JP2009201021A - Rds radio receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent programs of the same content from being set redundantly to one preset button and to always enable control based on newest information without using a built-in ROM storing broadcast station data. <P>SOLUTION: The radio receiver includes a receipt treatment part 2 for receiving broadcast wave where RDS data is superposed, a control part 10 for carrying out calculations for various treatment, a memory part 3 for enabling storing and reading of various data, a DSP treatment part 6 for treating digital data including voice information, a preset treatment part 11 for carrying out treatment for achieving a preset function for properly modifying or adjusting setting of a receipt station, an input part 4 constituted having a preset button, an output part 5, and a list preparation part 12 for preparing data of a structure correlating a preset button, a PTY code and a PI code with the PTY code allocated thereto in RDS data based on the RDS code. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a radio receiver capable of receiving an RDS (Radio Data System) broadcast, and more particularly to a preset function for appropriately changing or adjusting a setting of a receiving station.

  In recent years, RDS broadcasting has been performed in which additional information is broadcast on FM radio broadcast signals. The RDS data includes a PI (Program Identification) code attached to each RDS data for identifying a program, a PTY (Program Type) code indicating the genre of the broadcast content, and TA / TP ( Information such as Traffic Announcement Identification / Traffic Program Identification) code is included. In such a radio receiver capable of receiving RDS broadcasts, the setting of the receiving station is appropriately set in order to respond to changes in the signal reception state associated with movement when used in a moving body such as an automobile and user preferences. There is a need to particularly enhance the preset function for changing or adjusting.

  The following conventional inventions are disclosed as techniques related to the preset function. The radio receiver according to the conventional invention includes a storage unit that stores a plurality of broadcast station data, each of which includes a broadcast station data including a pair of broadcast frequency and broadcast program type information, and a reception process that receives a broadcast radio wave. An input unit for inputting type selection information for selecting the identification information, and when the type selection information is input, the plurality of broadcasting station data based on the type selection information And searching means for sequentially retrieving broadcast station data having type information corresponding to the type selection information from the storage unit (see Patent Document 1).

In this conventional invention, when a predetermined operation (long pressing) is performed on a preset button (input unit) to which a certain genre is assigned, broadcasting as illustrated in FIG. 4A stored in the built-in ROM (storage unit). As shown in FIGS. 4B and 4C, broadcast station data having the same genre, that is, PTY is extracted from the station data list, and a receivable frequency is detected from the broadcast station data, and FIG. As shown, frequencies that can be received for each genre (PTY) are listed and assigned to the operated preset button. Then, when a predetermined operation (short press) is performed on the preset button, the frequency is switched to the next frequency assigned to the preset button, and the broadcast content is switched accordingly. Specifically, in FIG. 4D, when the reception frequency at the first time point is Fx001_A, the preset button 1 is switched to Fx021_A by being pressed once.
JP-A-7-254845

  However, in the apparatus according to Patent Document 1 described above, since the frequency for each preset button, that is, the allocation of the receiving station is performed only by the PTY code, that is, the genre, it is not possible to identify the program provided by this receiving station. Can not. For this reason, there may be a problem that a program having the same content is assigned to one preset button.

  In this conventional invention, the frequency assigned to the preset button is picked up from the broadcasting station data (region, genre, frequency, etc.) stored in the built-in ROM. However, the information in the built-in ROM cannot be updated at normal times. Therefore, there is a problem that it is difficult to cope with a change in the situation such as increase / decrease in the number of broadcast stations or change in the frequency used on the broadcast station.

  In order to solve the above-described problems, the present invention provides a reception processing unit that receives a broadcast radio wave on which RDS data including a PI code that enables program identification and a PTY code indicating a genre of broadcast content is superimposed. And a control unit that performs arithmetic processing for executing various types of processing, a storage unit that can store and read various types of data, a DSP processing unit that processes digital data including audio information, and the setting of the receiving station as appropriate A preset processing unit that performs processing for realizing a preset function to be changed or adjusted, and a user interface that transmits a user operation command to the control unit, and includes a preset button that is operated when the preset function is used. An input unit configured; an output unit that is a user interface that transmits information created by the control unit to a user; A list creation unit that creates data having a structure in which the preset button, the PTY code, and the PI code to which the PTY code is assigned in the RDS data are associated based on the RDS data received by the reception processing unit An RDS radio receiver.

  According to this RDS radio receiver, a list in which a preset button, a PTY code, and a PI code are associated is created based on RDS data received when the device is used, and the preset button is set based on the list. Therefore, based on the latest information, it is possible to set not only the genre of the broadcast content but also the difference between programs.

