초록 ▼

Cross-over modulation between radio frequency circuits and audio circuits is minimized in a wireless portable transceiver by locating all audio circuitry in a first section of the portable transceiver and all radio frequency circuitry in a second, separate section of the portable transceiver. In vie

Cross-over modulation between radio frequency circuits and audio circuits is minimized in a wireless portable transceiver by locating all audio circuitry in a first section of the portable transceiver and all radio frequency circuitry in a second, separate section of the portable transceiver. In view of modality considerations in small portable transceivers, an audio signal is either radiated or received in the vicinity of the radio frequency circuitry. Isolation of the audio signal is achieved by routing this signal while in its acoustic form. Since audio signals in an electrical form are not routed around or near the radio frequency circuitry, cross-over modulation does not occur between the radio frequency circuitry and the audio circuitry.

대표청구항 ▼

[ We claim:] [1.] A wireless portable transceiver mounted in a housing, the transceiver comprising:a radio frequency component section for containing all radio frequency processing circuitry;an audio frequency component section for containing all audio frequency processing circuitry;an audio receive

[ We claim:] [1.] A wireless portable transceiver mounted in a housing, the transceiver comprising:a radio frequency component section for containing all radio frequency processing circuitry;an audio frequency component section for containing all audio frequency processing circuitry;an audio receiver and an audio transmitter for converting electronic audio frequency signals to acoustic sound signals and acoustic sound signals to electronic audio frequency signals, respectively; where said receiver and said transmitter are both adjacent to each other, and adjacent and electrically connected to said audio frequency component section; andan acoustic channel for coupling acoustic sound energy between a port in said housing and one of said audio transmitter or said audio receiver, where said port and a portion of said channel are in close proximity to said radio frequency component section;such that said channel is implemented without electromagnetic shielding in the vicinity of said radio frequency component section, while cross-over modulation between said audio frequency component section and said radio frequency component section is minimized.