PAT is fixedly set to "0x0000". As a result, the TS decoder 50 records the content of the separated PAT in the memory 60 (step S11). In this PAT, a list of services multiplexed in the currently received transport stream TS1 is described (see FIG. 26). Therefore, CP
The U58 knows that the desired service SV11 is multiplexed in the transport stream TS1 currently being received. That is, the CPU 58 advances the process from step S12 to S18.

At step S18, the obtained PA
Based on T, the packet ID of the PMT of the desired service SV11 is acquired. Here, “0x0011” is acquired (see FIG. 26). Next, the CPU 58 causes the PMT
The packet ID “0x0011” of the TS decoder 50
Set to the control data separation register of. As a result, the PMT1 of the service SV11 can be separated and its contents can be acquired in the memory 60 (step S1).
9).

FIG. 25 shows the PMT1 of the service SV11. The CPU 58 determines whether or not the service SV11 includes the navigation data NVT (that is, whether or not the service is interactive) based on the PMT1 (step S191). If the NVT is not included, the same processing as in the case of FIG. 11 is performed, and the content of the service is output from the TV set 46 (steps S20, S21, S22).

When the NVT is included as shown in FIG. 25, the CPU 58 recognizes the packet ID of the video, audio and navigation data which is the entry content and the packet ID of the ECM thereof from the content of the PMT 1 (step S192). ). Here, the video data ES (V) 1
Packet ID “0x0096” of 1 and audio data ES
(A) 11 packet ID "0x0098", navigation data NVT1 packet ID "0x0092"
And the packet ID “0x00” of these ECM data
82 ”is recognized.

Next, the CPU 58 causes the ECM packet I
D "0x0082" is set in the control data separation register of the TS decoder 50 to acquire ECM data.
Furthermore, this ECM data is given to the IC card 56, and I
The scramble key restored by the C card 56 is acquired. The scramble key obtained in this way is
The scrambler 48 is set (step S193). As a result, the video data ES (V) 1 of the service SV11
1, ES (V) 12, voice data ES (A) 11, ES
(A) 12, navigation data NVT1, NVT2
The packet is descrambled.

Further, the CPU 58 causes the packet ID "0" of the video and audio data ES (V) 11, ES (A) 11.
“X0096” and “0x0098” are set in the ES separation register (not shown) of the TS decoder 50 (step S194). As a result, the TS decoder 50 causes the separated video and audio data ES (V) 11, ES (A).
11 is output to the AV decoder 52.

Upon receiving this, the AV decoder expands (decompresses) the compression and performs D / A conversion to generate a video composite signal. This signal is given to the TV set 46 and output as video / audio. Here, it is assumed that a moving image of daily necessities television shopping is displayed as shown in FIG. In addition, buttons B0 and B at the bottom right of the screen
1 and B2 are displayed by the following navigation data, and video and audio data ES (V) 1
1, not included in ES (A) 11.

The CPU 58 also executes the above step S19.
4, the packet ID “0x0092” of the navigation data NVT1 is set in the control data separation register (not shown) of the TS decoder 50. As a result, the navigation data NVT1 is temporarily recorded in the memory 60. Here, it is assumed that the navigation data NVT1 as shown in FIG. 27 is fetched.

Subsequently, the navigation data thus recorded is interpreted and executed (step S19).
5).

FIG. 37 shows a flow chart of a program for interpreting and executing the navigation data recorded in the memory 60.

First, the navigation data NV shown in FIG.
The object index number "0" is read from the object table of T1 and the button is displayed on the screen based on the information shown here (step S10).
01). That is, X coordinate "500", Y coordinate "200"
At the position of, the bitmap data shown in the bitmap table is displayed. For the object with the index number “0”, it is predetermined to display the bitmap in the focused state. Therefore, here, it is controlled to display the data of the bitmap index number "1" (highlighted for "Apply to Osaka Center").

Specifically, the CPU 58 gives the data of the bitmap index number "1" (highlighted for "Apply to Osaka Center") to the video composition section 52c of the AV decoder 52. As a result, the video synthesizing unit 5
2c generates image data in which the highlight display of "Apply to Osaka Center" is superimposed on the video data ES (V) 11. Therefore, in the TV set 46,
As shown in FIG. 29, the button B0 is displayed.

Similarly, the button B1 of FIG. 29 is displayed based on the information of the index “1” of the object table of the navigation data NVT1 of FIG. However, data other than the object index “0” is displayed as the bitmap index data in the normal state. That is, here, the display processing of "apply to Tokyo Center" which is not highlighted is performed (step S1002).

Further, similarly, based on the information of the index "2" of the object table, the display process of the button B2 "to clothing shop" (non-highlighted display) of FIG. 29 is performed (step S1002). .

As described above, as shown in FIG.
A display in which the buttons B0, B1, and B2 are superimposed on the moving image of the product description is obtained. As is apparent from the screen, the button B0 "Apply to Osaka Center" is displayed as selected. In response to this, the CPU 58
Stores that the object index “0” is the currently selected object.

Next, when the key 82 for moving the cursor downward is pressed from the remote controller 78 (or the operation panel of the main body) shown in FIG. 38, the operation input section 54 receives this,
Notify the CPU 58. The CPU 58 determines what the operation input is (step S1003), and if it is a “key for moving the cursor downward”, the process proceeds to step S1004.

In step S1004, the number of the currently selected object is incremented according to the object table of the navigation data NVT1 to bring the object index "1" into the selected state. That is, for the object index “1”, the bitmap shown in the focus state column is displayed, and for the other object indexes “0”
For "2", the bitmap shown in the normal state column is displayed.

As a result, the screen of the TV set 46 changes as shown in FIG. That is, the button B1 “Apply to Tokyo Center” is selected.

Further, when the operator presses the key 82 for moving the cursor downward, the screen display is in a state in which the button B2 "to clothing shop" is selected as shown in FIG. When the key 80 for moving the cursor up is pressed from the state shown in FIG. 31, the screen display returns to the state shown in FIG.