  In addition, the present invention receives broadcast radio waves superimposed with RDS data including a PI code that enables program identification and a PTY code indicating the genre of broadcast contents, and sets the receiving station appropriately. A control method of an RDS radio receiver having a preset function for changing or adjusting, a preset button operated by a user when using the preset function, the PTY code, and the PTY code in the RDS data And creating data having a structure associated with the PI code assigned.

  According to the control method of the RDS radio receiver, a list in which preset buttons, PTY codes, and PI codes are associated is created based on RDS data received when the apparatus is used, as described above. Since the preset button is set based on the latest information, it is possible to set not only the genre of the broadcast content but also the difference in the program based on the latest information.

  In addition, the present invention receives broadcast radio waves superimposed with RDS data including a PI code that enables program identification and a PTY code indicating the genre of broadcast contents, and sets the receiving station appropriately. A data structure used in an RDS radio receiver having a preset function for changing or adjusting, a preset button operated by a user when using the preset function, the PTY code, and the RDS data The PI code to which the PTY code is assigned is associated with the PI code.

  By utilizing data having such a structure, the above-described RDS radio receiver and control method thereof according to the present invention can be realized.

  According to the above-described invention, it is possible to prevent a program having the same contents from being set to one preset button, and to perform control based on the latest information without using a built-in ROM for storing broadcast station data.

Embodiment 1 of the Invention
In FIG. 1, the configuration of an RDS radio receiver 1 according to the present invention is shown in a block diagram. The RDS radio receiver 1 includes a reception processing unit 2, a storage unit 3, an input unit 4, an output unit 5, a DPS processing unit 6, a control unit 10, a preset processing unit 11, and a list creation unit 12. ing.

  The reception processing unit 2 includes a PLL circuit, a tuning circuit, and the like, receives a broadcast radio wave including RDS data, and performs processing from modulation to baseband extraction.

  The storage unit 3 includes a temporary storage memory such as a RAM, and can store and read received RDS data, data created by a list creation unit 12 to be described later, and other temporary data generated during execution of various controls. It is to make.

  The input unit 4 is a user interface that transmits a user's operation command to the control unit 10 and includes a power button, a genre switching button, a tuning button, and a plurality of preset buttons.

  The output unit 5 is a user interface that transmits information created by the control unit 10 or the like to the user side, and is configured by a display that visually displays information using a speaker, a light, a liquid crystal, or the like. The

  The DSP processing unit 6 is a part that processes an acoustic signal and the like by cooperation of a CPU, a program, and the like, and has an effect of creating an acoustic effect suitable for the genre of music to be broadcast.

  The control unit 10 is a part that executes various types of information processing through the cooperation of a CPU, a program, and the like, and controls the units 2 to 6. Moreover, the control part 10 has the preset process part 11 and the list preparation part 12 which are mentioned later as a functional element for specifying this invention.

  The preset processing unit 11 is a part that performs processing for appropriately changing or adjusting the setting of the receiving station by cooperation of a CPU, a program, and a preset button constituting a part of the input unit 4. The preset function itself has been conventionally applied to radio devices. For example, in order to respond to a change in a receivable frequency band associated with movement of a car or the like, or a user's preference, it can be performed by user operation or automatic control. The setting of the receiving station (frequency) can be changed.

  The list creation unit 12 is a part that performs processing for creating information effective for executing the preset function based on the RDS data received by the reception processing unit 2 in cooperation with a CPU, a program, and the like.

  FIG. 2 shows the flow of processing performed to realize a preset function centered on processing by the list creation unit 12. First, processing for receiving RDS data from broadcast radio waves is performed by the reception processing unit 2, the control unit 10, and the like (S1). This processing is not a main part of the present invention but can be realized by appropriately using a well-known technique, and thus the description thereof is omitted. The RDS data received in S1 is stored in the storage unit 3 in the state illustrated in FIG. The RDS data 20 shown in FIG. 3A includes a PTY code column 21 indicating the genre of broadcast content, a PI code column 22 for program identification, and other information columns 23 such as TA / TP and frequency. Has been.

  Next, as shown in S <b> 2 in FIG. 2, the list creation unit 12 performs a process of associating a PTY code with a PI code based on the RDS data 20. In S2, a PTY-PI list 30 as illustrated in FIG. 3B is created. The PTY-PI list 30 includes a PTY code column 31 and a corresponding PI code group column 32. The corresponding PI code group column 32 extracts PI codes having the same PTY code from the RDS data 20. However, it is assigned for each PTY code.

