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Donald K Leimer

from Rancho Palos Verdes, CA
Age ~78
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Also known as:
Don Leimer, Doris Leimer
Phone and address:
28710 King Arthur Ct, Palos Verdes Estates, CA 90275
(310) 377-0209
Related to:
Doris Vanessa Leimer, 77Sallie Isobel Moffat, 47Susan Moffat, 49Rustine LeimerAvril Moffat, 74
Connected to:
Diane Leimer, 87Gerald W Leimer, 81Karen A Leimer, 64Aundrea L Leimgardt, 55Jeffrey A Leimgruber, 75Peter E Leimkuehler, 46Andrew F Leimkuhler, 49Jon P Leimkuhler, 73Joseph M Leimkuhler, 65Stacy P Leimkuhler, 40

Donald Leimer Phones & Addresses

  • 28710 King Arthur Ct, Rancho Palos Verdes, CA 90275 (310) 377-0209
  • Palos Verdes Peninsula, CA
  • Rancho Park, CA
  • Palo Verde, CA
  • Rch Palos Vrd, CA
  • 5 Moonmist Dr, Rancho Palos Verdes, CA 90275 (310) 377-0209

Work

Position: Food Preparation and Serving Related Occupations

Education

Degree: Associate degree or higher

Resumes

Resumes

Donald Leimer Photo 1

Donald Leimer

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Location:
United States

Publications

Us Patents

Spread-Spectrum Gmsk/M-Ary Radio

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US Patent:
6430212, Aug 6, 2002
Filed:
Mar 9, 2000
Appl. No.:
09/522393
Inventors:
Jalal Alisobhani - Corona Del Mar CA
Donald K. Leimer - Rancho Palos Verdes CA
Richard Kai-Tuen Woo - Orange CA
Mark Philip Kaplan - Culver City CA
Assignee:
Navcom Technology, Inc. - Redondo Beach CA
International Classification:
H04B 1707
US Classification:
375141, 375142, 375145, 375149, 375150
Abstract:
A communication device includes a transmitter and receiver. The transmitter includes an M-ary encoder configured to generate an M-1 number of distinctive symbols each comprising k bits. M is equal to 2 and k is a positive integer. The transmitter also includes a code generator configured to produce spread spectrum codeword sequences based on the symbols generated by the M-ary encoder and based on a first and a second Gold code polynomials. The transmitter sends a radio signal based on the spread spectrum codeword sequences. The receiver is configured to receive the radio signal. The receiver includes a first shift register configured to receive an input signal generated based on the received radio signal and a second shift register configured to receive and circularly shift a locally generated codeword sequence that is identical to the codeword sequence used to encode the symbols. The receiver also includes an accumulator coupled to the first and second shift registers and configured to multiply and accumulate stored values in the first and second shift registers each time the second shift register is circularly shifted and a selecting device coupled to the accumulator and configured to identify one symbol from the plurality of symbols based on outputs from the accumulator. A method corresponding to the device is also provided.

Adaptive Array Antenna Nulling

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US Patent:
6486828, Nov 26, 2002
Filed:
Jul 26, 2000
Appl. No.:
09/626203
Inventors:
Charles R. Cahn - Manhattan Beach CA
Donald Leimer - Rancho Palos Verdes CA
Assignee:
Western Multiplex - Long Beach CA
International Classification:
H01Q 2106
US Classification:
342363, 342383, 4552781, 455296
Abstract:
An adaptive antenna array employs selective polarization nulling and spatial nulling to receive desired signals in the presence of jamming signals. The desired signals have the same circular polarization, and the array includes at least one antenna element having an opposite circular polarization to null jamming signals having an opposite circular polarization. A gain pattern for the array is selected to minimize signals having the same circular, or linear, polarization. The gain pattern is computed based on jamming signals received when no desired signals are transmitted, or selected based on measured desired signals.

Memory Efficient Ofdm Channel Estimation And Frequency Domain Diversity Processing

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US Patent:
7466778, Dec 16, 2008
Filed:
Dec 21, 2006
Appl. No.:
11/614590
Inventors:
Sharath Ananth - Oceanside CA, US
Sanjai Kohli - Manhattan Beach CA, US
Mark Alan Sturza - Encino CA, US
Donald Leimer - Rancho Palos Verdes CA, US
Assignee:
SiRF Technology, Inc. - San Jose CA
International Classification:
H04L 1/02
H04B 7/08
US Classification:
375347, 455132
Abstract:
A frequency domain diversity DVB receiver device includes multiple antenna ports for receiving radio signals, and radio signal processing circuits connected to the antenna ports that convert the received radio signals into digital samples. The digital samples from the different antenna ports time-share a front-end processor which processes the digital samples to provide time-domain symbols. The time-domain symbols are stored in time-domain symbol buffers according to which of the antenna ports the time-domain symbols are received. A fast fourier transform circuit then retrieves the time-domain symbols and converts them frequency-domain symbols, which are then stored one or more frequency-domain symbol buffers according to the antenna ports the corresponding radio signals are received. A diversity processor which combines the frequency-domain symbols from the frequency-domain symbol buffers.