In the above embodiment, only the operation of the up and down cursor keys 80 and 82 is shown. However, if the object index is a two-dimensional array, the operation of the left and right keys 86 and 88 is also taken into consideration. be able to.

In the state shown in FIG. 31, when the enter button 84 of the remote controller 78 is pressed, the CPU 58 causes the step S
The process proceeds from 1003 to S1005. In step S1005, the CPU 58 causes the navigation data NVT1.
To obtain the handler index described in the handler column of the currently selected object index. Here, since the object index “2” is selected, the handler index “2” in that handler field is acquired.

Further, referring to the handler definition table, the script corresponding to the handler index "2" is fetched and executed (step S1006). here,
Get "go to contents (index 1)". go to cont
ents () is an instruction to switch to the content having the index number in () shown in the hyperlink table.
Therefore, the content is switched to the content of the hyperlink index "1" shown in the hyperlink table (television shopping for clothing).

In the hyperlink index "1" of the hyperlink table, the packet ID "0x009" of each of the video, audio and navigation data that is the link destination.
7 ”,“ 0x0099 ”, and“ 0x0093 ”are described. The CPU 58 stores the packet IDs “0x0097” and “0x009” in the ES separation register of the TS decoder 50.
9 "is set, and the packet ID" 0x0093 "is set in the control data separation register.

As a result, the TS decoder 50 outputs the video data ES (V) 12 and the audio data ES (A) 12 to the AV decoder. Therefore, the TV set 46
Displays a moving image of clothing TV shopping as shown in FIG. 32 and outputs the sound.

The navigation data NVT2 shown in FIG. 28 is separated by the TS decoder 50 and recorded in the memory 60 instead of the navigation data NVT1. About this navigation data NVT2,
The process shown in FIG. 37 is performed, and buttons B10, B11, B12 are displayed as shown in FIG.

When the operator presses the OK button 84 (see FIG. 38) while the “Apply to Osaka Center” button B10 is selected as shown in FIG. 32, the purchase application for the product displayed on the screen is applied. It can be performed. The processing will be described below.

When the enter button 84 is pressed, the CPU 58
Advances the process from step S1003 to step S1005. In step S1005, the handler index is acquired from the handler column of the index that is currently selected according to the object table of the navigation data NVT2 (see FIG. 28).
Here, since the object index “0” is in the selected state, the handler index “0” is acquired.

Next, the CPU 58 executes the script corresponding to the handler index "0" in the handler definition table. That is, send_string (index1, index2) is executed. send_string (A, B) is an instruction to call the telephone number of index “A” in the character string table and transmit the character string of index “B”. So here
The CPU 58 acquires “06-6368-XXXX” corresponding to the character string index “0” in the character string table, and FIG.
The line communication unit 76 shown in FIG.
-Call "XXXX". This telephone number is the telephone number of the Osaka reception center for this TV shopping. When the line is connected, the CPU 58 causes the "product code: B-1" corresponding to the character string index "2" in the character string table.
33 ”is transmitted. At this time, the CPU 58 acquires an ID for identifying the purchaser of the product from the IC card 56 or the memory 60, and also transmits this.

The CPU 58 records in the memory 60 as an online log whether or not the above communication was successful. FIG. 39 shows an example of the recording. If the communication is successful, "O" is recorded, and if unsuccessful, "X" is recorded. In addition,
The CPU 58 acquires and records the date and time of communication from the control data TDT included in the transport stream, a calendar, a clock and the like built in itself.

By displaying this log, it is possible to know whether or not the purchase application for the product has been correctly made.

As described above, the processing in the reception mode is executed. Although not described above, in this embodiment, the products described in the video data are changed with time. Therefore,
Correspondingly, navigation data having different contents (for example, different product code of index "2" in the character string table) is transmitted.

(2) Recording Mode FIG. 40 is a flowchart showing a recording mode program recorded in the memory 60. Steps S11 to S
22, S192 to S195 are the same as the reception mode. The process for recording a service that does not include navigation data, that is, the process following step S22,
This is as shown in FIG. Here, FIG. 40 shows a process for recording a service including navigation data, that is, a recording process performed in parallel with step S195. In FIG. 40, the process proceeds using the information (packet ID) acquired in the reception mode. However, when the recording mode is executed independently of the reception mode, it is necessary to obtain the PID of the desired service, the PID of the control data, etc. by the same processing as the reception mode.

The CPU 58, in step S23,
Packet ID of ES of service to be recorded, packet ID of navigation data NVT, packet I of NIT
D, PAT packet ID, PMT packet ID
It is set in a recording data separation register (not shown) of the TS decoder 50. When recording the service SV11, the packet IDs shown in FIGS. 25, 26, and 7 are set. For video data, audio data, and navigation data, packet IDs for both daily necessities television shopping and clothing television shopping are set.

Accordingly, the TS decoder 50 causes the video and audio data ES (V) 11, ES (V) 12, ES.
(A) 11, ES (A) 12, PAT, PMT1, NI
The T is output to the converted stream generation unit 62 of the recording / reproducing unit 70 in the packet state.

The CPU 58 uses the PM recorded in the memory 60.
T1 is acquired, and only the information regarding the desired service SV11 is selected from the described information, and the converted PMT1 is selected.
Is generated (step S24). For example, of the information included in the PMT1, the ECM packet ID is not needed during reproduction and is removed. As a result, of the information included in the PMT 1, the converted PM in which the information unrelated to the recording / reproduction of the desired service SV11 is removed.
T1 is obtained. FIG. 41 shows the converted PMT thus obtained.

[0244] Next, the CPU 58 generates control data SIT describing information on services and events (programs) included in the recorded converted stream (step S).
25).

The CPU 58 gives the converted PMT1 and SIT generated as described above to the MPU 64. MPU6
4 supplies this to the conversion stream generation unit 62 to generate a conversion stream.

The converted stream generating unit 62 receives the PAT from the TS decoder 50 and receives the desired service SV11.
Generate a transformed PAT containing only information about and replace the PAT with the transformed PAT. At this time, the NIT packet ID included in the PAT is changed to the SIT packet ID. FIG. 42 shows the converted PAT. In addition, the converted PM obtained by receiving the PMT from the TS decoder 50 from the MPU 64
Replace with T. In addition, the NI from the TS decoder 50
Replace T with the SIT received from MPU64.

