JP2004023252A - Digital broadcasting receiving system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital broadcasting/receiving apparatus for providing a preset function having a high utility value for a user by achieving the efficient utilization of a preset memory. <P>SOLUTION: The digital broadcasting/receiving apparatus is composed so that a user can select either a first registration format for registering information for specifying a program and a frequency including the program with one program as a registration unit or a second registration format for registering information for specifying only the frequency with one frequency as a registration unit as specific preset information to be registered in a preset memory. When one frequency is registered in the preset memory as the registration unit, the amount of data required as one unit becomes smaller than when one program is set to be a registration unit, thus increasing the number of units to be registered. <P>COPYRIGHT: (C)2004,JPO

Description

【００２８】
一方、サービス・プリセットが選択されている場合に、図４の処理によって、プリセットメモリに登録される内容の一例を下記表２に示す。この場合、１つの単位（Ｃｈ）について登録されるデータは、周波数、アンサンブルＩＤ、アンサンブルラベル、サービスＩＤ、サブチャンネルＩＤとなる。
【００２９】
【表２】

【００３０】
表１と表２を比較することでも、アンサンブル・プリセットの場合にプリセットメモリに登録される１単位のデータ量は、サービス・プリセットの場合の１単位のデータ量よりも少なく、よって、アンサンブル・プリセットの場合の方がより大きな単位数となることが理解できる。つまり、放送受信装置５０では、アンサンブル・プリセットとするかサービス・プリセットとするかを選択可能であるとともに、選択に応じてプリセットメモリに登録する形式を変更し、プリセットメモリが効率的に使用されるようにしている。
【００３１】
操作部１１に設けられたプリセットキーを押下してプリセット内容を呼び出して選局を行う処理では、アンサンブル・プリセットとサービスプリセットでは以下のように異なる処理となる。すなわち、サービス・プリセットでは、例えば、プリセットキーの１つが押下されてＣｈ１（表２）が選局されると、プリセットメモリ（表２）からＣｈ１に関するデータ（周波数、アンサンブルＩＤ、サービスＩＤ、サブチャンネルＩＤ、アンサンブルラベル、サービスラベル）が全て読み出され、これらの情報に基づいて、選択された周波数の受信が行われ、そして選択された番組を再生するための処理が行われる。
【００３２】
一方、アンサンブル・プリセットでは、プリセットキーの１つが押下されてＣｈ１（表１）が選局されると、プリセットメモリ（表１）からＣｈ１に関するデータ（周波数、アンサンブルＩＤ、アンサンブルラベル）が読み出され、これらの情報に基づいて、選択された周波数の受信が行われる。次に、周波数内の各サービスについては、さらにマニュアルによるユーザー入力を促し、ユーザが所定の操作を行ってサービスを選択すると、マニュアルで選択されたサービスを再生するための処理が行われる。
【００３３】
なお、図１に示した放送受信装置の構成は、一つの例であり、本発明は、様々な種類のデジタル放送の受信装置にも適用することができる。また、図３、図４に示したフローチャートも、様々な変形を行うことができる。例えば、図３に示すフローチャートは、放送受信装置５０の電源を投入した場合だけでなく、ユーザーが所定の操作を行った場合に実行されるような構成であっても良い。
【００３４】
周波数を特定するための情報として、および、番組と該番組を含んでいる周波数とを特定する情報として例示した、アンサンブルＩＤ、サービスＩＤ等といった情報は一つの例に過ぎず、これらは、同等な様々な情報で置き換えることができる。
【００３５】
【発明の効果】
以上説明したように本発明によれば、プリセットメモリへの登録を、アンサンブル・プリセットの形式で行うか、サービス・プリセットの形式で行うかをユーザーが選択することが可能となる。アンサンブル・プリセットの形式で登録する場合は、１つの単位として必要なデータ量が、サービス・プリセットの形式で登録を行う場合よりも少なくなり、その結果、登録可能な単位数が増え、プリセットメモリを効率よく利用することが可能となる。
【図面の簡単な説明】
【図１】本発明の実施形態としてのＤＡＢの放送受信装置のブロック図である。
【図２】ＤＡＢのサービス階層を表す図である。
【図３】プリセットメモリへの登録形式の選択に関する処理を示すフローチャートである。
【図４】プリセットメモリへの登録処理を示すフローチャートである。
【符号の説明】
２　チューナ部
３　ＡＤコンバータ
４　デコーダ部
９　受信機制御部
１０　メモリ
１１　操作部
１２　表示部
５０　放送受信装置[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a digital broadcast receiving apparatus, and more particularly, to a preset function for pre-registering receivable programs in such a receiving apparatus.
