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US 2004/0204154 A1Published application
Wireless transmitter-receiver set for mobile phone
OwnerLi-Jung Changinventor
Life of this patent
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Abstract
A wireless transmitter-receiver set for a mobile phone comprises a base unit and a remote unit. The base unit has a voice receiver and a transmitter circuit. Sound from a speaker of a mobile phone handset is received by the voice receiver, amplified and emitted as a radio-frequency signal. The remote unit receives the emitted radio-frequency signal, which is subsequently demodulated, amplified and passed on to a remote speaker to be audible. The voice uttered by the user can be transmitted to a destination via a microphone in the mobile phone of the user.
Claims6
A wireless transmitter-receiver set for a mobile phone, comprising:
- abase unit, having an extension piece with a voice receiver and an accommodating space, furthermore housing a transmitter circuit and a battery chamber into which a first battery is inserted;
- and
- a remote unit, having a receiver circuit, a remote speaker and a battery chamber into which a second battery is inserted.
Dependencies are inferred from the claim text.