JP2007104553A - Receiving device, method and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To flexibly respond to requests for detailed adjustments of picture quality, sound quality, etc., from each customer. <P>SOLUTION: An adjustment value memory 25 comprises an unrewritable area 25a which stores various adjustment values of respective parts of a receiving device 1, and also stores adjustment values never to be rewritten after shipment; and a rewritable area 25b which stores adjustment values to possibly be written after the shipment such as operations of an adjustment part 32 by the serviceman of the receiving device 1, and update data to be multiplexed with a broadcast signal. Each element of an adjustment value stored in the rewritable area 25b is provided with a rewriting inhibition flag which indicates rewriting inhibition when 1 is set, and rewriting permission when 0 is set. The value of this rewriting inhibition flag is set to 1 as the serviceman changes the adjustment value. The device and the method are applicable to a digital television broadcast system which transmits update data of software etc., of a receiver receiving the broadcast signal. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a receiving apparatus, method, and program, and more particularly, to a receiving apparatus, method, and program that can flexibly handle adjustments such as image quality and sound quality for each customer.

  As shown in Non-Patent Document 1, in digital television broadcasting, a mechanism for transmitting / receiving update data for updating software of a receiver using radio waves transmitted from a broadcasting station is used.

  In this operation, common data including a broadcaster's logo and genre code, software update data, and the like are transmitted as download data from the broadcasting station. A download notification information table (SDTT: Software Download Trigger Table) for notifying the receiver that the software update data is downloaded before the software update data is transmitted as download data. It is periodically multiplexed (superimposed) and transmitted to the broadcast wave, and this SDTT is stored in a non-volatile memory and monitored so that the receiver selectively downloads update data that updates its own software. (Receive) and update the own software with the update data (see Patent Document 1).

  Conventionally, rough adjustments such as image quality and sound quality in the receiver can also be performed by the user by using a menu screen or the like displayed on the monitor.

Digital broadcasting receiver standard ARIB STD-B21, 4.0 edition, download function, Japan Radio Industry Association, H15.2.6, P. 120 and P.I. 178 JP 2002-112133 A

  However, detailed adjustments such as volume curves and actual numerical values cannot be performed by the user, and there is only a method in which the service person of the receiver visits each home that requires adjustment.

  The present invention has been made in view of such a situation, and is capable of flexibly responding to fine adjustment requests for image quality and sound quality from each customer.

  A receiving apparatus according to an aspect of the present invention changes an adjustment value set to adjust a predetermined output output from an output unit in accordance with an operation of an operator in a receiving apparatus that receives a broadcast signal. An adjustment value changing means, a flag setting means for setting a flag indicating that rewriting is prohibited for the adjustment value changed by the adjustment value changing means, and the adjustment value multiplexed and transmitted to the broadcast signal. An acquisition unit that acquires update data for updating, and a flag determination unit that determines whether or not the flag is set for an adjustment value to be updated by the update data acquired by the acquisition unit And an adjustment value update unit that updates the adjustment value to be updated using the update data when the flag determination unit determines that the flag is not set. Provided.

  When it is determined by the flag determination means that the flag is set, the adjustment value update means can prohibit the update of the adjustment value to be updated.

  The output unit may further include a video adjustment unit that outputs a video and adjusts data corresponding to the video output from the output unit based on the adjustment value.

  The output means may further include sound adjustment means for outputting sound and adjusting data corresponding to the sound output from the output means based on the adjustment value.

  The reception method according to one aspect of the present invention is an adjustment value set for adjusting a predetermined output output from the output unit in accordance with an operation of the operator in the reception method of the reception device that receives a broadcast signal. An adjustment value changing step for changing the adjustment value, a flag setting step for setting a flag indicating rewrite prohibition with respect to the adjustment value changed by the processing of the adjustment value changing step, and being multiplexed with the broadcast signal and transmitted An acquisition step for acquiring update data for updating the adjustment value, and whether or not the flag is set for the adjustment value to be updated by the update data acquired by the processing of the acquisition step A flag determination step for determining whether or not the flag is set by the processing of the flag determination step, the update data is used. Includes an adjustment value update step of updating the adjustment value as a target of the update.

  A program according to an aspect of the present invention is a program that causes a computer to perform a process of receiving a broadcast signal, and is set to adjust a predetermined output output from an output unit in accordance with an operation of an operator. An adjustment value changing step for changing the adjustment value, a flag setting step for setting a flag indicating rewrite prohibition for the adjustment value changed by the processing of the adjustment value changing step, and being multiplexed with the broadcast signal. An acquisition step for acquiring update data for updating the transmitted adjustment value, and the flag is set for the adjustment value to be updated by the update data acquired by the processing of the acquisition step. A flag determination step for determining whether or not the flag is determined, and when the flag determination step determines that the flag is not set Using the update data, and an adjustment value update step of updating the adjustment value as a target of the update.

  In one aspect of the present invention, an adjustment value set for adjusting a predetermined output output from the output unit is changed according to an operation of the operator, and rewriting is prohibited for the changed adjustment value. Is set. Also, update data for updating the adjustment value transmitted multiplexed with the broadcast signal is acquired, and the flag is set for the adjustment value to be updated by the acquired update data. It is determined whether or not. And when it determines with the said flag not being set, the adjustment value made into the said update object is updated using the said update data.

  According to one aspect of the present invention, for adjustment of image quality, sound quality, and the like, adjustment by batch download using a broadcast signal and individual adjustment by a service person can be used in combination. As a result, it is possible to flexibly respond to fine adjustment requests for image quality and sound quality from each customer.

  Embodiments of the present invention will be described below. Correspondences between constituent elements of the present invention and the embodiments described in the specification or the drawings are exemplified as follows. This description is intended to confirm that the embodiments supporting the present invention are described in the specification or the drawings. Therefore, even if there is an embodiment which is described in the specification or the drawings but is not described here as an embodiment corresponding to the constituent elements of the present invention, that is not the case. It does not mean that the form does not correspond to the constituent requirements. Conversely, even if an embodiment is described here as corresponding to a configuration requirement, that means that the embodiment does not correspond to a configuration requirement other than the configuration requirement. It's not something to do.

