Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion
Patent
1995-03-07
1998-03-31
Pham, Chi H.
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency modifying or conversion
455280, 455338, 381 686, H04B 128
Patent
active
057349762
ABSTRACT:
A micro-receiver for receiving a high frequency frequency modulated or phase modulated signal, including a single integrated circuit in BiCMOS technology and on which is integrated a high frequency amplifier, an oscillator, a modulator, an intermediate frequency filter, an intermediate frequency amplifier, a demodulator, a low pass filter and a low frequency amplifier. The integrated circuit includes in addition a muting or squelch circuit, a voltage multiplier as well as a standby circuit. The circuits working in a lower frequency range are implemented in CMOS technology, and operated in a very energy-saving way with a single-cell battery with a low battery voltage of 1.3 V. The voltage multiplier provides a higher operating voltage for the circuits working in a higher frequency range. Because of the high degree of integration made possible by implementing the intermediate frequency and low frequency circuits in CMOS technology, it is possible to dispose the receiver, including a battery and earphone, in a housing which can be inserted into the external auditory canal of a person.
REFERENCES:
patent: 3979679 (1976-09-01), Bush et al.
patent: 4207590 (1980-06-01), Naimpally et al.
patent: 4332032 (1982-05-01), Daniel
patent: 4761829 (1988-08-01), Lynk, Jr. et al.
patent: 4873527 (1989-10-01), Tan
patent: 5020147 (1991-05-01), Okanobu
patent: 5402494 (1995-03-01), Flippe et al.
patent: 5498885 (1996-03-01), Deen et al.
patent: 5519762 (1996-05-01), Barlett
Song et al., "A CMOS Double-Heterodyne FM Receiver", 8107 IEEE Journal of Solid-State Circuits, SC-21(1986), Dec., No. 6, New York USA.
Dooremolen et al., "A complete f.m. radio on a chip", 8028 Electronic Components & Applns., vol. 5(1983) Jun., No. 3, Eindhoven, Nederland.
Bartschi Anton
Callias Francois
Arthur Gertrude
Pham Chi H.
Phonak Communications AG
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