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Puay Hoe Andrew See, James Jaffee, Steven Mollenkopf, Sandor Szabo: Wireless communications transceiver: transmitter using a harmonic rejection mixer and an RF output offset phase-locked loop in a two-step up-conversion architecture and receiver using direct conversion architecture. Qualcomm Incorporated, Philip R Wadsworth, Charles D Brown, Kenyon S Jenckes, January 23, 2007: US07167686 (6 worldwide citation)

A wireless transceiver includes a transmitter having a harmonic rejection mixer and an RF output phase-locked loop in a two step up-conversion architecture, and a direct conversion receiver. The transmitter includes a local oscillator for producing a signal at a multiple of an intermediate frequency ...


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Steven M Mollenkopf, Puay Hoe Andrew See, Brett C Walker: Multi-standard transmitter system and method for a wireless communication system. Qualcomm Incorporated, Philip Wadsworth, Charles Brown, Richard Bachand, January 18, 2005: US06845083 (6 worldwide citation)

A transmitter 108 converts a digital baseband signal input 150 for transmission by an antenna 114 to support multiple communication standards. An over-deviation phase multiplier 130 increases signal phase deviation by a factor of M. A digital phase modulator 176 applies trigonometric lookup tables. ...


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Puay Hoe Andrew See, James Jaffee, Steven Mollenkopf, Sandor Szabo: Wireless communications transceiver: transmitter using a harmonic rejection mixer and an RF output offset phase-locked loop in a two-step up-conversion architecture & receiver using direct conversion architecture. QUALCOMM Incorporaton, Qualcomm Incorporated, Patents Department, January 8, 2004: US20040005869-A1 (1 worldwide citation)

A wireless transceiver includes a transmitter having a harmonic rejection mixer and an RF output phase-locked loop in a two step up-conversion architecture, and a direct conversion receiver. The transmitter includes a local oscillator for producing a signal at a multiple of an intermediate frequency ...


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Puay Hoe Andrew See, Gary John Ballantyne, James Jaffee, Gurkanwal Kamal Sahota: Baseband compensation of an offset phase locked loop. QUALCOMM Incorporated, Jiayu Xu, June 16, 2009: US07548593

A phase modulator faithfully reproduces higher frequency modulation using an offset phase-locked loop (OPLL) without passing excessive noise through an increased bandwidth of the OPLL. A quadrature modulator modulates information from a baseband signal onto a passband IF signal and, after a limiter ...


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Puay Hoe Andrew See, Gary John Ballantyne, James Jaffee, Gurkanwal Kamal Sahota: Baseband compensation of an offset phase locked loop. Qualcomm Incorporated, March 15, 2007: US20070058750-A1

A phase modulator faithfully reproduces higher frequency modulation using an offset phase-locked loop (OPLL) without passing excessive noise through an increased bandwidth of the OPLL. A quadrature modulator modulates information from a baseband signal onto a passband IF signal and, after a limiter ...


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Steven M Mollenkopf, Puay Hoe Andrew See, Brett C Walker: Multi-standard transmitter system and method for a wireless communication system. Qualcomm Incorporated, Patents Department, December 11, 2003: US20030227896-A1

A transmitter 108 converts a digital baseband signal input 150 for transmission by an antenna 114 to support multiple communication standards. An over-deviation phase multiplier 130 increases signal phase deviation by a factor of M. A digital phase modulator 176 applies trigonometric lookup tables. ...


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