[0002]
[Prior art]
At present, implementation and examination of digital broadcasting are underway. In such digital broadcasting, one frequency includes a plurality of programs. For example, in DAB (Digital Audio Broadcasting), which is one type of digital broadcasting, one broadcast wave (frequency) is called an ensemble, and each ensemble includes a plurality of programs (audio programs and data programs).
[0003]
The broadcast receiving device usually has a preset function for registering a program in the device in advance. In the case of analog broadcasting, a frequency is assigned to each program. In other words, the frequency itself is information for identifying a program. Was able to do. On the other hand, since digital broadcasting has a configuration in which a plurality of programs are included in each frequency, a digital broadcast receiving apparatus uses one program as a unit of registration, and stores information about the program and its contents as registration contents of one program. A method has been adopted in which information about a frequency including a program is registered in a preset memory (hereinafter, a preset memory).
[0004]
[Problems to be solved by the invention]
In this way, by registering a program in the preset memory, it is possible to provide a function that allows a user to select a program using, for example, a preset key. However, in the method of registering the information on the frequency and the information on the program for one program as described above, the digital broadcast including a plurality of programs in each frequency will compress the preset memory.
[0005]
On the other hand, in consideration of the fact that a single frequency includes a plurality of programs in one frequency, a method of pressing a preset key and selecting one program registered in advance by using a preset key as in the related art is used. In addition, users can use the method of selecting a receivable frequency from the frequency assigned to the preset key, and selecting each program included in it while checking the reproduced audio etc. Can be considered valuable.
[0006]
The present invention has been made in view of such circumstances. That is, an object of the present invention is to provide a digital broadcast receiving apparatus capable of providing a preset function having a high use value for a user while achieving efficient use of a preset memory.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, as the predetermined preset information to be registered in the preset memory, information specifying a program and a frequency including the program is registered using one program as a unit of registration or one frequency is registered. Is set as a unit of registration, and a digital broadcast receiving apparatus is configured so that the user can select whether to register information for specifying only the frequency (claim 1). With such a configuration, when the user desires that it is sufficient to preset only the information for specifying the frequency, the content registered in the preset memory is the information for specifying only the frequency. This digital broadcast receiving apparatus can be operated. When the content registered in the preset memory may be information specifying only the frequency, that is, when the frequency is used as one unit of registration, the amount of data registered in the preset memory for one unit is one program. Is less than when registering as a unit. Therefore, when the frequency is registered in the preset memory as one registration unit, the number of registration units can be increased.
[0008]
In order to achieve the above object, a digital broadcast receiving apparatus having a memory and an operation unit for registering predetermined preset information is further provided with one program as a unit of registration as predetermined preset information to be registered in the memory. One of a first registration format for registering information for specifying a program and a frequency including the program, and a second registration format for registering information for specifying only a frequency using one frequency as a unit of registration. The registration in the memory can be performed, and the registration in the first registration format or the registration in the second registration format is performed according to a user selection via the operation unit. Is added to the registration control means (claim 2). In the case of the second registration format (in the case of registering one frequency as a unit), the amount of data registered in the preset memory for one unit is in the case of the first registration format (one program is a unit). ). Therefore, in the case of the second registration format, the number of units of registration can be increased as compared with the case of the first registration format.
[0009]
In addition to digital broadcast receivers,
(1) If the registration format performed by the registration control unit is the first registration format, the operation unit uses the information registered in the memory to specify the program and the frequency containing the program. Control to play the program selected by the user via
(2) When the registration format performed by the registration control unit is the second registration format, the frequency selected by the user via the operation unit using the information that specifies only the frequency registered in the memory. And prompts the user to select one program from the received frequencies, thereby controlling the program selected by the user via the operation unit to be reproduced. , A channel selection control means may be added (claim 3). The tuning control means performs a tuning process according to the contents registered in the preset memory.