  The receiving device according to one aspect of the present invention is a receiving device (for example, the receiving device 1 in FIG. 1) that receives a broadcast signal, and outputs means (for example, the display 13 or the speaker 14 in FIG. 1) according to the operation of the operator. 3) adjustment value changing means (for example, the adjustment value changing section 51 in FIG. 3) for changing the adjustment value set to adjust the predetermined output output from the control unit, and the adjustment value changing means. Flag setting means (for example, flag setting unit 52 in FIG. 3) that sets a flag indicating that rewriting is prohibited for the adjustment value, and update for updating the adjustment value that is multiplexed and transmitted to the broadcast signal The flag is set for an acquisition unit (for example, the update data acquisition unit 82 in FIG. 6) that acquires data and an adjustment value that is updated by the update data acquired by the acquisition unit. Flag determining means (for example, flag determining unit 86 in FIG. 6) for determining whether or not the flag is set by the flag determining means, and using the update data, Adjustment value update means (for example, the adjustment value update unit 85 in FIG. 6) for updating the target adjustment value is provided.

  The output means (for example, the display 13 in FIG. 1) outputs a video and adjusts data corresponding to the video output from the output means based on the adjustment value (for example, in FIG. 1). A video signal adjusting unit 46) may be further provided.

  The output means (for example, the speaker 14 in FIG. 1) outputs a sound and adjusts data corresponding to the sound output from the output means based on the adjustment value (for example, in FIG. 1). An audio signal adjusting unit 47) can be further provided.

  A receiving method or program according to one aspect of the present invention is set to adjust a predetermined output output from an output unit in accordance with an operation of an operator in a receiving method or program of a receiving apparatus that receives a broadcast signal. An adjustment value changing step (for example, step S22 in FIG. 7) for changing the adjustment value being set, and a flag setting step for setting a flag indicating rewrite prohibition for the adjustment value changed by the processing of the adjustment value changing step (For example, step S23 in FIG. 7), an acquisition step for acquiring update data for updating the adjustment value multiplexed and transmitted to the broadcast signal (for example, step S72 in FIG. 9), It is determined whether or not the flag is set for the adjustment value to be updated by the update data acquired by the acquisition step. When the flag determination step (for example, step S76 in FIG. 9) to be performed and the flag determination step determines that the flag is not set, the update value is used as the adjustment value to be updated. Adjustment value update step (for example, step S77 in FIG. 9).

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a configuration example of a receiving apparatus to which the present invention is applied.

  The receiving device 1 receives and selects a broadcast signal from a terrestrial digital television broadcasting (hereinafter also referred to as digital broadcasting) device (not shown) through an antenna 12 under the control of the control block 11. The video is output from the display 13 and the sound is output from the speaker 14.

  In addition, the broadcast signal from the digital broadcasting device includes, for each model to be updated, update data for the terrestrial digital broadcast software of the receiving device, adjustment values for adjusting the image quality and sound quality set in the receiving device, etc. Update data, or a download notification information table (SDTT: Software Download Trigger Table) to notify the receiving device owned by the user that the update data will be downloaded as necessary Multiplexed.

  In other words, broadcast signals from a digital broadcasting device are used when it is necessary to perform function expansion or bug correction of software for terrestrial digital broadcasting on all customer receiving devices in a predetermined model. Software update data is multiplexed, and when it is necessary to change the adjustment values of each part of the receiving device of all customers in a given model, the adjustment value update data for doing so is multiplexed Is done. Note that both software update data and adjustment value update data may be multiplexed into a broadcast signal.

  1 includes a CPU (Central Processing Unit) 21, an internal bus 22, a program ROM (Read Only Memory) 23, a working RAM (Random Access Memory) 24, an adjustment value memory 25, and an I / O (Input / Output) 26 and the like.

  A program ROM 23, work RAM 24, adjustment value memory 25, I / O 26, adjustment input unit 32, and operation input unit 33 are connected to the CPU 21 via an internal bus 22. The CPU 21 is a program stored in the program ROM 23, a program loaded in the working RAM 24, or each part of the receiving device 1 connected to the bus 31 in accordance with a user instruction signal obtained via the operation input unit 33. Are controlled via the I / O 26 to execute various processes.

  The program ROM 23 is composed of a flash ROM, an EEP-ROM (Electrically Erasable and Programmable ROM), etc., and can be rewritten, and stores the program and the SDTT received by the receiving device 1. The work RAM 24 also appropriately stores data necessary for the CPU 21 to execute various processes, software and adjustment value update data, and the like.

  The adjustment value memory 25 includes a non-rewritable area 25a (hatched portion) configured by a mask ROM and the like, and a rewritable area 25b configured by a flash ROM, an EEP-ROM, and the like. Various adjustment values (for example, adjustment values such as image quality and sound quality) are stored.

  In the non-rewritable area 25a of the adjustment value memory 25, adjustment values that are not likely to be rewritten after shipment are stored. The rewritable area 25b of the adjustment value memory 25 stores an adjustment value that may be rewritten after shipment by operating the adjustment input unit 32 by a serviceman of the receiving device 1 or by update data multiplexed with a broadcast signal. The

  In this way, intentional separation of the adjustment value storage location using a mask ROM, a flash ROM, or the like reduces data corruption due to carelessness and accidents. In order to reduce the manufacturing cost, the non-rewritable area 25a can also be configured in the same flash ROM or EEP-ROM as the rewritable area 25b.

  The I / O 26 inputs and outputs data and control signals to the control block 11. In the following description, explanation of the I / O 26 and the bus 31 is omitted as appropriate in the exchange of data between the CPU 21 and each unit.

  The adjustment input unit 32 is configured with a service console keyboard, mouse, and the like, and is appropriately connected to the reception device 1 when a service person of the reception device 1 changes various adjustment values of each unit of the reception device 1. A signal corresponding to the operation of the service person is output to the CPU 21. The operation input unit 33 includes an input button, a dial, or a remote controller including them and a light receiving unit thereof, and outputs a user instruction signal to the CPU 21.

  The control block 11 includes a network interface (I / F) 34, a drive 35, a front end unit 41, a descrambler 42, a demultiplexer 43, an MPEG (Moving Picture Experts Group) decoder 44, an OSD (On A screen display generation unit 45, a video signal adjustment unit 46, and an audio signal adjustment unit 47 are connected, and execute predetermined processing in accordance with the control of the CPU 21.

