JPH06268543A - Rds receiver - Google Patents

Abstract

PURPOSE:To provide a RDS receiver capable of a diversified sound field control. CONSTITUTION:A PTY selection mode is set by a PTY mode/item selection key 12, for example, PTY=10:POMP is selected as a PTY item and when an E1 of an EQ preset memory key 11 is depressed after a relevant set key 13 is depressed, the E1 and PTY=10 are set by one to one correspondence. Then when the PTY=10 is received after the reception of RDS, the EQ memory of the E1 is automatically called to control an equalizer section 8 according to its EQ curve. The plural PTY versus EQ curve are set automatically through cross reference by executing the setting above up to E1-En.

Description

Detailed Description of the Invention

[0001]

This invention relates to RDS receivers.

[0002]

2. Description of the Related Art R, which has been conventionally used in Europe
One of the features of DS broadcasting is PTY (program type
Display) function. This is a signal for informing the listener that the content of the broadcast is, for example, news, music, drama, education, science, etc. Furthermore, by using EON, the types of programs on other networks can be known. You can do it. This PTY is a function mainly intended for display, and this signal can be used to enable priority interruption of a program. RDS like this
Japanese Patent Laid-Open No. 64-74839 proposes a receiver configured to change the sound quality depending on whether the program is music or another program (speech).

[0003]

However, in the above-mentioned conventional configuration, the sound quality can be controlled only by distinguishing between music and speech, and the user can store the desired EQ characteristic.
There was a defect that it could not be used with Q memory. The present invention aims to solve the above-mentioned problems of the prior art.

[0004]

In order to achieve the above object, an RDS receiver of the present invention stores a receiving section for receiving an RDS broadcast, an equalizer section for adjusting a reproduction frequency characteristic, and reproduction frequency characteristic information. A combination of a plurality of storage units, an operation unit for selecting reproduction frequency characteristics, a predetermined code in the RDS broadcast signal, and predetermined reproduction frequency information is stored in the storage unit, and when the predetermined code is received, And a controller for adjusting the equalizer unit by calling predetermined reproduction frequency information.

[0005]

The reproduction frequency characteristic information is stored in the plurality of storage units, and the combination of the predetermined code in the RDS broadcast signal and the predetermined reproduction frequency information is stored in the storage unit by the control unit. When the predetermined code is received, the control unit calls the predetermined reproduction frequency information and adjusts the equalizer unit.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, the information received by the FM tuner 1 is sent to the RDS decoder 2, where the RDS data is decoded, and the RDS data is sent to the CPU 3. The CPU 3 is configured to control the FM tuner 1 and the equalizer unit 8 based on the RDS data and the like.

The CPU 3 is connected to the display driver / display unit 4 so as to perform various displays.
Further, it is configured to receive a command from the keyboard 5. The audio signal received by the FM tuner 1 is demodulated and amplified by the audio reproduction system 6 and converted into audio from the speaker 7.

The CPU 3 is adapted to store the EQ characteristic corresponding to a predetermined PTY, and the E characteristic corresponding to the PTY is stored.
The equalizer unit 8 is controlled according to the Q characteristic. The keyboard 5 is provided with an EQ curve setting key 10, and the EQ curve set here can be set in each EQ preset memory key 11. Further, the PTY mode / item selection key 12 and the corresponding set key 13 are provided so that the PTY selected by the PTY mode / item selection key 12 and each EQ preset memory key 11 can be associated with each other by the corresponding set key 13. ing.

As shown in FIG. 5, PTY of RDS is currently defined as PTY = 0: NONE and PTY = 3.
1: 17 types including ALARM. Now, the PTY mode / item selection key 12 is used to set the PTY selection mode. For example, as a PTY item, PTY = 10: POP M
Select. When the corresponding set key 13 is pressed and then E1 of the EQ preset memory key 11 is pressed, the E1 and PTY = 10 are set in a one-to-one correspondence. After that, RDS is received and PTY = 10
Is received, the EQ memory of E1 is automatically called, and the equalizer unit 8 is controlled according to the EQ curve. If the above settings are performed from E1 to En, a plurality of PTY-to-EQ curve automatic correspondence settings are possible.

As the equalizer section 8, 5 EQ elements (6
3Hz, 250Hz, 1kHz, 4kHz, 12.5k
Hz), when each element ± 6 step variable is used, the preset memory Ek has 63 Hz: +5, 25
Information such as 0 Hz: +2, --12.5 kHz: +1 is stored.

When an unselected PTY is received, the preset EQ is set to an arbitrary EQ mode. Further, the EQ curve can be set by the EQ curve setting key 10 while the corresponding PTY is set during reception and the memory can be rewritten. Furthermore, the above setting can be made possible for other audio sources such as tape and CD, in which case the user can set a desired curve corresponding to the source.