Thus, the ES of the desired service,
A packet-multiplexed converted stream of the navigation data NVT, SIT, converted PAT, converted PMT is obtained.

The CPU 58 gives a recording command to the MPU 64 (step S27). In response to this, MPU64
Controls the recording / reading unit 66 to record the converted stream on the magnetic tape 44. The converted stream to be recorded is schematically shown in FIG.

When a recording stop command is given from the operation input unit 54, the CPU 58 gives it to the MPU 64 (steps S28 and S29). Upon receiving this, the MPU 64 stops recording by the recording / reading unit 66.

[0250] In the converted stream recorded on the magnetic tape 44, even control data and navigation data having the same content are packet-multiplexed and recorded many times. Therefore, reproduction can be performed even from the middle of the magnetic tape.

If the service selection is changed during recording, the changed service will be recorded from the middle. At this time, the conversion stream generation unit 62 detects itself that the information is discontinuous (or the CPU 5
Control data DIT (Discontinuity Information Table) indicating the discontinuity of the information is generated. Further, as shown in FIG. 14, this DIT is
Packet multiplexing is performed at the beginning of the changed service. Similarly, when new recording is performed, this DIT is added to the beginning. Also, DIT is added when different programs in the same service are continuously recorded.

However, the navigation data NVT1,
Changes in the reception screen based on NVT2 (Fig. 29-
32) regardless of the change (shown in FIG. 32).
All the video, audio, and navigation data included in 11 are recorded.

In this embodiment, the recording / reproducing apparatus 70 is provided with the converted stream generating section 62, but the receiving apparatus 68 is used.
It may be provided in the. Accordingly, the receiving device 68
The recording / reproducing apparatus 70 has only to record the converted stream output from the recording stream.

(3) Playback Mode FIG. 44 is a flow chart showing a playback mode program recorded in the memory 60. When a reproduction command is given from the operation input unit 54, the reproduction mode is set. In the following, description will be given assuming that the data recorded in the above recording mode is reproduced.

First, the CPU 58 gives a reproduction command to the MPU 64 in step S31. MPU64 is
In response to this, the recording / reading unit 66 is controlled, and the magnetic tape 4
4 to read the converted stream. The read converted stream is provided to the TS decoder 50.

Next, in the control data separation register of the TS decoder 50, the packet ID "0x000" of the converted PAT is written.
"0" is set, the converted PAT is separated from the converted stream and stored in the memory 60 (step S32). The packet ID “0x0011” of the converted PMT is recognized based on the description of the converted PAT (step S33).

Further, in the control data separation register of the TS decoder 50, the packet ID "0x00" of the converted PMT is written.
11 "is set to convert PMT from the conversion stream.
Are separated and stored in the memory 60 (step S34).
Based on the description of the converted PMT, it is determined whether the service to be reproduced includes the navigation data NVT (step S341). The process when the navigation data NVT is not included is shown in FIG.
Is the same as.

If the navigation data is included, the process proceeds to step S342. In step S342, the packet ID of the entry content is recognized based on the description of the converted PMT. Here, the packet ID “0x009” of the video data ES (V) 11, the audio data ES (A) 11, and the navigation data NVT 1 is used.
6 ”,“ 0x0098 ”, and“ 0x0092 ”are recognized (step S342).

Next, the CPU 58 sets the packet IDs of the video data ES (V) 11 and the audio data ES (A) 11 in the ES separation register of the TS decoder 50, and sets the navigation data in the control data separation register. NV
Set the packet ID of T1.

As a result, the TS decoder 50 separates the video data ES (V) 11 and the audio data ES (A) 11 from the converted stream. Separated video data E
The S (V) 11 and the audio data ES (A) 11 are output to the AV decoder 52 (step S343).

Upon receiving this, the AV decoder 52 expands (decompresses) the compression and performs D / A conversion to generate a video composite signal. This signal is given to the TV set 46 and output as video / audio. Therefore, an image as shown in FIG. 29 can be obtained.

Also, the TS decoder 50 separates the navigation data NVT1 from the converted stream,
The data is temporarily stored in the memory 60 (step S343). The navigation data NVT1 is interpreted and executed (step S345). The processing of this part is the same as the processing of FIG. 37 in the reception mode. Therefore,
As shown in FIG. 29, buttons B0, B1 and B2 are displayed in the state where button B0 is selected.

Thereafter, when the cursor movement buttons 80 and 82 of the remote controller 78 are pressed, the selected button is changed as shown in FIGS. 29, 30 and 31. Also, FIG.
When the enter button 84 is pressed in the state 1 of FIG.
As shown in, change to the contents of clothing TV shopping. Further, when the enter button 84 is pressed while the button B10 of FIG. 32 is selected, the Osaka center is called to apply for the product. The log is also recorded in the memory 60 as shown in FIG.

The distinction between the communication performed in the reception mode and the communication performed in the reproduction mode is also recorded in the mode column.

As described above, also in the reproduction mode, the contents can be interactively changed according to the operation of the operator, as in the reception mode.

When the presence of DIT in the conversion stream is found during reproduction, the CPU 58 returns to step S32 and performs the following processing of conversion PAT (step S3).
7). This is because DIT indicates a discontinuous point of recorded data. In addition, the display of the operation image (button B0 or the like) displayed based on the navigation data is stopped, and the interactive processing based on the currently stored navigation data is not performed.

When there is a reproduction stop command from the operation input unit 54 such as the remote controller 38, the CPU 58 sends this to the MPU 64.
(Steps S38 and S39). In response to this,
The MPU 64 controls the recording / reading unit 66 to stop reading from the magnetic tape 44.

11.3. Other Embodiments In the embodiment shown in FIG. 34, the TS decoder 50, the converted stream generating unit 62 and the CPU 58 (in particular, step S2
4, S25) realizes the conversion means 36.
Further, the TS decoder 50 and the CPU 58 (in particular, steps S32, S33, S34, S342, S343, S
The restoration means 40 is realized by 345). In this way, the TS decoder 50 is shared by both the conversion means and the restoration means, so that the configuration can be simplified.