  The network interface 34 is configured by a modem, an IEEE802.3 interface, and the like, establishes a data link with a server connected to a network (not shown), and performs FTP (File Transfer Protocol) or HTTP (Hyper Text Transport) as necessary. Communicate predetermined data using a data transfer protocol such as Protocol

  A removable medium 36 composed of a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is appropriately attached to the drive 35. The drive 35 is used when data is read from or written to the removable medium 36. The computer program read from the removable medium 36 is stored in the program ROM 23 or the like and installed as necessary.

  The front end unit 41 extracts a broadcast signal corresponding to the user's channel selection from the broadcast signal received via the antenna 12, demodulates it, generates a transport stream (TS), and generates a descrambler. Output to 42. The descrambler 42 appropriately scrambles the transport stream input from the front end unit 41 and outputs the descrambler 43 to the demultiplexer 43.

  The demultiplexer 43 separates the multiplexed transport stream into a stream such as video or audio data or section data. The demultiplexer 43 outputs video data and audio data to the MPEG decoder 44 and outputs only necessary section data to the CPU 21. That is, in the demultiplexer 43, a software or hardware filter can be applied, and only necessary section data is output to the CPU 21 by specifying parameters for the filter.

  The section data includes a DSM-CC section (for example, a data carousel), SDTT (download notification information table), EPG (Electronic Program Guide) information, and the like used for data broadcasting and data download.

  For example, a table identifier for identifying the SDTT, a manufacturer identifier for identifying the manufacturer of the receiving apparatus, a model identifier for identifying the model of the receiving apparatus, and the like are arranged near the head of the SDTT. Therefore, if the table identifier and the manufacturer identifier and model identifier corresponding to the receiving device 1 are specified as parameters, the demultiplexer 43 simply looks at the head portion of the SDTT, and the receiving device 1 corresponds to the manufacturer identifier and Only the model identifier SDTT can be selected and output to the CPU 21.

  The CPU 21 develops each piece of section data from the demultiplexer 43 in the work RAM 24. Of the section data developed in the work RAM 24, the data to be held is converted in format by the CPU 21 and held in the program ROM 23 and the adjustment value memory 25.

  The MPEG decoder 44 decodes the video data from the demultiplexer 43 and outputs it to the video signal adjustment unit 46, and also decodes the audio data from the demultiplexer 43 and outputs it to the audio signal adjustment unit 47.

  The OSD generation unit 45 generates an OSD image such as a menu screen under the control of the CPU 21 and supplies the generated image data to the video signal adjustment unit 46.

  The video signal adjustment unit 46 receives image data of data broadcast from the CPU 21, image data generated by the OSD generation unit 45, or video data from an external video camera or video recorder (not shown). . The video signal adjustment unit 46 adds (superimposes) data broadcast image data, generated image data, and other video data to the video data from the MPEG decoder 44, and stores the adjustment in the adjustment value memory 25. The image quality of the video data is adjusted based on the value. Then, the video signal adjustment unit 46 converts the adjusted video data into an NTSC format signal, and displays the video on the display 13.

  The audio signal adjustment unit 47 receives audio data of data broadcasting from the CPU 21 or audio data from an external video camera or video recorder (not shown). The audio signal adjustment unit 47 adjusts the sound quality and volume of the audio data from the MPEG decoder 44, the data broadcast audio data, and other audio data based on the adjustment value stored in the adjustment value memory 25. Then, the audio signal adjustment unit 47 causes the speaker 14 to output audio corresponding to the adjusted audio data.

  Here, the operation of the receiving apparatus 1 will be described with reference to the flowchart of FIG.

  The front end unit 41 receives a broadcast signal via the antenna 12 in step S1, extracts a broadcast signal corresponding to the user's channel selection from the received broadcast signal in step S2, demodulates it, and transports it. A stream is generated and output to the descrambler 42. The descrambler 42 appropriately scrambles the transport stream input from the front end unit 41 and outputs the descrambler 43 to the demultiplexer 43.

  In step S3, the demultiplexer 43 separates the multiplexed transport stream from the descrambler 42 into a stream such as video or audio data or section data, and outputs the video data and audio data to the MPEG decoder 44. . At this time, the demultiplexer 43 outputs only necessary section data to the CPU 21.

  In step S <b> 4, the MPEG decoder 44 decodes the video data from the demultiplexer 43, outputs it to the video signal adjustment unit 46, decodes the audio data from the demultiplexer 43, and outputs it to the audio signal adjustment unit 47.

  In step S5, the video signal adjustment unit 46 adds (superimposes) data broadcast image data, generated image data, and other video data to the video data from the MPEG decoder 44 as necessary. Based on the adjustment value stored in the value memory 25, the image quality of the video data is adjusted.

  In step S5, the audio signal adjusting unit 47 adjusts the sound quality and volume of the audio data from the MPEG decoder 44, the audio data of the data broadcast, other audio data, etc. stored in the adjustment value memory 25. Adjust based on.

  In step S6, the video signal adjustment unit 46 converts the adjusted video data into an NTSC format signal, and displays the video on the display 13. The audio signal adjustment unit 47 causes the speaker 14 to output audio corresponding to the adjusted audio data.

  As a result, the video of the predetermined service is displayed on the display 13 of the receiving device 1, and the audio of the predetermined service is output from the speaker 14.

  FIG. 3 shows an example of a functional configuration of the receiving device 1 that changes various adjustment values of each unit of the receiving device 1 based on an operation by a service person. The function block shown in FIG. 6 is, for example, when a serviceman connects a service console to the receiving device 1 and causes the receiving device 1 to set the service mode for the serviceman to set adjustment values. For example, this is realized by executing a predetermined control program by the CPU 21 of FIG.

  The setting of the service mode of the receiving device 1 can also be performed by transmitting a specific command using, for example, the operation input unit 33 without using the dedicated console (adjustment input unit 32). That is, when the service person operates the operation input unit 33 and sends a specific command, the receiving device 1 is set to a service mode for setting an adjustment value. Therefore, if the user also knows a specific command, the receiving apparatus 1 can be put into the service mode, and the adjustment value can be changed.

