H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 1/38 (2006.01) H04B 1/034 (2006.01) H04M 1/02 (2006.01) H05K 5/02 (2006.01) H04Q 7/32 (2006.01)
Patent
CA 2184771
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.
Ricardo George L.
Simmons William Davis
Tull Bernie Dee Jr.
At&t Corp.
Kirby Eades Gale Baker
Lucent Technologies Inc.
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