Pioneer Electronic Corporation

Takashi Miyake

Shinichi Abe

Kazuhiro Kamiya

Shuichi Mori

Hisashi Kihara

Yoshikatsu Ikata

Nobuo Utsugi

Junichi Fuse

Toshiyuki Kimura

Yutaro Ishikawa

Shoji Suenaga

Yuji Yamamoto

Toshihito Ichikawa

Mutsurou Tanoue

Mutsurou Tanque

Jun Miyamura

A method of receiving and displaying RDS data, which are multiplexed to a broadcast electric wave, includes the steps of: receiving the broadcast electric wave; detecting predetermined data in the RDS data, which are included in the received broadcast electric wave; storing at least one of the detected predetermined data into a memory device; selecting the stored predetermined data on the basis of an externally generated instruction; and displaying the selected predetermined data.

Method of and apparatus for receiving and displaying RDS data

This RBDS receiver comprises a database having broadcasting station related information. The receiver is provided with a read-only database memory in which broadcasting station related data have been stored respectively in association with geographical positional information, the broadcasting station related data including broadcasting station identification data, program type identification data and receptiond frequency data; a demodulator system for demodulating the RBDS data from received broadcast waves; a randomly accessible database supplementary memory; and a control system for comparing the RBDS data with the broadcasting station related data and the data stored in the supplementary memory to perform write control for writing the RBDS data into the supplementary memory if a broadcasting station indicated by the RBDS data is not coincident with any of broadcasting stations indicated by the broadcasting station related data and the data stored in the supplementary memory. According to the present invention, the database can be supplemented immediately and accurately in response to updates and revisions of the contents of actually broadcast programs. Also, the control for display and so on can be appropriately performed in accordance with the contents of actually broadcast programs.

RBDS receiver provided with a database having broadcasting station

Multiplex broadcast receiving method and receiver which can easily update the preset contents of classification information, such as a program type, in an RDS broadcasting. The RDS receiver is constituted by a memory control section for storing the classification information (PTY code) demodulated from RDS broadcast waves which are being received into a PTY memory; the PTY memory for storing the classification information; and a station selecting section for selecting a station of the multiplex broadcast waves regarding the classification information by reading out the classification information from the PTY memory. This enables the use of the classification information of the broadcasting station being received as it is, so that the user can store the favorite program type by a simple operation.

Multiplex broadcast receiving method and receiver with program type

A receiver with an automatic receiving-station switching function for automatically switching a current receiving frequency from a reception frequency of a broadcast wave in reception to a reception frequency of a broadcast wave of another station, which is in a good reception condition, when a reception condition of the former broadcast wave becomes poor. After detecting deterioration of the reception condition of a received signal, when the level of a detected signal obtained by detecting the received signal is kept equal to or lower than a threshold value for a predetermined time or longer, the receiver sets muting means to a signal cutoff state to stop the audio output before the activation of the automatic receiving-station switching function. Even if the reception condition becomes poor, the muting means does not cut off an audio signal until the low level of the audio output in the currently receiving broadcasted program continues.

Receiver with automatic receiving-station switching function

A receiver with automatic tuning function includes: unit for dividing an area where broadcasting stations exist into a plurality of blocks and storing block information relating to the blocks; unit for storing station information relating to each of the broadcasting stations located in the block in association with the block information of the block; unit for storing block information of a current block and blocks surrounding the current block; unit for selecting a broadcasting station out of the plurality of broadcasting stations located in the current block by referring to the station information associated with the block information of the current block; unit for receiving electric wave from the station selected; unit for judging receiving condition of the electric wave and outputting a judgement signal; and unit for renewing the current block.

Receiver with automatic tuning function

A multiplex broadcasting station selecting method which can execute a station selecting operation in group units is provided. A PTY code to be compared and a channel are set to one set of large classification information. The user sequentially calls out the PTY codes to be designated to one group and depresses the same channel key or the like each time the desired PTY code is called, thereby storing into memory the large classification information in which a plurality of PTY codes are made correspond to a same channel number. When executing a retrieving operation, the user depresses one operation key. The large classification information corresponding to the channel number is consequently selected and the group having a similar genre can be retrieved as set. The user can receive either one of or all of the broadcasting stations in the large classification information of the group. A process such that the group is allocated to each of the channels which was conventionally impossible can be executed, so that the range of application of the RDS broadcasting is broadened.

Multiplex broadcasting station selection method

Tuner for receiving a plurality of receiving frequencies and audio system having a plurality of audio components, characterized by the provision of a device for generating a designation command for selectively designating a program source such as a broadcast station at the receiving frequency of the tuner or an audio component, and an equalizer for adjusting the audio signal from the selected program source to have a frequency characteristic according to the program source designated by the designation command. By this provision, the need of operating tone controls at each time of the change of program source is obviated, so that the readiness of operation is improved.

Tuner with selective equalization of different program sources

Frequency characteristic setting circuitry for an amplifier generates frequency band data groups using a plurality of characteristic pattern data groups stored in a memory. Each of the frequency band data groups is made by making each item of data of a characteristic pattern data group retrieved from among a plurality of characteristic pattern data groups stored in the memory correspond to each frequency in a designated frequency band. The data groups generated for a plurality of frequency bands are combined together and the equalizing characteristic of the amplifier is controlled according to a characteristic pattern data group obtained by the combination.

Frequency characteristic setting circuitry for an amplifier

A recording medium player apparatus including an open/close body which is disposed so as to openably cover a recording medium insertion slot formed in the front surface portion of a housing. The open/close body has an operation portion for controlling the operation of a play mechanism. The apparatus further includes a support member for pivotally supporting at a free end thereof the open/close body. A spring member constitutes a first driving mechanism for pivoting the support member. The spring member, a gear disposed on the support member, and a pair of fan-like gears which mesh with the gear disposed on the support member constitute a second driving mechanism for pivoting the open/close body relative to the support member in synchronism with the pivotal movement of the support member. This configuration enables the pivotal portion of the open/close body to be disposed at a rear surface portion of the open/close such that the pivotal portion is covered by the front panel portion of the open/close body when the open/close body is in a closed position.

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Kawagoe, Japan

Takashi Miyake