  The functional block shown in FIG. 3 includes an adjustment value changing unit 51, a flag setting unit 52, and the adjustment value memory 25 shown in FIG.

  The adjustment value changing unit 51 corresponds to the adjustment value stored in the rewritable area 25b of the adjustment value memory 25 in accordance with the operation of the adjustment input unit 32 by the service person (for example, the image quality referred to by the video signal adjusting unit 46). The adjustment value and the adjustment value related to the sound quality referred to by the audio signal adjustment unit 47 are changed.

  When the adjustment value stored in the rewritable area 25b of the adjustment value memory 25 is changed, the flag setting unit 52 sets a rewrite prohibition flag indicating rewrite prohibition for the changed adjustment value. That is, a rewrite prohibition flag is provided for each adjustment value stored in the rewritable area 25b of the adjustment value memory 25, and the flag setting unit 52 rewrites the changed adjustment value. The value of the prohibition flag is set to 1 (meaning that the flag is set, that is, the flag is on).

  The value of the rewrite prohibition flag is changed to 1 or 0 (meaning that the flag is not set, that is, the flag is off) according to the operation of the adjustment input unit 32 by the service person. You may make it do.

  FIG. 4 is a diagram showing a detailed configuration example of the adjustment value memory of FIG.

  As described above with reference to FIG. 1, the adjustment value memory 25 includes the non-rewritable area 25a (hatched portion) and the rewritable area 25b. Each square shown in the non-rewritable area 25a and the rewritable area 25b represents each adjustment value area in which each adjustment value is stored.

  In the adjustment value memory 25, as shown in FIG. 4, the image quality adjustment value related to the image quality adjusted by the video signal adjustment unit 46, the sound quality adjustment value related to the sound quality adjusted by the audio signal adjustment unit 47, or the image quality and sound quality. Other adjustment values related to the other receiving devices 1 are stored.

  The image quality adjustment values that may be rewritten, that is, the image quality adjustment values stored in the rewritable area 25b include, for example, adjustment values such as brightness and saturation of the image output to the display 13, adjustment values such as image sharpness, and the like. is there. The sound quality adjustment value stored in the rewritable area 25b is, for example, an adjustment value such as a heavy bass or treble sound output from the speaker 14, an adjustment value such as a left / right balance in the sound quality, There is a volume curve that is an adjustment value for adjusting the volume.

  Other adjustment values stored in the rewritable area 25b include, for example, timing when video and audio are output when the user turns on the power (output delay timing), and a receiving device for earthquake countermeasures If the inclination of the installation location of 1 is equal to or greater than a reference value, an adjustment value such as a reference value used for comparison with a value detected by an inclination sensor that detects the inclination in the function of turning off the power of the receiving apparatus 1 is there.

  The non-rewritable area 25a has no possibility of being rewritten after shipment among the image quality adjustment value, the sound quality adjustment value, and other adjustment values. Each adjustment value area for common adjustment values is configured.

  In the rewritable area 25b, among the image quality adjustment value, the sound quality adjustment value, and other adjustment values, there is a possibility of rewriting after shipment, and common adjustment values that are common adjustment values for all the receiving apparatuses 1 are stored. Each adjustment value area for common adjustment values and a specific adjustment value for individual user correspondence, which is often changed depending on the installation location such as a hotel, home, lobby, etc., are stored. Each adjustment value area for a specific adjustment value.

  For example, in order to prevent the image output on the display 13 from being displayed so brightly at home, or to prevent the sound from leaking next to a guest room in a hotel. There are many cases where adjustment is required so that the sound cannot be output too much.

  Therefore, in each adjustment value area for the unique adjustment value, an adjustment value that is often adjusted during individual correspondence is stored. Specifically, among the image quality adjustment values, adjustment values such as brightness and saturation of the video output to the display 13 are stored, and for example, the sound volume is adjusted among the sound quality adjustment values. For example, a volume curve that is an adjustment value is stored.

  Further, if the value is 1 for each adjustment value (both common adjustment value and unique adjustment value) stored in each adjustment value area of the rewritable area 25b, rewrite prohibition is indicated, and if the value is 0, A rewrite prohibition flag indicating rewriteability is provided. In practice, a flag area is provided for each adjustment value area, and the value of the rewrite prohibition flag is set by writing 1 or 0 in the flag area.

  The value of this rewrite prohibition flag is set to 0 at the time of shipment. Therefore, in order to update the common adjustment values for all the receiving devices 1 at once by the manufacturer of the receiving device 1 or the like, or to update the unique adjustment values corresponding to individual users at once, the update data of the adjustment values Is multiplexed with the broadcast signal and transmitted, all the adjustment values stored in the rewritable area 25b whose update data is to be updated are rewritten.

  However, for example, when the receiving apparatus 1 is installed in a guest room of a hotel or the like, an adjustment so that the hotel employee cannot output the voice so much in order to prevent the voice from being leaked next to the hotel employee. May be requested from service personnel. In order to respond to this demand, the service person decreases the maximum volume in the volume curve of the receiving device 1, turns off the heavy bass, and sets the adjustment value individually.

  Further, for example, a user who enjoys watching a movie and is particular about sound may call a service man and request the service man to adjust the sound quality suitable for watching a movie. In order to respond to this demand, the service person individually sets the adjustment value so that the sound quality of the receiving device 1 becomes a sound quality suitable for movie viewing.

  As described above, in the receiving device 1, the adjustment value stored in the rewritable area 25 b of the adjustment value memory 25 is changed according to the operation of the adjustment input unit 32 by the service person corresponding to the user's request. There is.

  In such a case, if the adjustment value is changed based on the update data multiplexed and transmitted in the broadcast signal in the receiving device 1, the adjustment value changed by the serviceman over time is required. Since it will be erased, it will be necessary to call the service person again and make adjustments.

  Therefore, when the adjustment value stored in the rewritable area 25b by the service person is changed, the reception device 1 sets the value of the rewrite prohibition flag provided for the changed adjustment value to 1, and the broadcast signal When the adjustment value is updated with the update data multiplexed in the above, the value of the rewrite prohibition flag is referred to and the adjustment value is updated only when it is not set to 1.