In the embodiment shown in FIG. 34, the CPU 58 executes a part of conversion stream generation (step S2).
4, S25), but the conversion stream generating unit 62 may also perform these processes. Further, only the packet selected by the TS decoder 50 is converted stream generation unit 6
However, the transport stream from the descrambler 48 may be directly provided to the converted stream generation unit 62. In this case, the converted stream generation unit 62 selects a necessary packet.

Incidentally, in FIG. 34, the receiving / recording / reproducing apparatus 32 is shown.
However, the receiving device may include only the receiving unit 68. In this case, the output 50 of the TS decoder
It is preferable to provide a recording data output terminal for taking out a and a restoring data input terminal for receiving the converted stream 50b from the recording / reproducing unit 70.

Further, the recording / reproducing apparatus may be composed of only the recording / reproducing unit 70. Furthermore, a reproducing apparatus configured only by the reproducing function of the recording / reproducing unit 70 and a recording apparatus configured only by the recording function of the recording / reproducing unit 70 may be used.

In the above embodiment, the descrambled data is recorded, but the scrambled data may be recorded.
In this case, ECM data is also recorded. In this case, the ECM data may be recorded as it is, or E
It may be recorded as a part of IT data.

In the above embodiment, the case of using two video / audio and two navigation data is shown, but three or more video / audio and three or more navigation data may be used. Further, one navigation data may be used for a plurality of video / audio, or a plurality of navigation data may be used for one video / audio.

In the above embodiment, by repeatedly transmitting (repetitively and sequentially recording) a set of navigation data, all navigation data linked to each other at the time of reception or reproduction is stored in the memory 60.
The link is realized without being stored in (a recording device having random accessibility). Therefore, the memory 60
The capacity of can be reduced. This is especially effective when a large number of navigation data are linked.

On the other hand, if the number of linked navigation data is small, or if the memory 60 has a sufficient capacity, all the navigation data linked to each other may be stored in the memory 60. This allows
It is possible to reduce the frequency of repeating navigation data that is repeatedly transmitted. In addition, the link processing can be speeded up.

In the above embodiment, a moving image is transmitted as video data and is received and recorded / reproduced. However, a still image may be transmitted as video data and the recording / reproduction is performed. . In this case, as shown in FIG. 45, a set of still images A, B,
C and D are repeatedly transmitted. These multiple still images A,
By describing the mutual link relationships of B, C, and D in the object table of the navigation data and the hyperlink table, it is possible to realize a service with interactivity, as in the case of the above-mentioned moving image.

F) Fifth Embodiment 12. Transmitting Device The basic configuration of the transmitting device in this embodiment is as shown in FIG. However, the navigation data generated by the control data generation unit 6 is different from that in the fourth embodiment. In this embodiment, the navigation data is compared with the recording environment at the time of recording at the receiving side and the reproduction environment at the time of reproduction, and a description (program Script) is included.

Taking the television shopping described in the previous embodiment as an example, in this embodiment, for example,
Navigation data NV as shown in FIGS. 46 and 47
T1 and NVT2 are transmitted from the transmitter. In any of the navigation data NVT1 and NVT2, the contents of the script described in the handler definition table are different from those in FIGS. 27 and 28. The details of this script will be described in the processing of the receiving device.

13. Reception / Recording / Reproducing Apparatus 13.1. Overall Configuration of Reception / Recording / Reproducing Apparatus FIG. 48 shows the overall configuration of the reception / recording / reproducing apparatus according to this embodiment. In this embodiment, a recording environment acquisition unit 72 for acquiring the environment when creating a converted stream (that is, the environment at the time of recording) is provided, and the conversion unit 36 is
A converted stream including this recording environment is generated. Therefore, the converted stream including the recording environment is recorded on the recording medium 44.

The reproduction environment acquisition means 74 acquires the environment at the time of reproduction. The restoration unit 40 compares the reproduction environment from the reproduction environment acquisition unit 74 with the recording environment read from the recording medium, and changes the content of the reproduction control based on the difference between the both environments.

Therefore, appropriate reproduction can be performed based on the difference between the recording environment and the reproduction environment.

13.2. Specific Configuration Example and Operation of Receiving / Recording / Reproducing Apparatus A block diagram of the receiving / recording / reproducing apparatus 32 shown in FIG. 48 realized by using a CPU is the same as FIG. 34.

This apparatus has three modes of reception mode, recording mode and reproduction mode. The operation of the reception mode, recording mode, and reproduction mode will be described below.

(1) Reception mode The processing in the reception mode is the same as in FIG. However, the contents of the navigation data interpreted / executed in step S195 are different.

The TV shopping described in the above embodiment will be described as an example. The transport stream TS1 as shown in FIG. 24, which is the same as in the previous embodiment, is sent from the transmitting device. However, the navigation data NVT1 and NV as shown in FIGS.
Assume that T2 has been sent.

Here, it is assumed that the enter button 84 of the remote controller 78 is pressed on the screen in the state shown in FIG. In the state of FIG. 32, buttons are displayed according to the navigation data NVT2, and the button B10 is selected. Therefore, the CPU 58 is shown in FIG.
The handler index “0” described in the handler column of the index “0” of the object table of the navigation data NVT2 of No. 7 is acquired. Next, the script corresponding to the handler index “0” in the handler definition table is fetched and executed.

The first line of this script is an if statement.
If the conditions described after the if statement are met, then the scripts under the then are executed, and if they do not match, the scripts under the then (up to endif) are ignored. Here, the condition is that mode = reproduction, that is, whether or not it is the reproduction mode. The CPU 58 stores in the memory 60 the current operation mode that is switched according to the operation input from the operation input unit 54. Therefore, the CPU 58
The condition is judged according to this.

