Michael G Mclaughlin

Address:

222 Country Clb Dr, Greenville, NC 27834

VIN:

5FNYF28517B021447

Make:

HONDA

Model:

PILOT

Year:

2007

US Patent:

48051934, Feb 14, 1989

Filed:

Jun 4, 1987

Appl. No.:

7/058201

Inventors:

Michael McLaughlin - Palatine IL
Phillip D. Rasky - Glenview IL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04B 1306

US Classification:

375 27

Abstract:

A digital communication system for transmission and reception of speech signals and utilizing sampling, filtering and sub-band coding techniques for reduction of the bit rate. The energy levels of each sub-band are determined with respect to the band having the maximum energy level. The energy level information is encoded and divided into protected and unprotected bits. Only the protected bits are used for the determination of the bit allocation of the sample information, but both protected and unprotected bits are utilized in reconstituting the original levels of the bands.

US Patent:

45493111, Oct 22, 1985

Filed:

Mar 20, 1985

Appl. No.:

6/714063

Inventors:

Michael J. McLaughlin - Hoffman Estates IL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04B 708

US Classification:

455277

Abstract:

An improved method and apparatus for measuring the strength of a radio frequency (RF) signal subject to Rayleigh fading is described. The strength of the RF signal is sampled two or more times during a predetermined time interval and the sampled signal strength having the largest magnitude is selected. The selected signal strength is a reasonably accurate measure of the signal strength since the true average strength of a Rayleigh fading signal is close to its peak signal strength. The inventive method and apparatus is particularly well adapted for use in a scanning receiver located in a base station radio of a cellular radiotelephone communications system. The scanning receiver includes an antenna selector for selecting one of a plurality of sector antennas, an RF signal receiver tunable to a plurality of different RF signal frequencies, an analog-to-digital converter for converting RF signal strength samples to a binary data signal, and a microprocessor together with peripheral devices for controlling the operation of the antenna selector, RF signal receiver and analog-to-digital converter.

US Patent:

56872437, Nov 11, 1997

Filed:

Sep 29, 1995

Appl. No.:

8/536231

Inventors:

Michael J. McLaughlin - Palatine IL
Tenkasi V. Ramabadran - Naperville IL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04B 1500

US Classification:

381 943

Abstract:

A signal that includes noise (301) is sampled to provide a plurality of digital information samples (303). A predetermined number of the digital information samples are grouped as a set (305). Noise suppression is performed on the signal using the following steps. One or more digital representations of silence is attached to the set, forming an extended set (401). A Fourier transform is performed on the extended set, yielding a set of frequency domain coefficients (403), at least some of which are scaled (405). An inverse Fourier transform is performed on the set of scaled frequency domain coefficients to provide a set of time domain samples (407), which are partially overlapped in time and added with a previously formed set of time domain samples (409 and 411), which result is provided with the non-overlapping time domain samples as a noise suppressed version of the signal (413).

US Patent:

48316245, May 16, 1989

Filed:

Apr 4, 1988

Appl. No.:

7/177300

Inventors:

Michael J. McLaughlin - Palatine IL
Phillip D. Rasky - Buffalo Grove IL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

G06F 1110

US Classification:

371 37

Abstract:

A method and apparatus is disclosed for improving the quality of speech samples communicated via sub-band coding utilizing adaptive bit allocation, by providing error detection only on the adaptive bit allocation information. A first error detection code, such as a cyclic redundancy check (CRC), is calculated on the bit allocation parameters in the transmitter and sent to the receiver, where a second error detection code is calculated based upon the reconstructed bit allocation parameters. The transmitted error detection code is then used to determine if the received bit allocation information is correct, and if not, the frame of speech data is discarded. By protecting only the bit allocation information, additional speech frames may be salvaged from the error-prone channel, thus further increasing speech intelligibility.