  As a result, even if the update data multiplexed and transmitted on the broadcast signal has the adjustment value changed by the service person as the update target, the value of the rewrite prohibition flag is set to 1 in the receiving device 1. Therefore, the adjustment value changed by the service person is held as it is.

  Therefore, the user can save the trouble of arranging a service person again.

  In the example of FIG. 4, the rewrite prohibition flag is provided for each adjustment value element. However, adjustment values having several similar elements (for example, adjustments related to sound quality such as deep bass, bass, treble, etc.) A single flag may be provided collectively for each value.

  Further, the adjustment value stored in each adjustment value area for the unique adjustment value described in the example of FIG. 4 can be stored in each adjustment value area for the common adjustment value. Further, the rewritable area 25b is configured to be divided into each adjustment value area for common adjustment values and each adjustment value area for unique adjustment values. It is also possible to configure without adjusting the adjustment value.

  Next, with reference to FIG. 5, an adjustment value that is an adjustment target of a serviceman of the reception device 1 and update data multiplexed on a broadcast signal will be described.

  In the example of FIG. 5, the OSD screen 61 displayed on the display 13 when the user adjusts the heavy bass is shown.

  For example, when the OSD screen 61 for adjusting the deep bass is displayed on the display 13 by the receiving device 1 in accordance with the operation of the operation input unit 33 by the user, the OSD screen 61 is used for allowing the user to adjust the deep bass. A heavy bass off button 61a, a heavy bass low button 61b, and a heavy bass high button 61c are displayed.

  Corresponding to this, the user operates the operation input unit 33 and the like, and selects and instructs one of the desired level among the heavy bass off button 61a, the heavy bass low button 61b, and the heavy bass high button 61c. The user's selection instruction is input to the CPU 21 via the operation input unit 33, and the CPU 21 sets the degree of deep bass in the sound quality to the user's preference.

  However, the user can adjust the deep bass only in three stages, that is, off, low, or high, and the adjustment value memory 25 in the receiving apparatus 1 can actually be rewritten. In the area 25b, specific adjustment values corresponding to the heavy bass off button 61a, the heavy bass low button 61b, and the heavy bass high button 61c are stored.

  For example, the heavy bass off adjustment value corresponding to the heavy bass off button 61a is stored as “0” in the adjustment value area 71a in the rewritable area 25b. The small bass low adjustment value corresponding to the heavy bass low button 61b is stored as “10” in the adjustment value area 71b in the rewritable area 25b. The large adjustment value of the heavy bass corresponding to the heavy bass high button 61c is stored as “20” in the adjustment value area 71c in the rewritable area 25b.

  The rewritable area 25b includes rewrite prohibition flags 72a to 72c for the adjustment values in the adjustment value areas 71a to 71c, and the respective values are set to zero.

  Here, for example, the serviceman operates the adjustment input unit 32 in response to a user's desire to make the deep bass more effective. In accordance with the operation of the adjustment input unit 32 by the service person, the large adjustment value of the heavy bass stored in the adjustment value area 71c is changed to, for example, “25” as indicated by the arrow.

  Thereby, in the receiving apparatus 1, in response to the user selecting the heavy bass high button 61c, the heavy bass that could only be set to a size of “20” before adjustment by the serviceman. The adjustment value can be set to a large value up to “25” when the user selects the heavy bass high button 61c.

  Further, when the large adjustment value of the heavy bass stored in the adjustment value area 71c is changed to “25”, the value of the rewrite prohibition flag 72c for the large adjustment value of the heavy bass is set to 1.

  As a result, even if the update data multiplexed and transmitted on the broadcast signal has the adjustment value as the update target, the update is prohibited and invalidated. Thus, it is possible to prevent the adjustment value set in the above from being overwritten and the trouble of re-setting again.

  FIG. 6 shows a functional configuration example of the receiving apparatus 1 that updates software and adjustment values based on SDTT. The functional blocks shown in FIG. 6 are realized by executing a predetermined control program by the CPU 21 of FIG.

  The functional blocks shown in FIG. 6 include an announcement information acquisition unit 81, an update data acquisition unit 82, a channel selection unit 83, a software update unit 84, an adjustment value update unit 85, a flag determination unit 86, and the program ROM 23 in FIG. A work RAM 24 and an adjustment value memory 25 are included.

  When the SDTT selected by the demultiplexer 43 among the section data from the demultiplexer 43 is input, the notification information acquisition unit 81 temporarily expands it in the work RAM 24. SDTT includes a notification for only software update data, only adjustment value update data, or download of software update data and adjustment value update data.

  The notification information acquisition unit 81 refers to the SDTT expanded in the work RAM 24, and in the case where the SDTT is for notifying only the software update data or downloading of the software update data and the adjustment value update data, With reference to the software version information in the ROM 23, it is determined whether or not the version of the update data described in the SDTT is a version necessary for the receiving apparatus 1.

  In the case of notification for downloading software update data and adjustment value update data, version information of update data stored in a predetermined area of the adjustment value memory 25b can also be referred to.

  In addition, the notification information acquisition unit 81 refers to the SDTT expanded in the work RAM 24 and, in the case of notification for downloading only the adjustment value update data, is stored in a predetermined area of the adjustment value memory 25b. With reference to the version information of the update data, it is determined whether or not the version of the update data described in the SDTT is a version necessary for the receiving apparatus 1. However, at this time, the SDTT can also be acquired without confirming the version of the adjustment value update data.

  If the version described in the SDTT is the same or smaller (older) than the software (or adjustment value) version of the receiving device 1, the notification information acquisition unit 81 determines that the version described in the SDTT is not a required version. The SDTT developed in the work RAM 24 is discarded. In addition, when the version described in the SDTT is greater (newer) than the version of the software (or adjustment value) of the receiving device 1, the notification information acquisition unit 81 determines that the version described in the SDTT is a required version. SDTT is held in the program ROM 23.

  When the SDTT is stored in the program ROM 23, the update data acquisition unit 82 analyzes the information described in the SDTT and prepares to download the update data. That is, the update data acquisition unit 82 analyzes the information described in the SDTT to confirm the download information such as the update data download start time and the download service (channel), and determines the update data download start time. To do. Then, the update data acquisition unit 82 performs a time counting operation with a built-in clock and waits until the update data download start time described in the SDTT is reached.