[0010]
Here, when the digital broadcast is DAB,
(1) When the first registration format is used, information specifying a program and a frequency including the program, which is registered in the memory, includes a service ID, a service label, and a sub-channel ID. And the information on the frequency includes a frequency value, an ensemble ID, and an ensemble label,
(2) The information specifying only the frequency, which is registered in the memory when the second registration format is used, may be configured to include a frequency value, an ensemble ID, and an ensemble label (claim 4).
[0011]
In order to achieve the above object, in a digital broadcast receiving apparatus having a memory and an operation unit for registering predetermined preset information, as a predetermined preset information to be registered in the memory, one frequency is used as a unit of registration, and A registration control unit for registering information in a memory in a registration format for registering information to be specified is added (claim 5). With such a configuration, when the user desires that it is sufficient to preset only the information for specifying the frequency, the content registered in the preset memory is the information for specifying only the frequency. This digital broadcast receiving device can be operated.
[0012]
In addition, in this digital broadcast receiving device, using the information registered in the memory and specifying only the frequency, receiving the frequency selected by the user via the operation unit, from the received frequency to the user On the other hand, a channel selection control means for prompting an input for selecting one program and thereby controlling the program selected by the user via the operation unit so as to be reproduced may be further added. Item 6).
[0013]
When the digital broadcast is DAB, the information registered in the memory and specifying only the frequency may include a frequency value, an ensemble ID, and an ensemble label (claim 7).
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 shows a block diagram of a DAB broadcast receiving apparatus 50 as an embodiment of the present invention. DAB includes a plurality of programs in each frequency (ensemble), and a program including information on programs (service ID and the like) and information on frequency (ensemble ID) in addition to audio services such as music and talk programs. Related information is also distributed.
[0015]
The broadcast wave of the digital audio broadcast is input to the tuner 2 via the antenna 1. The tuner 2 tunes to a broadcast wave frequency, amplifies a high-frequency signal, and converts a high-frequency signal into an intermediate frequency signal (IF signal) having a constant amplitude level. At this time, unnecessary frequency components that cause interference are removed by a band-pass filter that extracts only the broadcast wave frequency. The IF signal is digitized by the AD converter 3 and sent to the decoder unit 4.
[0016]
The decoder unit 4 can decode the received data, extract program-related information from the received data, and send it to the receiver control unit 9. The receiver control unit 9 manages all functions of the broadcast receiving device 50, in addition to receiving program-related information from the decoder unit 4, writing and reading to and from the memory 10 backed up by a battery. In addition, the receiver control unit 9 can cause the display unit 12 to display necessary display information such as a service name. The operation unit 12 is an operation unit for a user to give various instructions to the broadcast receiving device 50, and includes a preset key and the like. The memory 10 is used as a preset memory for registering predetermined preset information.
[0017]
When a program designation instruction is sent from the receiver control unit 9 to the decoder 4, the decoder unit 4 performs a process of extracting audio data of the designated program from the received data. Then, the audio data of the extracted program is sent to the DA converter 5. The D / A converter 5 converts a digital signal into an analog signal. The analog signal from the D / A converter 5 is sent to a speaker 8 via an audio amplifier 7 after volume and sound quality are adjusted in an electronic volume 6.
[0018]
The service hierarchy of DAB can be represented as shown in FIG. That is, DAB has a configuration in which one frequency (ensemble) includes a plurality of programs (services). The user first selects a network station called an ensemble, and then selects a service (service A, service A, By selecting the service B or the service C), this program can be viewed.
[0019]
Next, the preset function in the digital broadcast receiving device 50 will be described with reference to the flowcharts in FIGS. This preset function is realized by registering the following information in a memory 10 used as a preset memory under the control of the receiver control unit 9.
・ Frequency ・ Ensemble ID
・ Ensemble label ・ Service ID
・ Service label ・ Sub channel ID
[0020]
The preset function in the digital broadcast receiving apparatus 50 performs presetting in service units (hereinafter, this registration format is referred to as service preset) or presetting in ensemble units (hereinafter, this registration format is referred to as ensemble preset). ) Is provided in a selectable format. Here, in the case of the service preset, information on one service (program) and the frequency including the service is registered in the preset memory, whereas in the case of the ensemble preset, only the information on the frequency is stored in the preset memory. be registered.
