Inventor

David E. Borth

Inventor

Palatine, IL, US

Overview

29→

Patents

1986–2000

Patent span

Electricity

Primary field (CPC H)

Patents· 29 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Bprimary

H04BTransmission25%

H04LTransmission of digital information, e.g. telegraphic communication23%

H04WWireless communication networks13%

G10LSpeech analysis techniques or speech synthesis8%

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers7%

H03GControl of amplification3%

H03JTuning resonant circuits3%

H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses3%

H03MCoding3%

G10KSound-producing devices2%

PatentTitleYear

6,111,923'System and method for calculating a state transition metric in a viterbi equalizer'2000 5,878,324'Method and system for distribution of wireless digital multimedia signals in a cellular pattern'1999 5,737,327'Method and apparatus for demodulation and power control bit detection in a spread spectrum communication system'1998 5,712,868'Dual mode communication network'1998 5,574,973'Method of registering/-reassigning a call in a dual mode communication network'1996 5,392,300'Dual mode radio communication unit'1995 5,381,443'Method and apparatus for frequency hopping a signalling channel in a communication system'1995 5,379,324'System and method for calculating channel gain and noise variance of a communication channel'1995 5,301,364'Method and apparatus for digital automatic gain control in a receiver'1994 5,276,685'Digital automatic gain control'1994 5,263,052'Viterbi equalizer for radio receiver'1993 5,233,632'Communication system receiver apparatus and method for fast carrier acquisition'1993 5,214,675'System and method for calculating channel gain and noise variance of a communication channel'1993 5,144,644'Soft trellis decoding'1992 5,142,551'Signal weighting system for digital receiver'1992 5,133,010'Method and apparatus for synthesizing speech without voicing or pitch information'1992 5,121,412'All-digital quadrature modulator'1992 4,910,470'Digital automatic frequency control of pure sine waves'1990 4,887,050'Frequency control apparatus and method for a digital radio receiver'1989 4,873,683'TDMA radio system employing BPSK synchronization for QPSK signals subject to random phase variation and multipath fading'1989 4,852,090'TDMA communications system with adaptive equalization'1989 4,847,869'Rapid reference acquisition and phase error compensation for radio transmission of data'1989 4,829,543'Phase-coherent TDMA quadrature receiver for multipath fading channels'1989 4,775,851'Multiplierless decimating low-pass filter for a noise-shaping A/D converter'1988 4,737,976'Hands-free control system for a radiotelephone'1988 4,723,288'Stereo decoding by direct time sampling'1988 4,630,304'Automatic background noise estimator for a noise suppression system'1986 4,630,305'Automatic gain selector for a noise suppression system'1986 4,628,529'Noise suppression system'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–2000Patents assigned to MOTOROLA INC (29)· patent assignee history

1986–2000Based in Palatine, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MOTOROLA INC	29	1986–2000

Locations

Location	Patents	Span
Palatine, Illinois, US	29	1986–2000