  When it is determined that the update data download start time has come, the update data acquisition unit 82 controls the channel selection unit 83, selects the service (channel) described in the SDTT, controls the demultiplexer 43, and selects the update data. From the broadcast signal of the service selected by the local section 83, the receiving device 1 acquires the necessary version of update data, and the acquired update data is temporarily stored in the work RAM 24.

  Under the control of the update data acquisition unit 82, the channel selection unit 83 selects a service (channel) described in the SDTT at the download start time of the update data described in the SDTT.

  The software update unit 84 monitors the work RAM 24, and the update data acquisition unit 82 stores the update data in the work RAM 24. If software update data is included in the update data, the software stored in the work RAM 24 The software of the receiving device 1 stored in the program ROM 23 is updated using the updated data.

  The adjustment value update unit 85 also monitors the work RAM 24, and the update data acquisition unit 82 stores the update data in the work RAM 24. If there is update data of the adjustment value in the update data acquisition unit 82, it is stored in the work RAM 24. The adjustment value stored in the rewritable area 25b of the adjustment value memory 25 is changed using the adjustment value update data.

  At this time, the adjustment value update unit 85 controls the flag determination unit 86 to determine whether or not the value of the rewrite prohibition flag for the adjustment value to be updated is 1, and according to the determination result, Update the adjustment value.

  That is, the adjustment value update unit 85 uses the adjustment value update data only when the flag determination unit 86 determines that the value of the rewrite prohibition flag for the adjustment value to be updated is not 1. The adjustment value stored in the rewritable area 25b is updated.

  On the other hand, when the flag determination unit 86 determines that the rewrite prohibition flag for the adjustment value to be updated is 1, the adjustment value update unit 85 stores the adjustment value stored in the rewritable area 25b of the adjustment value memory 25. Prohibit updates.

  The flag determination unit 86 refers to the rewritable area 25b of the adjustment value memory 25 under the control of the adjustment value update unit 85, and determines whether or not the value of the rewrite prohibition flag for the adjustment value to be updated is 1. judge.

  Next, the adjustment value changing process of the receiving device 1 will be described with reference to the flowchart of FIG.

  For example, for a receiving device 1 installed in a guest room of a hotel, a hotel employee calls a service person of the receiving device 1 in order to set the volume table so that the volume is not louder than usual. The serviceman connects the service console to the receiving device 1 and causes the receiving device 1 to set the service mode for the serviceman to set the adjustment value. Thereby, a predetermined control program is executed by the CPU 21 of FIG. 5, and the functional blocks shown in FIG. 6 are configured.

  The service person operates the keyboard and mouse of the service console constituting the adjustment input unit 32, and inputs an adjustment value for setting the volume table so that the volume does not become louder than usual.

  The adjustment input unit 32 inputs an adjustment value according to the operation by the service person to the adjustment value changing unit 51. The adjustment value changing unit 51 stands by in step S21 until an adjustment value is input. If it is determined that the adjustment value is input from the adjustment input unit 32, the rewritable area 25b is input in step S22. The adjustment value stored in the adjustment value area corresponding to the adjustment value (that is, the sound quality adjustment value in this case) is changed.

  The flag setting unit 52 monitors the rewritable area 25b of the adjustment value memory 25. When the adjustment value stored in the adjustment value area of the rewritable area 25b is changed, the changed adjustment is performed in step S23. The value of the rewrite prohibition flag for the value is set to 1.

  When the service person finishes setting the adjustment value, he / she operates the keyboard and mouse of the service console and inputs the end of the work. The adjustment input unit 32 inputs a signal corresponding to the operation by the service person to the adjustment value changing unit 51.

  In step S24, the adjustment value changing unit 51 determines whether or not the adjustment value has been changed in accordance with the signal from the adjustment input unit 32. If it is determined in step S24 that the adjustment value has not yet been changed, the process returns to step S21, and the subsequent processes are repeated.

  If it is determined in step S24 that the adjustment value has been changed, the adjustment value changing process in FIG. 7 is ended.

  As described above, when the adjustment value stored in the adjustment value area of the rewritable area 25b is changed, the value of the rewrite prohibition flag for the changed adjustment value is set to 1 (that is, rewrite prohibition). The

  In the description of FIG. 7, the example in which the value of the rewrite prohibition flag is set to 1 according to the change of the adjustment value has been described. However, the value of the rewrite prohibition flag is set to 1 based on the operation of the service person. You can also

  Next, with reference to the flowchart of FIG. 8, processing in which the receiving device 1 acquires SDTT and updates software or an adjustment value based on the acquired SDTT will be described.

  When the manufacturer of the receiving device 1 needs to perform functional enhancement or bug correction of software for terrestrial digital broadcasting on the receiving device 1 (model) of all customers, the update data of the software for performing them In addition, when it is necessary to change the adjustment value of each predetermined part in the receiving device 1 (model) of all customers, update data of the adjustment value for performing these is generated and updated. Generate SDTT corresponding to the data. At this time, data (manufacturer identifier, model identifier, etc.) to be described in the manufacturer is described in the SDTT.

  Then, the generated update data and the corresponding SDTT are transmitted (submitted) to a download device (not shown). A download device multiplexes update data and SDTT into a broadcast signal to perform download, and collects and schedules update data submitted by a plurality of manufacturers that manufacture various receiving devices.

  Then, before sending the update data as download data (data carousel), the download device sends necessary information based on the update data to the SDTT submitted by each manufacturer (for example, to the reception device 1 in advance of the software). As the information to notify that update data will be downloaded, download data such as download time of update data and download information such as the service (channel) to be downloaded are completed, and the completed SDTT is converted to a digital broadcasting device (not shown). Via the broadcast signal.

  The front end unit 41 of the receiving apparatus 1 extracts a broadcast signal corresponding to the user's channel selection from the broadcast signal received via the antenna 12, demodulates it, generates a transport stream, and sends it to the descrambler 42. Output. The descrambler 42 appropriately scrambles the transport stream input from the front end unit 41 and outputs the descrambler 43 to the demultiplexer 43.

  The demultiplexer 43 separates the multiplexed transport stream into a stream such as video or audio data or section data. In step S41, the demultiplexer 43 performs a filtering process on the separated section data using the table identifier, manufacturer identifier, and model identifier as parameters, and identifies the SDTT. Then, in step S42, the demultiplexer 43 It is determined whether the manufacturer identifier and model identifier described in the above match the manufacturer identifier and model identifier corresponding to the receiving device 1.