  Next, as shown in S <b> 3 in FIG. 2, the list creation unit 12 performs processing of associating a preset button, a PTY code, and a PI code with each other based on the PTY-PI list 30. In S3, a preset button-PTY-PI list 40 as illustrated in FIG. 3C is created. The preset button-PTY-PI list 40 includes a preset button column 41, a PTY code column 42, a genre name column 43, and a corresponding PI code group column 44, and a plurality of preset button-PTY-PI lists 40 are based on the PTY-PI list 30. A PTY (genre) is assigned to each provided preset button, and a PI code group is assigned to each PTY. The genre name column 43 provides ancillary information and is not necessarily required in the present invention.

  The preset button-PTY-PI list 40 created as described above is stored in the storage unit 3, and is used for broadcast selection processing by a preset button, as indicated by S4 in FIG. In S4, the control unit 10 determines a PI code assigned to the preset button in accordance with an operation performed on the preset button, and executes a process of receiving a broadcast having a frequency specified by the PI code. Specifically, in the preset button-PTY-PI list 40 (see FIG. 3C), the preset button is pressed once with the currently received broadcasting station (PI code) being “C001”. Then, the PI code is switched to “C011”, and reception of a frequency corresponding to this PI code is started. The process of specifying the frequency from the PI code can be performed based on information such as the RDS data 20 shown in FIG. When a plurality of frequencies are specified from one PI code, processing such as using the frequency with the strongest reception intensity is performed.

  As described above, according to the RDS radio receiver 1 according to the present invention, the list creation means 12 performs the process of assigning the PI code for each PTY code, and the preset button-PTY as shown in FIG. -Since the PI list 40 is created and preset buttons are set based on this, it is possible to set not only the genre of the broadcast content but also the difference between programs. As a result, it is possible to prevent a problem that programs having the same contents are registered in duplicate in one preset button. Further, since the preset button-PTY-PI list 40 is created based on RDS data received when the apparatus is used, the preset button-PTY-PI list 40 includes a built-in ROM for storing broadcast station data (broadcast station location, genre, frequency, etc.). Therefore, control based on the latest information is always possible.

It is a block diagram which shows the structure of the RDS radio receiver which concerns on embodiment of this invention. It is a flowchart which shows the flow of the process implemented in order to implement | achieve the preset function in the RDS radio receiver which concerns on embodiment of this invention. 4 is an example of a data structure used for a preset function in the embodiment of the present invention, (a) is an example of the structure of RDS data, (b) is an example of the structure of a PTY-PI list, and (c) is It is a structural example of a preset button-PTY-PI list. (A)-(d) is an example of the data structure utilized for a preset function in a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 RDS radio receiver 2 Reception process part 3 Memory | storage part 4 Input part 5 Display part 6 DPS process part 10 Control part 11 Preset process part 12 List creation part 30 PTY-PI list 40 Preset button-PTY-PI list

Claims (5)

A reception processing unit that receives broadcast radio waves superimposed with RDS data including a PI code that enables identification of a program and a PTY code indicating a genre of broadcast content;
A control unit that performs arithmetic processing for executing various processes;
A storage unit for storing and reading various data;
A DSP processing unit for processing digital data including audio information;
A preset processing unit for performing processing for realizing a preset function for appropriately changing or adjusting the setting of the receiving station;
An input unit configured to have a preset button that is operated when the preset function is used, which is a user interface that transmits an operation command by a user to the control unit;
An output unit which is a user interface for transmitting information created by the control unit to the user side;
List creation for creating data having a structure in which the preset button, the PTY code, and the PI code to which the PTY code is assigned in the RDS data are associated based on the RDS data received by the reception processing unit And
RDS radio receiver comprising: The preset processing unit switches the PI code assigned to the operated preset button in accordance with an operation performed on the preset button, and determines a frequency to be received based on the PI code.
The RDS radio receiver according to claim 1. Receiving broadcast radio waves superimposed with RDS data including a PI code that enables identification of a program and a PTY code indicating a genre of broadcast content;
A method for controlling an RDS radio receiver having a preset function for appropriately changing or adjusting a setting of a receiving station,
Creating data having a structure in which a preset button operated by a user when using the preset function, the PTY code, and the PI code to which the PTY code is assigned in the RDS data are associated with each other.
Control method of RDS radio receiver. Furthermore, according to an operation performed on the preset button, the PI code assigned to the operated preset button is switched, and a frequency to be received is determined based on the PI code.
The method for controlling an RDS radio receiver according to claim 3. Receiving broadcast radio waves superimposed with RDS data including a PI code that enables identification of a program and a PTY code indicating a genre of broadcast content;
A data structure used in an RDS radio receiver having a preset function for appropriately changing or adjusting a setting of a receiving station,
A data structure in which a preset button operated by a user when using the preset function, the PTY code, and the PI code to which the PTY code is assigned in the RDS data are associated with each other.

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