Jack P Glas

US Patent:

6560296, May 6, 2003

Filed:

May 4, 1999

Appl. No.:

09/304639

Inventors:

Jack Glas - Basking Ridge NJ
Vladimir Prodanov - New Providence NJ
Maurice Tarsia - Colonia NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04L 2720

US Classification:

375308, 375261, 375279, 375298

Abstract:

The modulator includes an oscillator generating signals, each having a different phase, and a selector receiving digital data. When the digital data received by the selector changes logic state, the selector supplies a first and second plurality of signals generated by the oscillator to first and second non-linear amplifiers, respectively. An adder then adds the output of each amplifier to generate a radio frequency output.

US Patent:

6904538, Jun 7, 2005

Filed:

Nov 20, 2001

Appl. No.:

09/989272

Inventors:

Jack P. Glas - Basking Ridge NJ, US
Vladimir I. Prodanov - New Providence NJ, US

Assignee:

Agere Systems Inc. - Allentown PA

International Classification:

H04B001/04

US Classification:

713401, 4551142, 455110, 4551151, 375298

Abstract:

The present invention is directed towards a data detector for deriving a data signal from an incoming radio frequency input. The data detector comprises a delay logic which receives an unfiltered signal in quadrature and in-phase components, and applies a delay to each of the in-phase and quadrature phase components of the unfiltered input signal. The detector further comprises a first multiplication logic that multiplies the delayed in-phase component of the unfiltered signal by the quadrature phase component of the unfiltered signal to obtain a first result, and a second multiplication logic that multiplies the delayed quadrature phase component of the unfiltered signal by the in-phase component of the unfiltered signal to obtain a second result. Finally, an adder adds the first result with the second result to generate a data signal. In alternative embodiments a post detection correction algorithm may be added to improve performance.

US Patent:

7020221, Mar 28, 2006

Filed:

Nov 20, 2001

Appl. No.:

09/989605

Inventors:

Jack P. Glas - Basking Ridge NJ, US
Vladimir I. Prodanov - New Providence NJ, US

Assignee:

Agere Systems, Inc. - Allentown PA

International Classification:

H03H 17/30

US Classification:

375329, 375316

Abstract:

The present invention is directed toward a radio, and method for receiving radio frequency signals. The radio comprises an input signal at a first intermediate frequency, an intermediate sampling architecture, a quantizer and a baseband converter. The intermediate frequency sampling architecture comprises receiving the input signal, passing the first intermediate frequency signal through a first filter characterized by steep selectivity and narrow bandpass, converting the filtered signal to a second intermediate frequency and passing the second intermediate frequency signal through a second filter having a bandpass characteristic, but without the steep selectivity characterizing the first filter. The radio further comprises a third filter following the baseband conversion which filters out adjacent channel harmonics to obtain a wanted data signal.

US Patent:

20030091125, May 15, 2003

Filed:

Nov 13, 2001

Appl. No.:

10/012997

Inventors:

Jack Glas - Basking Ridge NJ, US
Vladimir Prodanov - New Providence NJ, US

International Classification:

H03K009/00

US Classification:

375/316000

Abstract:

A system and method for limiting and filtering a combined signal is provided. An embodiment of the system comprises at least one soft limiter and filter that soft limits and filters the combined signal to output a soft limited and filtered signal. An embodiment of the method comprises soft limiting and filtering the combined signal to output the soft limited and filtered signal.

US Patent:

60492481, Apr 11, 2000

Filed:

Dec 23, 1998

Appl. No.:

9/220980

Inventors:

Jack Glas - Somerset NJ
Hongmo Wang - Somerset NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H03F 338

US Classification:

330 10

Abstract:

A circuit for receiving an input signal having a phase component and an amplitude component which carry information, and for producing an output driver signal containing the phase and amplitude component information for driving a non-linear amplifier for generating linear amplification. The circuit includes a voltage controlled oscillator for receiving the phase component and for outputting a phase modulated carrier signal having a duty cycle and a constant amplitude. A driver stage made from a plurality of invertors, each having a pair of MOSFET transistors, receives the carrier signal at the gate terminals of the transistors. The amplitude component is used to drive the invertors by applying the amplitude component to the backgate terminals of at least some of the transistors in the invertors to pulse width modulate the carrier signal. The resulting output signal containing both phase component information and amplitude component information can then be used to drive a non-linear Class S amplifier to generate linear amplification while achieving high efficiency.

US Patent:

6330290, Dec 11, 2001

Filed:

Sep 25, 1998

Appl. No.:

9/161164

Inventors:

Jack P. Glas - Basking Ridge NJ

Assignee:

Lucent Technologies, Inc. - NJ

International Classification:

H04B 112

US Classification:

375324

Abstract:

In a communications terminal that has an image reject mixing arrangement, a compensation system provides compensation for phase and amplitude imbalances, which are caused by a demodulating local oscillator employed in the communications terminal. The image reject mixing arrangement comprises a radio-frequency (RF) mixing stage including an in-phase and a quadrature phase branch, which is configured to receive a radio frequency signal and down convert the radio frequency signal to in-phase and quadrature phase intermediate frequency (IF) signals. It also includes a phase splitter unit coupled to the radio-frequency (RF) mixing stage and configured to provide an in-phase local oscillator signal and a quadrature phase local oscillator signal to the RF mixing stage. The phase splitter causes an amplitude imbalance signal. DELTA. and a phase imbalance signal. phi.