In the above, only the correspondence between the PTY code in the RDS signal and the EQ memory has been described.
The present invention is not limited to the Y code, but may be configured such that the PI code, which is a program identification code, and the EQ memory are associated with each other, and the specific EQ memory is automatically called for a specific program.

The operation will be described with reference to FIG. PTYk (0
.. 31) and Ek = E1 to En are correspondingly set (step 20), and if they are not corresponding, an arbitrary EQ mode is called (step 23). When it is supported, it is judged whether or not PTY = k is received, and when not received, the arbitrary EQ mode is called in step 23. When it is received, the preset Ek is called (step 22), and voice reproduction is executed by the EQ curve stored in the memory Ek (step 24).

The connecting operation of the PTY and EQ preset memory keys 11 will be described with reference to FIG. When it is determined that the PTY selection mode is set (step 30), the PTY item is cyclically displayed and selected by stopping (step 31). Check if selection is complete (step 32),
It is checked whether the PTY is already in the memory (step 33). If it is in the memory, the PTY of the memory is cleared (step 34). When the Ek key is pressed for 2 seconds or more (step 35), the selected PTY item and Ek are combined (step 36).

When the CPU 3 does not further receive the PTY signal, that is, when the RDS data cannot be received, the CPU 3 judges that the reception is bad, and selects the EQ curve with a lowered high frequency to reduce the noise. There is. This EQ curve is made to correspond to the Ew key of the EQ preset memory key 11. That is, it is known that high-frequency noise increases when the electric field strength becomes weak in FM reception. Further, the reception capability of RDS data requires a certain level of electric field strength. Utilizing this characteristic, R
It is possible to judge the deterioration of the reception condition such as the charge intensity depending on whether the DS can be received. Whereas the high cut control by the S meter of the tuner has a characteristic peculiar to the set as in the past, when configured in this way, noise reduction control according to the user's desire (f characteristic, arbitrary setting of high cut amount) Is possible. As a result, for example, a user who wants high-fidelity characteristics may set a high cut so that even if there is some noise, a high cut may be set for a user who absolutely does not like noise. Control becomes possible.

The operation will be described with reference to FIG. It is determined whether the RDS is on (step 40), and if it is not on, the reception is continued (step 43). If it is on, it is judged whether or not there is RDS data (step 41). If there is no RDS, call Ew of the EQ preset memory key 11 (step 4
2) The reception is continued based on the high cut control stored in the Ew (step 43).

In the above embodiment, the control corresponding to a predetermined EQ characteristic such as high cut is executed when the RDS signal is not detected. However, the present invention is not limited to this, for example, an unregistered PTY code. It is also possible to select a predetermined memory in which a predetermined EQ characteristic is stored when is received.

As described above, according to the above embodiment, the EQ characteristic corresponding to the PTY code can be set, and another P characteristic can be set.
There is an effect that various sound field controls can be performed, such as corresponding to an I code or executing high cut set by the user when the PTY signal cannot be received.

[0019]

As described above, the RDS receiver of the present invention includes a receiving section for receiving RDS broadcast, an equalizer section for adjusting reproduction frequency characteristics, and a plurality of storage sections for storing reproduction frequency characteristic information. A combination of an operation unit for selecting reproduction frequency characteristics, a predetermined code in the RDS broadcast signal, and predetermined reproduction frequency information is stored in the storage unit, and when the predetermined code is received, the predetermined reproduction frequency information is called. Since it has a control unit for adjusting the equalizer unit, various sound field control is possible.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of one embodiment of the present invention.

FIG. 3 is a flowchart showing the operation of the embodiment of the present invention.

FIG. 4 is a flowchart showing the operation of the embodiment of the present invention.

FIG. 5 is an explanatory diagram showing PTY items corresponding to PTY codes.

[Explanation of symbols]

1: FM tuner, 2: RDS decoder, 3: CPU,
4: Display driver / display device, 5: Keyboard, 6: Audio reproduction system, 7: Speaker, 8: Equalizer section, 10: EQ curve setting key, 11: EQ preset memory key, 12: PTY mode / item selection key,
13: Corresponding set key

Claims (2)

[Claims] 1. A receiving section for receiving RDS broadcast, an equalizer section for adjusting reproduction frequency characteristics, a plurality of storage sections for storing reproduction frequency characteristic information, an operation section for selecting reproduction frequency characteristics, and an RDS. A control unit for storing a combination of a predetermined code in the broadcast signal and predetermined reproduction frequency information in the storage unit and, when receiving the predetermined code, calls the predetermined reproduction frequency information and adjusts the equalizer unit; An RDS receiver characterized in that 2. A receiving unit for receiving RDS broadcast, an equalizer unit for adjusting reproduction frequency characteristics, a plurality of storage units for storing reproduction frequency characteristic information, and the receiving unit not detecting a predetermined code in RDS broadcasting. The RDS receiver further comprises: a control unit for recalling predetermined reproduction frequency information from the storage unit to adjust the equalizer unit.