[0021]
The flowchart of FIG. 3 shows a process for selecting a registration format in the preset memory. For example, this process is executed when the power of the broadcast receiving device 50 is turned on. When this processing is started, first, the user receives an input for selecting whether to perform service preset or ensemble preset. The selection here is performed by the user performing a predetermined operation via the operation unit 11.
[0022]
If the user selects an ensemble preset (S1: ensemble specification), register the preset memory in consideration of the size of the preset memory and the size of information on one ensemble required in the ensemble preset. A maximum possible unit number m is obtained and set (S2). On the other hand, if the service preset is selected by the user (S1: service specification), the preset memory is considered in consideration of the size of the preset memory and the size of information on one service required by the service preset. The maximum number n of units that can be registered in the program is determined and set (S3). After step S2 or step S3, the present process ends.
[0023]
Since the size of the information about one ensemble required in the ensemble preset is smaller than the size of the information about one service required in the service preset, the number of units that can be registered is the case of the ensemble preset. Are more, so that m> n.
[0024]
FIG. 4 is a flowchart showing a registration process to the preset memory. This process is called and executed when a user operates a predetermined key in the broadcast receiving device 50. When the present process is started, first, information on the ensemble is registered in the preset memory (S11). The contents registered here can be used even in the case of a service preset. Next, the user selects which of the preset specifications has been set by the registration format selection process of FIG. 3 (S12). If it is an ensemble preset (S12: ensemble specification), there is no more content to be registered, so this process ends.
[0025]
On the other hand, if the specification of the preset is a service preset (S12: service specification), registration in the preset memory is performed so as to reflect information on services required for the service preset (S13). After the registration in step S13, this processing ends. As described above, the registration process of FIG. 4 is configured to select whether to register service-related information in accordance with the registration format of the preset selected by the user.
[0026]
An example of the contents registered in the preset memory by the processing of FIG. 4 when the ensemble preset is selected is shown in Table 1 below. In this case, data registered for one registration unit (hereinafter, one registration unit is referred to as a channel (Ch)) is a frequency, an ensemble ID, and an ensemble label.
[0027]
[Table 1]

[0028]
On the other hand, an example of the contents registered in the preset memory by the processing of FIG. 4 when the service preset is selected is shown in Table 2 below. In this case, data registered for one unit (Ch) is a frequency, an ensemble ID, an ensemble label, a service ID, and a sub-channel ID.
[0029]
[Table 2]

[0030]
By comparing Table 1 and Table 2, it is also found that the data amount of one unit registered in the preset memory in the case of the ensemble preset is smaller than the data amount of one unit in the case of the service preset. It can be understood that the number of units is larger in the case of. That is, in the broadcast receiving device 50, it is possible to select whether to use the ensemble preset or the service preset, and the format registered in the preset memory is changed according to the selection, so that the preset memory is used efficiently. Like that.
[0031]
In the process of pressing the preset key provided on the operation unit 11 to call the preset content and selecting a channel, the ensemble preset and the service preset are different processes as described below. That is, in the service preset, for example, when one of the preset keys is depressed and Ch1 (Table 2) is selected, data (frequency, ensemble ID, service ID, sub-channel) related to Ch1 is stored in the preset memory (Table 2). (ID, ensemble label, service label) are all read, the selected frequency is received based on the information, and the process for reproducing the selected program is performed.
[0032]
On the other hand, in the ensemble preset, when one of the preset keys is pressed and Ch1 (Table 1) is selected, data (frequency, ensemble ID, ensemble label) relating to Ch1 is read from the preset memory (Table 1). The reception of the selected frequency is performed based on these pieces of information. Next, for each service within the frequency, a manual user input is further prompted, and when the user performs a predetermined operation to select a service, a process for reproducing the manually selected service is performed.
[0033]
Note that the configuration of the broadcast receiving apparatus shown in FIG. 1 is one example, and the present invention can be applied to various types of digital broadcast receiving apparatuses. Also, the flowcharts shown in FIGS. 3 and 4 can be variously modified. For example, the flowchart shown in FIG. 3 may be configured to be executed not only when the power of the broadcast receiving apparatus 50 is turned on but also when a user performs a predetermined operation.