  When it is determined in step S42 that the manufacturer identifier and model identifier described in the SDTT match the manufacturer identifier and model identifier corresponding to the reception device 1, the demultiplexer 43 acquires the SDTT from the notification information of the CPU 21. To the unit 81.

  In step S43, the notification information acquisition unit 81 acquires the SDTT from the demultiplexer 43, and temporarily expands the acquired SDTT in the work RAM 24.

  In step S44, the notification information acquisition unit 81 determines whether the version of the update data described in the SDTT is a version necessary for the receiving device 1.

  That is, the notification information acquisition unit 81 refers to the SDTT expanded in the work RAM 24, and the SDTT is for notifying only the software update data or the download of the software update data and the adjustment value update data. Then, with reference to the software version information of the program ROM 23, it is determined whether or not the version of the update data described in the SDTT is a version necessary for the receiving apparatus 1.

  Alternatively, the notification information acquisition unit 81 refers to the SDTT developed in the work RAM 24 and, in the case of notification for downloading only the adjustment value update data, is stored in a predetermined area of the adjustment value memory 25b. With reference to the version information of the update data, it is determined whether or not the version of the update data described in the SDTT is a version necessary for the receiving apparatus 1.

  When the version described in the SDTT is larger (newer) than the version of the software (or adjustment value) of the receiving device 1, the notification information acquisition unit 81 determines that the version described in the SDTT is a required version in step S44. The SDTT determined and expanded in the work RAM 24 is held in the program ROM 23.

  On the other hand, if it is determined in step S44 that the version described in the SDTT is not a required version, the SDTT expanded in the work RAM 24 is discarded by the notification information acquisition unit 81, and the process returns to step S41. Next, processing for the section data to be broadcast is executed.

  When the SDTT is held in the program ROM 23, the update data acquisition unit 82 analyzes the information described in the SDTT in step S45, and prepares to download the update data in step S46.

  That is, the update data acquisition unit 82 analyzes the information described in the SDTT to confirm the download information such as the update data download start time and the download service (channel), and determines the update data download start time. To do. Then, the update data acquisition unit 82 performs a time counting operation with a built-in clock and waits until the update data download start time described in the SDTT is reached.

  On the other hand, the download device multiplexes the SDTT with the broadcast signal and broadcasts it, and then, at the download time of the update data, the update data is downloaded as the download data (data carousel) and multiplexed with the broadcast signal via the digital broadcast device. Come on. Note that this content may be encrypted, or error detection, error correction code, or the like may be added to prevent transmission errors.

  Therefore, when it is determined that the update data download start time has come, the update data acquisition unit 82 executes an update data acquisition update process in step S47. This update data acquisition / update process will be described with reference to the flowchart of FIG.

  In step S71, the update data acquisition unit 82 controls the channel selection unit 83 to select a download service (channel) described in the SDTT. In step S72, the update data acquisition unit 82 controls the demultiplexer 43 and selects the channel selection unit 83. The receiving device 1 acquires the necessary version of update data from the broadcast signal of the service that has been provided, and the acquired update data is temporarily stored in the work RAM 24.

  That is, since the front end unit 41 receives the broadcast signal from the digital broadcasting device via the antenna 12, the channel selection unit 254 controls the front end unit 41 and describes the download notification information from the received broadcast signal. Select the service (channel) being used. The front end unit 41 extracts a broadcast signal corresponding to the channel selection of the channel selection unit 254 from the broadcast signal received via the antenna 12, demodulates it, generates a transport stream, and outputs it to the descrambler 42. . The descrambler 42 appropriately scrambles the transport stream input from the front end unit 41 and outputs the descrambler 43 to the demultiplexer 43.

  The demultiplexer 43 separates the multiplexed transport stream into a stream such as video or audio data or section data, and the necessary DSM- from the separated section data under the control of the update data acquisition unit 82. The CC section is supplied to the update data acquisition unit 82 as update data.

  In step S <b> 72, the update data acquisition unit 82 acquires update data from the demultiplexer 43 and temporarily stores it in the work RAM 24.

  When the update data acquisition unit 82 stores the update data in the work RAM 24, the software update unit 84 determines whether or not the update data stored in the work RAM 24 includes software update data in step S73. If it is determined that the update data stored in the work RAM 24 includes software update data, the software update data stored in the work RAM 24 is used to store the update data in the program ROM 23 in step S74. The software of the receiving device 1 is updated.

  In step S73, when it is determined that there is no software update data in the update data stored in the work RAM 24, the process skips step S74 and proceeds to step S75.

  When the update data acquisition unit 82 stores the update data in the work RAM 24, the adjustment value update unit 85 determines whether or not the update data stored in the work RAM 24 includes the adjustment value update data in step S75. In step S76 to S79, adjustment value update processing is performed.

  That is, the adjustment value update unit 85 controls the flag determination unit 86 in step S76 to determine whether or not the value of the rewrite prohibition flag for the adjustment value to be updated is 1.

  If it is determined in step S76 that the value of the rewrite prohibition flag for the adjustment value to be updated is not 1, that is, it is determined that the flag indicating rewrite prohibition is not set, and the adjustment value update unit 85 performs step S77. In (5), the adjustment value stored in the corresponding adjustment value area in the rewritable area 25b is updated.

  If it is determined in step S76 that the value of the rewrite prohibition flag for the adjustment value to be updated is 1, that is, it is determined that a flag indicating rewrite prohibition is set, and the process proceeds to step S78. Updating of the adjustment value stored in the rewritable area 25b of the value memory 25 is prohibited.

  After the process of step S77 or S78, the process proceeds to step S79, and the adjustment value update unit 85 determines whether or not the process for all the adjustment values to be updated has been completed, If it is determined that the process for the adjustment value has been completed, the process is terminated.

  If it is determined in step S79 that the process for all the adjustment values to be updated has not been completed, the process returns to step S76, and the subsequent processes are repeated.

  On the other hand, if it is determined in step S75 that the update data stored in the work RAM 24 does not include the adjustment value update data, the adjustment value is not updated and the process ends.