Since the reception mode is currently set, if in the first line
The condition of the statement does not match, and the next if statement is executed. Here, the condition is whether or not the reception mode is set. Since it is currently in receive mode, execute the script below then. That is, send_string (index1, index2) is executed. This made a call to the Osaka Center,
Application for product "B-133" is made.

(2) Recording Mode FIG. 49 is a flow chart showing a recording mode program recorded in the memory 60. The basic processing is shown in FIG.
Same as 0. In step S232, the CPU 5
8 is control data TDT (Time and Da) indicating the current date and time.
teTable) packet ID (described in NIT) is set in the control data separation register of the TS decoder 50. As a result, the contents of TDT are stored in the memory 60. Since TDT is sent frequently, CPU58
Holds only the latest TDT in the memory 60.

Next, when the SIT is generated, the CPU 58
The current date and time described in the latest TDT is included in the SIT description (for example, descriptor area) (step S2).
5). Therefore, the converted stream recorded on the magnetic tape 44 includes the recording date and time as the recording environment.

The time of recording may be acquired and recorded by a calendar device or a clock device built in the device.

(3) Playback Mode The processing in the playback mode is the same as that in FIG. However, the contents of the navigation data interpreted / executed in step S345 are different. Here, it is assumed that the above-mentioned TV shopping service is recorded on the magnetic tape 44.

As in the case of the reception mode, FIG.
It is assumed that the enter button 84 of the remote controller 78 is pressed during the reproduction of the state shown in FIG. In the state of FIG. 32, buttons are displayed according to the navigation data NVT2, and the button B10 is selected. Therefore, the CPU 58 acquires the handler index “0” described in the handler column of the index “0” of the object table of the navigation data NVT2 in FIG. 47. Next, the script corresponding to the handler index “0” in the handler definition table is fetched and executed.

[0294] Since the playback mode is currently set, the first line
The condition of if is satisfied, and the script below the second line is executed. First, the CPU 58 executes get_record_time Tr. This is an instruction to acquire the recording time recorded on the magnetic tape 44 and substitute it into the variable Tr. CPU58
Is S in the control data separation register of the TS decoder 50.
Set the packet ID of IT and acquire SIT.
Furthermore, the recording date and time included in this SIT is acquired, the recording time information is extracted, and stored in the memory 60 as a variable Tr.

Next, get_current_time Tc is executed.
This is an instruction to acquire the current time and substitute it into the variable Ts. As shown in FIG. 56, the CPU 58 acquires the current date and time from the built-in calendar clock 61 and stores it in the memory 60 as a variable Tc.

Furthermore, in the if statement in the next line, the current date and time
It is determined whether Tc has passed 10800 seconds or more from the recording date Tr. If more than 10800 minutes have not passed, se
Execute nd_string (index0, index2), call Osaka Center and apply for the product. If 10800 minutes or more have passed, send_string (index0, index2) is not executed.

As described above, according to this embodiment, the application deadline (in the above case, 10800
If the minutes are running out, you can choose not to apply for the product.

It should be noted that if the product application is operated but the application is not executed, T
This may be displayed on the screen of the V set 46. This can also be written as a script of navigation data.

If the script as shown in FIG. 50 is described, the content index "0" is linked when the relationship between the recording date and time and the reproducing date and time satisfies the condition A, and when the condition is not satisfied. It can be linked to the content index “1”. That is, even if the same operation is performed (even if the same handler is activated), it is possible to link to different contents based on the difference between the recording date and the reproduction date and time. With this, at the time of reproduction, it is possible to output appropriate contents according to the deviation from the recording date and time.

As described above, according to this embodiment, the processing contents when the α portion and β portion (see FIG. 46) of the script are executed differ depending on whether the mode is the reproduction mode or the reception mode. I have to. Therefore, a script intended to perform different controls in the reproduction mode and the reception mode can be transmitted from the transmission side.

In the above embodiment, the telephone is not called when the time limit has expired. However, a different telephone number (dedicated receptionist number when the time limit has passed) may be called. As a result, the seller can selectively use the telephone numbers that are concentrated within the deadline and the telephone numbers that are comparatively infrequently taken after the deadline.

In the above embodiment, the condition for execution is described as an if statement in the script, but an execution condition table may be provided as in the sixth embodiment.

13.3. Recording Environment and Reproduction Environment In the above embodiment, the date and time are used as the recording and reproduction environment. However, only the date or time of recording may be used. Also, whether or not it is a day of the week or a holiday may be used.

In the above embodiment, the recording date and time and the reproducing date and time are the recording environment and the reproducing environment. However, the device used for recording and the device used for reproduction may be the recording environment and the reproduction environment. For example, the type of the device is recorded as a recording environment, and the navigation data includes a description that compares the type of the recording device and the type of the reproducing device, and based on the difference, converts the recording data format and reproduces. It may be provided. Further, the recording location and the reproducing location may be the recording environment and the reproducing environment.

Further, in the above embodiment, the recording environment is described in SIT, but it may be described in conversion PAT, conversion PMT, or the like.

14. Other Embodiments In the above embodiment, data indicating the degree of deviation between the recording environment and the reproduction environment and the contents to be processed corresponding to this are provided.
The transmitting device transmits the data by including it in the transport stream, and the receiving / recording / reproducing device on the receiving side changes the processing content according to this data based on the difference between the recording environment and the reproducing environment. Therefore, the degree of deviation between the recording environment and the reproduction environment and the content to be processed correspondingly can be flexibly determined and changed from the transmitting side. However, as in the second embodiment of FIG. 16, the receiving / recording / reproducing apparatus may prepare the extent of the deviation between the recording environment and the reproducing environment and the content to be processed corresponding to the deviation. .

In the above embodiment, one set of navigation data is repeatedly transmitted (repeatedly and sequentially recorded). Further, in this navigation data, an operation image for distinguishing which is in the selected state and an image / sound link destination or display data according to the selected state are described. Thus, the case where a service having interactivity is realized has been described as an example. However, it is applicable to any service that has an interactive property such that the environment is recorded on a recording medium at the time of recording and the processing content is changed compared to the environment at the time of reproduction, and the method of realizing the interactive property is limited to the above. Not done.

