Walter J Kaminski

US Patent:

6574459, Jun 3, 2003

Filed:

Apr 14, 2000

Appl. No.:

09/549919

Inventors:

Walter Joseph Kaminski - Long Valley NJ
Arild Kolsrud - Bridgewater NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04B 700

US Classification:

455272, 455269, 455266, 455275

Abstract:

A receiver provides received analog signals to a plurality of channel branches, and on at least one of the channel branches, the frequency of the received analog signals is adjusted independent of the relative positions of the corresponding analog signals in the radio frequency (RF) spectrum. The analog signals on the channel branches are then combined, and the combined analog signals are converted into the digital domain. For example, the receiver comprises at least one antenna(s) which receives radio frequency (RF) analog signals. A channel branch arranger receives the analog RF signals from the antenna(s) and provides the RF analog signals to a plurality of channel branches. A frequency conversion arrangement comprising at least one frequency converter on at least a respective one of the channel branches adjusts the frequency band of the analog RF signals on the respective channel branch independent of the relative positions of the corresponding analog signals in the RF spectrum of the different channel branches. The analog signals on the channel branches are combined, and a single analog to digital converter converts the combined analog signals into digital signals. In converting the composite analog signals into the digital domain, the frequency bands of the analog signals are positioned in a plurality of Nyquist zone channels in the digital domain.

US Patent:

6678512, Jan 13, 2004

Filed:

Apr 14, 2000

Appl. No.:

09/548995

Inventors:

Walter Joseph Kaminski - Long Valley NJ
Arild Kolsrud - Bridgewater NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04B 116

US Classification:

455334, 455323, 375136, 375147, 375316

Abstract:

A receiver receives analog signals at radio frequency (RF), and the RF analog signals are converted into the digital domain. As such, the receiver does not require frequency conversion stage(s) prior to analog to digital conversion. For example, the receiver can comprise at least one antenna(s) which receives radio frequency (RF) analog signals at different frequency bands. The analog RF signals are provided to a single analog to digital (A/D) converter, and the A/D converter converts the analog RF signals at the different frequency bands into digital signals within the Nyquist bandwidth. By properly selecting the sampling rate of the A/D converter for the RF analog signals, the A/D converter can produce replicas of the different frequency bands of the analog signals in non-overlapping portions of the Nyquist bandwidth.

US Patent:

6944238, Sep 13, 2005

Filed:

Feb 16, 2001

Appl. No.:

09/784846

Inventors:

Julio Antonio Garceran - Randolph NJ, US
Walter Joseph Kaminski - Long Valley NJ, US
Arild Kolsrud - Bridgewater NJ, US

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04L027/20
H04K001/02

US Classification:

375295, 375297, 375146

Abstract:

A digital transmitter converts a digital signal into analog form with a digital to analog converter (DAC) and uses an analog signal image produced from the DAC to provide an analog signal at a transmission frequency and/or uses a projected analog signal image to produce analog signals for transmission. Rather than removing analog signal images with a low pass filter at the output of the DAC and/or using analog signal images and analog mixers for frequency conversion, the digital transmitter uses the analog signal images from the DAC to produce the analog signals at the desired frequency/frequencies. By setting and/or adjusting the conversion rate for the DAC and/or the digital signal frequency/frequencies, the analog signal images produced from the DAC can be positioned in the desired frequency band(s). For example, the digital transmitter can position the digital signals within non-overlapping portions of a conversion bandwidth defined as one-half the conversion rate for the DAC. When the digital signals are converted into analog form, the DAC produces analog signal images periodically repeated at multiples of one-half the conversion rate such that analog signal images are produced at the appropriate frequency band(s) for amplification and transmission.

US Patent:

63203006, Nov 20, 2001

Filed:

Sep 3, 1998

Appl. No.:

9/146482

Inventors:

Walter J. Kaminski - Long Valley NJ
Arild Kolsrud - Parsippany NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H01L 4104

US Classification:

310328

Abstract:

Piezoelectric crystals are arranged to function as variable resonators. In one embodiment, three crystals are arranged as an array, with a center crystal between two outer crystals. An electrical excitation of the outer crystals causes a mechanical displacement in the crystals along a common axis. This displacement squeezes the center crystal, resulting in a shift of the crystal's resonant frequency. By this arrangement, signals input to the outer crystals vary the resonant properties of the inner crystal.

US Patent:

61475726, Nov 14, 2000

Filed:

Jul 15, 1998

Appl. No.:

9/115690

Inventors:

Walter J. Kaminski - Long Valley NJ
Arild Kolsrud - Parsippany NJ

Assignee:

Lucent Technologies, Inc. - Murray Hill NJ

International Classification:

H01P 1213
H01P 120
H01Q 1522

US Classification:

333134

Abstract:

A filter including an enclosure, a dielectric material within the enclosure, at least two microstrip antennas within the enclosure, and at least one frequency selective surface including a metallic pattern. The frequency selective surface is utilized to filter an electromagnetic signal propagated within the enclosure. The geometry of the antennas and the frequency selective surfaces as well as the resonant frequencies of the frequency selective surfaces determine whether the filter is a bandpass, bandstop, notched, or combination filter. If the frequency selective surface is omitted, the combination acts as a delay circuit for delaying the electromagnetic signal, where the time delay is a function of the dielectric constant of the dielectric material.