[0034]
Information such as an ensemble ID, a service ID, and the like illustrated as information for specifying a frequency and as information for specifying a program and a frequency including the program are merely examples, and these are equivalent to each other. It can be replaced with various information.
[0035]
【The invention's effect】
As described above, according to the present invention, it is possible for the user to select whether to perform registration in the preset memory in the form of an ensemble preset or in the form of a service preset. When registering in the form of an ensemble preset, the amount of data required as one unit is smaller than when registering in the form of a service preset. As a result, the number of units that can be registered increases, and the preset memory becomes smaller. It can be used efficiently.
[Brief description of the drawings]
FIG. 1 is a block diagram of a DAB broadcast receiving apparatus as an embodiment of the present invention.
FIG. 2 is a diagram illustrating a service hierarchy of DAB.
FIG. 3 is a flowchart showing processing related to selection of a registration format in a preset memory.
FIG. 4 is a flowchart showing a registration process to a preset memory.
[Explanation of symbols]
2 Tuner unit 3 AD converter 4 Decoder unit 9 Receiver control unit 10 Memory 11 Operation unit 12 Display unit 50 Broadcast receiving device

Claims (7)

A broadcast receiving device for receiving a digital broadcast containing a plurality of programs at each frequency, including a memory for registering predetermined preset information, as the predetermined preset information to be registered in the memory, A user can select whether to register information specifying a program and a frequency including the program as one unit of registration or to register information specifying only a frequency using one frequency as a unit of registration. A digital broadcast receiving device, characterized in that: A broadcast receiving apparatus for receiving a digital broadcast including a plurality of programs in each frequency,
A memory for registering predetermined preset information,
An operation unit for a user to perform an operation;
As the predetermined preset information to be registered in the memory, a first registration format for registering information for specifying a program and a frequency including the program using one program as a unit of registration, and As a unit, registration in the memory can be performed in one of the second registration formats for registering information for specifying only a frequency, and registration in the first registration format or the second registration can be performed. Registration control means configured to perform registration in a format according to a user selection via the operation unit,
A digital broadcast receiving device comprising: (1) When the format of the registration performed by the registration control means is the first registration format, information for specifying the program registered in the memory and a frequency including the program is used. Performing control so that a program selected by the user via the operation unit is reproduced;
(2) When the form of registration performed by the registration control unit is the second registration form, the information is used to specify only the frequency registered in the memory, and is used by the user via the operation unit. Receiving the selected frequency, and prompting the user to select one program from the received frequencies, thereby reproducing the program selected by the user via the operation unit. Further comprising tuning control means for performing control so that
The digital broadcast receiving device according to claim 2, wherein: The digital broadcast is DAB,
When the first registration format is used, the information specifying the program and the frequency including the program registered in the memory includes information on the program including a service ID, a service label, and a sub-channel ID. Information about the frequency includes a frequency value, an ensemble ID, and an ensemble label;
The information specifying only the frequency registered in the memory when the second registration format is used, includes a frequency value, an ensemble ID, and an ensemble label;
The digital broadcast receiving device according to claim 2 or 3, wherein: A broadcast receiving apparatus for receiving a digital broadcast including a plurality of programs in each frequency,
A memory for registering predetermined preset information,
An operation unit for a user to perform an operation;
As predetermined preset information to be registered in the memory, with one frequency as a unit of registration, a registration control unit for registering in the memory in a registration format for registering information specifying only a frequency,
A digital broadcast receiving device comprising: Using the information that specifies only the frequency registered in the memory, receiving the frequency selected by the user via the operation unit, and selecting one program for the user from the received frequency. 6. The digital device according to claim 5, further comprising a channel selection control unit for prompting an input for performing the selection, thereby performing control so that a program selected by a user via the operation unit is reproduced. Broadcast receiver. The digital broadcast is DAB,
The information specifying only the frequency registered in the memory includes a frequency value, an ensemble ID, and an ensemble label,
The digital broadcast receiving device according to claim 5 or 6, wherein:

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