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Application filed by Shih Chung ChenfiledCriticalShih Chung Chen
Priority to MYUI92000565ApriorityCriticalpatent/MY107555A/en
Publication of MY107555ApublicationCriticalpatent/MY107555A/en
Interconnected Communication Systems, Intercoms, And Interphones
(AREA)
Abstract
A VOICE CONTROLLED SPEAKER MICROPHONE OF A WIRELSS INTERCOM, WHEREIN WHILE THE WIRELESS INTERCOM IS TRANSMITTING VOICES, THE BIAS VOLTAGE OF THE MANUAL SWITCH AND CONDENSER MICROPHONE IS DIVIDED TO GIVE A CURRENT OF 0.6MA TO 1MA AND THEN, WHILE RECEIVING VOICES, THE SPEAKER''S DRIVING VOLTAGE IS MULTIPLIED AND RECTIFIED TO A CURRENT OF 1MA TO 30MA, THEN PROVIDED TO THE CHARGING BATTERY AND SUPPLY TO THE VOICE-CONTROLLED CIRCUIT WHICH IS A LOW VOLTAGE AND LOW POWER CONSUMPTION CIRCUIT WHEREBY THE VOICE-CONTROLLED TRANSCEIVER IS SELF-FEED, SO AS TO ACHIEVE THE OBJECT OF EXTERNALLY POWERLESS AND NO REPLACEMENT OF THE BATTERY. (FIG. 2)
MYUI92000565A1992-04-021992-04-02Voice-controlled speaker microphone of a wireless intercom.
MY107555A
(en)
A battery charger for a portable wireless telephone set having means for tricklingly charging the battery with an increased current during a stand-by period of the telephone set