G) Sixth embodiment 15. Transmitting device The basic configuration of the transmitting device in this embodiment is as shown in FIG. However, the navigation data generated by the control data generation unit 6 is different from that in the fifth embodiment. In this embodiment, the navigation data includes a description that changes the processing content based on the reproduction environment at the time of reproduction.

Taking the television shopping described in the previous embodiment as an example, in this embodiment, for example,
Navigation data NV as shown in FIGS. 51 and 52
T1 and NVT2 are transmitted from the transmitter. In each of the navigation data NVT1 and NVT2, a condition column is provided in the handler definition table, and a condition execution table corresponding thereto is newly added. The details of these execution conditions will be described in the processing of the receiving device.

16. Reception / Recording / Reproducing Apparatus 16.1. Overall Configuration of Reception / Recording / Reproducing Apparatus FIG. 53 shows the overall configuration of the reception / recording / reproducing apparatus according to this embodiment. In this embodiment, a reproduction environment acquisition means 74 for acquiring the environment at the time of reproduction is provided. In the reproduction mode, the restoration unit 40 considers the reproduction environment from the reproduction environment acquisition unit 74 and outputs the appropriate reproduction content according to the environment.

Therefore, it is possible to perform appropriate reproduction based on the reproduction environment.

16.2. Specific Example of Configuration of Receiving / Recording / Reproducing Apparatus and Operation The block diagram in the case of realizing the receiving / recording / reproducing apparatus 32 shown in FIG. 53 using a CPU is the same as FIG. 34.

This device has three modes: a reception mode, a recording mode and a reproduction mode. The operation of the reception mode, recording mode, and reproduction mode will be described below.

(1) Reception mode The processing in the reception mode is the same as in FIG. However, the contents of the navigation data interpreted / executed in step S195 are different.

The television shopping described in the above embodiment will be described as an example. From the transmitter, the navigation data NVT as shown in FIGS.
It is assumed that 1 and NVT2 have been sent.

Here, it is assumed that the enter button 84 of the remote controller 78 is pressed on the screen in the state shown in FIG. In the state of FIG. 32, buttons are displayed according to the navigation data NVT2, and the button B10 is selected. Therefore, the CPU 58 is shown in FIG.
The handler index “0” described in the handler column of the index “0” of the object table of the navigation data NVT2 of 2 is acquired. Next, the script and the condition corresponding to the handler index “0” in the handler definition table are fetched.

Since "0" is described in the condition column,
The condition corresponding to the execution condition index “3” in the execution condition table is acquired. That is, "23:59, August 31, 1998" is the execution deadline. The CPU 58 is
The current date and time is acquired from the TDT in the transport stream, a built-in calendar device, a clock device, and the like (reception time acquisition means), and it is determined whether or not the current date and time has passed the execution deadline.

If the execution deadline has not passed, the script corresponding to the handler index "0" in the handler definition table is executed. Therefore, the Osaka Center is called to apply for the product.

If the execution deadline has passed, the above script is not executed and no application is made.

(2) Recording mode The processing in the recording mode is the same as that in FIG.

(3) Reproduction Mode The processing in the reproduction mode is the same as that in FIG. However, the contents of the navigation data interpreted / executed in step S345 are different. Here, it is assumed that the above-mentioned TV shopping service is recorded on the magnetic tape 44.

As in the case of the reception mode, FIG.
It is assumed that the enter button 84 of the remote controller 78 is pressed during the reproduction of the state shown in FIG. In the state of FIG. 32, buttons are displayed according to the navigation data NVT2, and the button B10 is selected. Therefore, the CPU 58 acquires the handler index “0” described in the handler column of the index “0” of the object table of the navigation data NVT2 in FIG. 47.

Next, the script and condition corresponding to the handler index "0" in the handler definition table are fetched. Since "0" is described in the condition column, the condition corresponding to the execution condition index "3" in the execution condition table is acquired. In other words, "23:59, August 31, 1998"
Get the execution deadline. The CPU 58 is a TDT in the transport stream or a built-in calendar device,
The current date and time is acquired from a clock device or the like (reception-time acquisition means), and it is determined whether or not the current date and time has passed the execution deadline.

If the execution deadline has not passed, the script corresponding to the handler index "0" in the handler definition table is executed. Therefore, the Osaka Center is called to apply for the product.

If the execution deadline has passed, the above script will not be executed and no application will be made.

As described above, according to this embodiment, the application deadline (23:59 August 31, 1998 in the above case) even if an operation for applying for product purchase such as TV shopping is performed during reproduction. If the time has passed, it is possible not to apply for the product.

[0327] If the product application is operated but the application is not executed, T
This may be displayed on the screen of the V set 46. This can also be written as a script of navigation data.

In the above embodiment, the condition of whether or not to execute is described as the execution condition table, but it may be described as an if statement in the script as in the fifth embodiment.

16.3. Playback Environment In the above embodiment, date and time are used as the recording and playback environment. However, only the date or time of recording may be used. Also, whether or not it is a day of the week or a holiday may be used.

In the above embodiment, the reproduction date and time is set as the reproduction environment, and the reproduction content is determined based on the navigation data to determine the execution content. However, the device used for reproduction may be used as a reproduction environment, and the execution content may be determined by determining the reproduction device based on the navigation data. Further, the reproduction place may be the reproduction environment.

For example, in the above embodiment, which button is selected and displayed in the initial state is fixed. However, in the navigation data, which button is selected and displayed in the initial state may be described according to the reproduction environment (for example, the installation location of the reproduction device). By doing so, the display of FIG. 29 is obtained as the initial screen when reproduced by the device installed in Osaka, and the display of FIG. 30 is obtained as the initial screen when reproduced by the device installed in Tokyo.

Similarly, a reproduction environment (for example,
The initial sound of the bilingual broadcast can be selected according to the installation location of the playback device).

If the same operation is performed according to the receiving environment (for example, the installation location of the receiving device), an optimum initial screen can be obtained according to the receiving environment.

