Mark A Mckinnon

US Patent:

7062242, Jun 13, 2006

Filed:

Aug 2, 2002

Appl. No.:

10/209944

Inventors:

Miguel Dajer - Succasunna NJ, US
Edward Ellis Eibling - Convent Station NJ, US
Mark Y. McKinnon - Howell NJ, US

Assignee:

Lucent Technologies Inc. - Murray Hill DE

International Classification:

H04B 1/06
H04B 7/00

US Classification:

4552321, 4552772, 315371, 348497

Abstract:

A DPRAM is placed in the RF path before the digital to analog converter, to provide dynamic path gain compensation to the digital signal prior to conversion to an analog signal. The DPRAM stores corrections to the signal to compensate for amplitude losses in the signal arising from heat and non-linearities. The DPRAM has two sets of identical addresses. A logic switch, alternately directs an input signal to one of the two sets of addresses. Pre-calculated signal values which compensate for path gain are stored in one of the two sets of addresses in the DPRAM. The signal input to the DPRAM is directed to the other block. The value of the signal input to the DPRAM will determine the address to which the new value can be found. It is this new value which is actually input to the DAC and from which an analog signal is created. The updated values written to the DPRAM are the signal values with path gain compensation that is independently calculated and applied to the RF signal by a Dynamic Path Gain Compensation Controller (“DPGCC”).

US Patent:

7333567, Feb 19, 2008

Filed:

Dec 23, 2003

Appl. No.:

10/744750

Inventors:

Zhengxiang Ma - Summit NJ, US
Mark Y. McKinnon - Morganville NJ, US

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04L 27/00
H04B 3/46

US Classification:

375316, 375206, 375228

Abstract:

A digital detector processes at least one received digital signal to generate a squared signal, encodes the squared signal, applies first and second portions of the encoded signal to a multiplier and a look-up element, respectively, and processes outputs of the multiplier and look-up element to generate a detector output signal representative of a power level of the received digital signal. In an illustrative embodiment, the digital detector is configured so as to exhibit a waveform dependence substantially the same as that of an analog logarithmic amplifier detector. The digital detector and analog logarithmic amplifier detector are utilizable in a closed-loop gain control arrangement for providing a desired gain for a signal path of a base station transmitter in a wireless communication system.

US Patent:

20030060179, Mar 27, 2003

Filed:

Aug 2, 2002

Appl. No.:

10/209942

Inventors:

Miguel Dajer - Succasunna NJ, US
Edward Eibling - Convent Station NJ, US
Mark McKinnon - Howell NJ, US

Assignee:

Lucent Technologies, Inc.

International Classification:

H04B001/06

US Classification:

455/277200, 455/561000

Abstract:

A DPRAM is placed in the RF path before the digital to analog converter, to provide dynamic path gain compensation to the digital signal prior to conversion to an analog signal. The DPRAM stores corrections to the signal to compensate for amplitude losses in the signal arising from heat and non-linearities. The DPRAM has two sets of identical addresses. A logic switch, alternately directs an input signal to one of the two sets of addresses. Pre-calculated signal values which compensate for path gain are stored in one of the two sets of addresses in the DPRAM. The signal input to the DPRAM is directed to the other block. The value of the signal input to the DPRAM will determine the address to which the new value can be found. It is this new value which is actually input to the DAC and from which an analog signal is created. The updated values written to the DPRAM are the signal values with path gain compensation that is independently calculated and applied to the RF signal by a Dynamic Path Gain Compensation Controller (“DPGCC”). The DPGCC may apply any known algorithms to compute the path gain compensation and adjust the signal accordingly. In one advantageous embodiment the DPGCC accounts for thermal losses and non-linearity and takes into consideration overdrive protection constraints.

US Patent:

6507732, Jan 14, 2003

Filed:

Sep 14, 1999

Appl. No.:

09/396829

Inventors:

Miguel Dajer - Succasunna NJ
Edward Ellis Eibling - Convent Station NJ
Mark Y. McKinnon - Howell NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04B 106

US Classification:

4552772, 375345

Abstract:

A DPRAM is placed in the RF path before the digital to analog converter, to provide dynamic path gain compensation to the digital signal prior to conversion to an analog signal. The DPRAM stores corrections to the signal to compensate for amplitude losses in the signal arising from heat and non-linearities. The DPRAM has two sets of identical addresses. A logic switch, alternately directs an input signal to one of the two sets of addresses. Pre-calculated signal values which compensate for path gain are stored in one of the two sets of addresses in the DPRAM. The signal input to the DPRAM is directed to the other block. The value of the signal input to the DPRAM will determine the address to which the new value can be found. It is this new value which is actually input to the DAC and from which an analog signal is created. The updated values written to the DPRAM are the signal values with path gain compensation that is independently calculated and applied to the RF signal by a Dynamic Path Gain Compensation Controller (âDPGCCâ).