Audio signal reproducing apparatus with semiconductor memory storing
coded digital audio data and including a headphone unit
    83.
    发明授权
    Audio signal reproducing apparatus with semiconductor memory storing coded digital audio data and including a headphone unit 失效
    具有半导体存储器的音频信号再现装置,其存储编码的数字音频数据并包括耳机单元

    公开(公告)号:US5930758A

    公开(公告)日:1999-07-27

    申请号:US887417

    申请日:1997-07-02

    Abstract: A small-sized audio signal reproducing apparatus for hearing reproduced audio signals with the aid of a headphone, wherein digitized and compression encoded audio signals, stored in a semiconductor memory, are read out so as to undergo a decoding operation, which is an inverse operation to compression encoding, to reproduce the audio signals, and the reproduced signals are heard by the headphone. The apparatus may be significantly reduced in size and weight as compared to the apparatus in which a tape or a disk is used as the recording medium.

    Abstract translation: 借助于耳机的助听器再现音频信号的小型音频信号再现装置,其中存储在半导体存储器中的数字化和压缩编码的音频信号被读出,以便进行解码操作,这是一个反向操作 到压缩编码,再现音频信号,再现信号由耳机听到。 与使用带或盘作为记录介质的装置相比,该装置的尺寸和重量可以显着减小。

    Compact radio
    84.
    发明授权
    Compact radio 失效
    紧凑型收音机

    公开(公告)号:US4691383A

    公开(公告)日:1987-09-01

    申请号:US862790

    申请日:1986-05-13

    Inventor: Robert A. DeMars

    Abstract: A compact portable radio is provided, comprising a disk-like body. The radio has the usual circuitry for detecting and amplifying a radio (AM or FM) signal, an earphone assembly comprising a speaker adapted to be received by the ear of the listener and secured to a head band adapted to partially encompass the head of the listener and a wire for conveying the amplified radio signal to the speaker, and volume control. The disk-like body is provided with storage space for storing the wire and also the head band and at least a portion of the speaker. Such storage space provides a facile way of keeping the wire and earphone assembly from becoming tangled when the radio is not in use.

    Abstract translation: 提供了一种紧凑的便携式无线电设备,包括盘状主体。 收音机具有用于检测和放大无线电(AM或FM)信号的通常电路,耳机组件包括适于被收听者的耳朵接收的扬声器并固定到适于部分包围收听者的头部的头带 以及用于将放大的无线电信号传送到扬声器的线,以及音量控制。 盘状体设置有用于存储线的存储空间,以及头带和扬声器的至少一部分。 这样的存储空间提供了当收音机不使用时保持电线和耳机组件变得缠结的简便方式。

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