H) Seventh Embodiment In the above embodiment, the navigation data as shown in FIGS. 46 and 47 is used. However, in FIG.
As shown in Fig. 55, HTML (Hyper Text MarkupLanguag
The navigation data may be described using e). Since this HTML is widely used on the Internet, it is possible to realize control with high affinity with a computer.

In FIG. 54, "left: 500;
The position of the button B0 placed on the screen is specified by "top: 200". Also, "normal_bitmap_file: bitmap"
0 "and" focused_bitmap_file: bitmap1 "specify that the data of bitmap0 is used as the non-selected state and the data of bitmap1 is used as the selected state.
The display position is specified by t: 500; top: 200 "."
The script executed when the button in the selected state is determined is specified by onclick = "shopping_osaka ();". The other buttons B1 and B2 are similarly specified.

[0336] Part 210 is a script shopping_o which is executed when the application to the Osaka Center is decided.
saka () is described. The part 220 describes a script shopping_tokyo () which is executed when the application to the Tokyo Center is decided. The contents of the script are the same as in FIG.

[0337] In the portion 230, the script go executed when the transition to the clothing shop is selected and determined.
to_clothing_store () is described.

The HTML shown in FIGS. 54 and 55 corresponds to that shown in FIGS. 46 and 47, and brings about the same display screen and processing result. Instead of HTML, a self-describing language such as XML or BML may be used.

I) Eighth Embodiment In the above embodiment, the date and time described in the latest received TDT is included in the SIT and recorded on the recording medium, and this is read to obtain the recording time. However, although this method is simple in processing, it has a problem that the recorded time is not completely accurate. That is, as shown in FIG. 57, the time t1 is recorded during the time 301, and the time t2 is recorded during the time 302.

Therefore, if the accuracy of the recording time is required, the recording time may be recorded as follows. As shown in FIG. 56, the CPU 58 calibrates the calendar timepiece 61 based on the received TDT. When generating the SIT, the CPU 58 acquires the time from the clock with a calendar and records the time in the SIT. By doing so, the recording time can be more accurately recorded on the recording medium.

At the time of reproduction, the recording time is acquired based on the recording date and time in the SIT read from the recording medium. In other words, get the recording date and time in SIT,
The latest recording date and time is updated and stored in the memory 60,
It is used as the latest recording date and time.

In the acquisition of the recording time at the time of reproduction, the problem of inaccuracy of time arises as in the case of recording. Therefore, an accurate recording time may be acquired by using the built-in timer 63 of the CPU 58. That is, as shown in FIG. 58, the timer 63 is reset and started each time the recording date and time in the SIT is acquired.
When acquiring the recording time, the accurate recording time t1 + Δt can be obtained by adding the time Δt measured by the timer 63 to the time t1 indicated by the latest recording date and time.
Can be obtained. Instead of the timer, a clock with a calendar for recording time may be prepared and used by calibrating it according to the recording date and time in the SIT.

Further, in the above example, in the reception mode and the recording mode, the clock 61 with a calendar indicating the current time is displayed.
Have been calibrated by TDT. However, in the playback mode, a clock 61 with a calendar indicating the current time is displayed.
Are not calibrated by TDT. This is because, in the playback mode, the transport decoder 50 reads and processes the converted stream from the recording medium, and thus cannot acquire the TDT from the stream that is broadcast. Therefore, an error may occur in the current time indicated by the calendar clock 61.

In order to eliminate such an error, FIG.
In addition to the TS decoder 50, another T
The S decoder 150 may be provided. In the reproduction mode, the recording date and time in the SIT recorded by the TS decoder 150 is taken out and recorded in the memory 60, and
The CPU 58 controls the timer 63. On the other hand, the TS decoder 50 takes out the received TDT and calibrates the calendar watch 61. By doing this, accurate time can be obtained for both the recording time and the current time.

In the embodiment of FIG. 59, the tuner 1
34 and the descrambler 148 are also provided, it is possible to output other services from the TV set 46 while recording a specific service.

In each of the above embodiments, the TDT
However, instead of this, TOT (Time Offset T
able) may be used.

J) Others In any of the above embodiments, some or all of the functions realized by using the CPU may be realized by hardware. Further, in any of the above embodiments, a part or all of the functions realized by hardware may be realized by using a CPU.

Further, in the above-mentioned embodiment, a magnetic tape for performing sequential recording is described as an example of the recording medium for recording the converted stream.
A recording medium such as a magneto-optical disk, a hard disk, a flexible disk, a DVD or a CD-R may be used.

[Brief description of drawings]

FIG. 1 is a diagram showing a transmission state of radio waves in satellite broadcasting.

FIG. 2 is a diagram showing a configuration of a transmission device in satellite broadcasting.

FIG. 3 is a diagram showing a transport stream transmitted in satellite broadcasting.

FIG. 4 is a diagram showing a structure of packetized data.

FIG. 5 is a diagram showing the contents of control data PMT1.

FIG. 6 is a diagram showing the contents of control data PAT.

FIG. 7 is a diagram showing the contents of control data NIT.

FIG. 8 is a diagram showing a general configuration of a receiving device.

FIG. 9 is a diagram showing an overall configuration of a receiving / recording / reproducing apparatus according to the first embodiment.

10 is a block diagram of a case where the reception recording device of FIG. 9 is realized by using a CPU.

FIG. 11 is a flowchart of a program in a reception mode.

FIG. 12 is a flowchart of a program in a recording mode.

FIG. 13 is a diagram showing a converted stream recorded on a recording medium.

FIG. 14 is a diagram showing a state in which control data DIT is inserted.

FIG. 15 is a flowchart of a program in a reproduction mode.

FIG. 16 is a diagram showing an overall configuration of a receiving / recording / reproducing apparatus according to a second embodiment.

FIG. 17 is a flowchart of a program in a recording mode.

FIG. 18 is a flowchart of a program in a reproduction mode.

FIG. 19 is a diagram showing an overall configuration of a receiving / recording / reproducing apparatus according to a third embodiment.

FIG. 20 is a diagram showing a transport stream of a bilingual broadcast.

FIG. 21 is a flowchart of a program in the reception mode.

