Pioneer Electronic Corporation

Junichi Fuse

Shuichi Mori

Hisashi Kihara

Takashi Miyake

Yoshikatsu Ikata

Nobuo Utsugi

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.

Growing community of inventors

Kawagoe, Japan

Junichi Fuse