  As described above, since the value of the rewrite prohibition flag for the adjustment value individually changed by the service person of the reception device 1 is set to 1, for example, the manufacturer of the reception device 1 adjusts all the reception devices 1. When the values are to be updated in a batch, the adjustment values that have not been individually changed are updated in a batch, and the adjustment values individually changed by the service person are prohibited from being updated.

  Therefore, the adjustment value of each part of the receiving device 1 can be performed together with the software download, and at the same time, individual correspondence by the service person can also be performed.

  As a result, for example, adjustment values that may have occurred in the past may be updated together with software downloads, so that adjustment values adjusted by the service person according to the user's request may be overwritten, and conversely In the software download, by limiting the adjustment values to be updated, it is possible to suppress the fact that the adjustment values cannot be updated collectively and the advantages of downloading cannot be utilized.

  In other words, even if adjustment values are updated in batches by software download, adjustment values changed by service personnel are not changed, so adjustment values can be updated in batches by software download without restricting the adjustment values to be updated. Can be done.

  As described above, a flexible adjustment service can be provided to each of various customers such as a user who requests adjustment by a service person and a user who sends a request to a manufacturer.

  In the above description, the update data is multiplexed with the broadcast signal and acquired from the broadcast signal. However, the update data may be acquired from the server via a network (not shown).

  Further, in the above description, the receiver 1 having the display 13 built in has been described. However, a receiver connected to an external television device may be used, or a set top box or the like may be configured. May be. In the above description, the receiver 1 of the fixed receiver has been described. However, the present invention can also be applied to mobile receivers and portable receivers such as PDAs (Personal Digital assistants) and mobile phones.

  The series of processes described above can be executed by hardware, but can also be executed by software. When a series of processing is executed by software, a program constituting the software may execute various functions by installing a computer incorporated in dedicated hardware or various programs. For example, it is installed from a program storage medium in a general-purpose personal computer or the like.

  As shown in FIG. 1, a program storage medium that stores a program that is installed in a computer and can be executed by the computer is a magnetic disk (including a flexible disk), an optical disk (CD-ROM (Compact Disc-Read). Removable media (package media) 36 consisting of only memory (including only memory), DVD (digital versatile disc), magneto-optical disc (including MD (mini-disc) (trademark)), or semiconductor memory, or programs temporarily The program ROM 23 is stored in a permanent or permanent manner.

  In the present specification, the steps shown in the flowcharts include not only processes performed in time series according to the described order, but also processes executed in parallel or individually even if not necessarily performed in time series. Is included.

It is a block diagram which shows the structural example of the receiver of this invention. 3 is a flowchart for explaining the operation of the receiving apparatus in FIG. 1. FIG. 2 is a block diagram illustrating a functional configuration example of the receiving device in FIG. 1. It is a figure which shows the structural example of the adjustment value memory of FIG. It is a figure explaining the adjustment value in the receiver of FIG. It is a block diagram which shows the other function structural example of the receiver of FIG. 6 is a flowchart for explaining adjustment value change processing of the receiving apparatus in FIG. 1. 3 is a flowchart for describing processing for acquiring SDTT and updating software and adjustment values by the receiving apparatus of FIG. 1. It is a flowchart explaining the update data acquisition update process of step S47 of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Receiver, 11 Control block, 13 Display, 14 Speaker, 21 CPU, 23 Program ROM, 24 Work RAM, 25 Adjustment value memory, 25a Non-rewritable area, 25b Rewritable area, 32 Adjustment input part, 33 Operation input Unit, 46 video signal adjustment unit, 47 audio signal adjustment unit, 51 adjustment value change unit, 52 flag setting unit, 81 notification information acquisition unit, 82 update data acquisition unit, 83 channel selection unit, 84 software update unit, 85 adjustment value update Part, 86 flag judgment part

Claims (6)

In a receiving device that receives a broadcast signal,
An adjustment value changing means for changing an adjustment value set for adjusting a predetermined output output from the output means in accordance with an operation of the operator;
Flag setting means for setting a flag indicating prohibition of rewriting with respect to the adjustment value changed by the adjustment value changing means;
Acquisition means for acquiring update data for updating the adjustment value multiplexed and transmitted to the broadcast signal;
Flag determination means for determining whether or not the flag is set for the adjustment value to be updated by the update data acquired by the acquisition means;
A receiving device comprising: adjustment value updating means for updating an adjustment value to be updated using the update data when the flag determining means determines that the flag is not set. The receiving apparatus according to claim 1, wherein when the flag determination unit determines that a flag is set, the adjustment value update unit prohibits updating of the adjustment value to be updated. The output means outputs video;
The receiving apparatus according to claim 1, further comprising: a video adjusting unit that adjusts data corresponding to a video output from the output unit based on the adjustment value. The output means outputs sound;
The receiving apparatus according to claim 1, further comprising: an audio adjustment unit that adjusts data corresponding to the audio output from the output unit based on the adjustment value. In a receiving method of a receiving device that receives a broadcast signal,
An adjustment value changing step for changing an adjustment value set for adjusting a predetermined output output from the output means in accordance with an operation of the operator;
A flag setting step for setting a flag indicating rewrite prohibition with respect to the adjustment value changed by the process of the adjustment value changing step;
An acquisition step of acquiring update data for updating the adjustment value that is multiplexed and transmitted to the broadcast signal;
A flag determination step for determining whether or not the flag is set for the adjustment value to be updated by the update data acquired by the processing of the acquisition step;
An adjustment value update step of updating an adjustment value to be updated using the update data when it is determined by the flag determination step that the flag is not set. A program for causing a computer to perform processing for receiving a broadcast signal,
An adjustment value changing step for changing an adjustment value set to adjust a predetermined output output from the output means in accordance with an operation of the operator;
A flag setting step for setting a flag indicating rewrite prohibition with respect to the adjustment value changed by the process of the adjustment value changing step;
An acquisition step of acquiring update data for updating the adjustment value multiplexed and transmitted to the broadcast signal;
A flag determination step of determining whether or not the flag is set for the adjustment value to be updated by the update data acquired by the processing of the acquisition step;
An adjustment value update step of updating an adjustment value to be updated using the update data when it is determined by the flag determination step that the flag is not set.

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