FIG. 22 is a flowchart of a program in a recording mode.

FIG. 23 is a flowchart of a program in playback mode.

FIG. 24 is a diagram showing a transport stream according to the fourth embodiment.

FIG. 25 is a diagram showing the content of control data PMT1.

FIG. 26 is a diagram showing the contents of control data PAT.

FIG. 27 is a diagram showing the content of navigation data NVT1.

FIG. 28 is a diagram showing the content of navigation data NVT2.

FIG. 29 is a diagram showing a screen for daily necessities television shopping displayed on the TV set 46.

FIG. 30 is a diagram showing a screen for daily necessities television shopping displayed on the TV set 46.

FIG. 31 is a diagram showing a screen for daily necessities television shopping displayed on the TV set 46.

FIG. 32 is a diagram showing a clothing TV shopping screen displayed on the TV set 46;

FIG. 33 is a diagram showing an overall configuration of a receiving / recording / reproducing apparatus according to a fourth embodiment.

34 is a diagram showing a hardware configuration when the reception recording / reproducing apparatus of FIG. 33 is realized by using a CPU.

[Fig. 35] Fig. 35 is a diagram illustrating details of the AV decoder 52.

FIG. 36 is a flowchart of a program in the reception mode.

FIG. 37 is a flowchart of a program (basic program) that interprets and executes navigation data.

FIG. 38 is a diagram showing an appearance of a remote control device 78.

FIG. 39 is a diagram showing the contents of a communication log recorded in the memory 60.

FIG. 40 is a flowchart of a program in a recording mode.

FIG. 41 is a diagram showing the contents of a converted PMT.

FIG. 42 is a diagram showing the contents of a converted PAT.

[Fig. 43] Fig. 43 is a diagram schematically showing a converted stream recorded on a recording medium.

FIG. 44 is a flowchart of a program in playback mode.

FIG. 45 is a diagram showing a case of transmitting a still image.

FIG. 46 is a diagram showing the contents of navigation data NVT1.

FIG. 47 is a diagram showing the content of navigation data NVT2.

FIG. 48 is a diagram showing an overall configuration of a receiving / recording / reproducing apparatus according to a fifth embodiment.

FIG. 49 is a flowchart of a program in a recording mode.

FIG. 50 is a diagram showing another example of the script of the handler definition table.

FIG. 51 is a diagram showing the content of navigation data NVT1.

FIG. 52 is a diagram showing the content of navigation data NVT2.

FIG. 53 is a diagram showing an overall configuration of a reception / recording / reproducing apparatus according to a sixth embodiment.

FIG. 54 is a diagram showing HTML navigation data NVT1 in the seventh embodiment.

FIG. 55 is a diagram showing HTML navigation data NVT2 in the seventh embodiment.

FIG. 56 is a diagram showing an internal structure of a CPU 58.

FIG. 57 is a diagram showing a time recording state in the recording mode.

FIG. 58 is a diagram showing a recording time acquisition state in the reproduction mode.

FIG. 59 is a block diagram of a receiving / recording / reproducing apparatus according to an eighth embodiment.

[Explanation of symbols]

20 ... antenna 32 ... Reception recording / reproducing apparatus 34 ... Receiving means 36 ... Conversion means 38 ... Recording means 40 ... Restoration means 42 ... Read-out means 46 ... Video / audio output means 48 ... De Scrambler 50: Transport decoder 52 ... AV decoder 54: Operation input section 56 ... IC card 58 ... CPU 60 ... Memory 62 ... Transform stream generation unit 64 ... MPU 66 ... Recording / reading unit 68 ... Receiver 70 ... Recording / playback unit 72 ... Recording environment acquisition means 74: Reproduction environment acquisition means

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP 2000-41066 (JP, A) JP 10-178614 (JP, A) JP 6-349196 (JP, A) JP 8-77706 (JP, A) (58) Fields surveyed (Int.Cl. ⁷ , DB name) H04N 5/76-5/956 G11B 20/10-20/12

Claims (5)

(57) [Claims] 1. A receiving means for receiving a transport stream in which a plurality of services are packet-multiplexed, and a converting means for selecting a packet relating to a desired service from the received transport stream and outputting it as a converted stream. Recording means for recording the converted stream from the converting means on a recording medium; reading means for reading the converted stream recorded on the recording medium; and restoration for receiving and outputting the service content by receiving the converted stream from the reading means. a recording and reproducing apparatus for digital broadcasting, comprising: a means, said converting means, TD in the transport stream
Acquires recording information based on T, TOT or PCR
The recording means records the recording time information on the recording medium together with the converted stream or as a part of the converted stream, and the restoring means reproduces the converted stream from the reading means.
We have a reproduction time information indicating the time and compares the recording time information recorded on the recording medium, based on the difference between them, those characterized by Rukoto changing the contents of the playback control. 2. The recording / reproducing apparatus according to claim 1, wherein the conversion means selects a packet of an elementary stream, a PAT, or a PMT from among packets related to a desired service in the transport stream to generate a converted stream. Characterized by 3. The recording / reproducing apparatus according to claim 2, wherein the converting means sets the current date and time described in the TDT to SIT.
To generate a transformed stream by including
What is characteristic. 4. The apparatus according to any one of claims 1 to 3 , wherein the restoring means changes the content of the reproduction control to change the content of the service content signal to be output. 5. A transport stream in which a plurality of services are packet-multiplexed is received, a packet related to a desired service is selected from the received transport streams as a converted stream, and the converted stream is recorded on a recording medium. A recording / reproducing method of recording, reading a converted stream recorded on a recording medium, receiving the converted stream, reproducing and outputting the service content, which is a TDT or TOT in a received transport stream.
Alternatively, based on the PCR, the recording time information is acquired, and the recording time information is recorded on the recording medium together with the conversion stream or as a part of the conversion stream, and at the time of reproduction, the reproduction stream of the conversion stream from the reading unit is reproduced. Indicates when
It is characterized in that the reproduction information is compared with the recording information recorded on the recording medium, and the content of the reproduction control is changed based on the difference between the two environments.