Method Of Estimating Doppler Spread And Signal-To-Noise Ratio Of A Received Signal

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US Patent:
7889780, Feb 15, 2011
Filed:
Jan 2, 2007
Appl. No.:
11/619178
Inventors:
Donald Leimer - Rancho Palos Verdes CA, US
Assignee:
Sirf Technology, Inc. - San Jose CA
International Classification:
H04B 1/00
US Classification:
375147, 375136, 375142, 375150, 375316, 375346, 375354
Abstract:
A method for estimating a Doppler spread and a signal-to-noise ratio of a received signal includes: (a) calculating one or more functions of a carrier component of the received signal at a first time point relative to a pilot signal embedded in the received signal; (b) Calculating the one or more functions of the carrier component of the received signal at a second time point relative to the pilot signal; (c) repeating steps (a) and (b) over multiple time periods, each time period being substantially longer than the second time, and accumulating the one or more functions for the first time points and the second time points; and (d) Deriving the Doppler spread and the signal-to-noise ration based on the accumulated one or more functions calculated at the first and second time points. In one embodiment, the first time point is substantially closer to the pilot signal than the second time point. The first time point is one symbol interval from the pilot signal.

System And Method For Operating A Gps Device In A Micro Power Mode

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US Patent:
8188917, May 29, 2012
Filed:
Mar 30, 2009
Appl. No.:
12/414612
Inventors:
Steven A. Gronemeyer - Cedar Rapids IA, US
Sanjai Kohli - Manhattan Beach CA, US
Mark A. Sturza - Encino CA, US
Donald K. Leimer - Rancho Palos Verdes CA, US
Assignee:
CSR Technology Holdings Inc. - Sunnyvale CA
International Classification:
G01S 19/34
G01S 19/24
G01S 19/23
US Classification:
34235774, 34235762, 34235763
Abstract:
A wireless device including a transceiver that utilizes a power supply is described. The wireless device includes a Global Positioning System (“GPS”) section having a plurality of GPS subsystems and a power controller in signal communication with the power supply and GPS section, wherein the power controller is configured to selectively power each GPS subsystem from the plurality of GPS subsystems.

Hybrid Wireless Communication System

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US Patent:
20030021271, Jan 30, 2003
Filed:
Apr 3, 2001
Appl. No.:
09/825323
Inventors:
Donald Leimer - Rancho Palos Verdes CA, US
Charles Cahn - Manhattan Beach CA, US
Steven Chen - Cerritos CA, US
James Luecke - Mission Viejo CA, US
Adam Efron - Los Angeles CA, US
International Classification:
H04L012/56
US Classification:
370/390000, 370/535000
Abstract:
A wireless network of multiple base stations, each communicating with multiple remote terminals, exhibiting simpler design and enhanced inter-user and inter-base interference rejection. The downlink from a base to the multiple remote terminals employs a combination of time division multiplexing (TDM) and time division multiple access (TDMA) to multiplex signals carrying data to the remote terminals, and spreads the multiplexed signal with a pseudo-random noise (PN) sequence. The uplink from each remote terminal to the respective base uses orthogonal code division multiple access (O-CDMA) coding to multiplex a variable number of channels for each remote terminal. Short O-code sequences are derived based on pseudo-random maximal length sequences and quadratic residue sequences to introduce sufficient randomness into the multiple access coding to reject inter-base interference without the use of PN signal spectrum spreading.

Multi-Standard Multi-Rate Filter

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US Patent:
20070156800, Jul 5, 2007
Filed:
Dec 15, 2006
Appl. No.:
11/611542
Inventors:
Mark Sturza - Encino CA, US
Donald Leimer - Rancho Palos Verdes CA, US
International Classification:
G06F 17/10
US Classification:
708300000
Abstract:
A method is provided for decimating a digital signal by a factor of M and matching it to a desired channel bandwidth. The method applies the digital signal input samples to a (M−1) stage tapped delay line, downsamples the input samples and the output samples of each tapped delay line stage by a factor of M, and applies each of the M downsampled sample value streams to M allpass IRR filters, respectively. The M allpass IRR filtered sample streams are then summed and scaled by a factor of 1/M. The result can then be filtered by a digital channel filter.

Always On Gps Device

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US Patent:
20110205115, Aug 25, 2011
Filed:
Dec 31, 2008
Appl. No.:
12/347857
Inventors:
Steven A. Gronemeyer - Cedar Rapids IA, US
Mark A. Sturza - Encino CA, US
Donald Leimer - Rancho Palos Verdes CA, US
Sanjai Kohli - Manhattan Beach CA, US
Assignee:
SiRF Technology, Inc. - San Jose CA
International Classification:
G01S 19/34
US Classification:
34235774
Abstract:
A wireless device including a transceiver that utilizes a power supply is described. The wireless device includes a Global Positioning System (“GPS”) section having a plurality of GPS subsystems and a power controller in signal communication with the power supply and GPS section, wherein the power controller is configured to selectively power each GPS subsystem from the plurality of GPS subsystems.
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Donald K Leimer from Rancho Palos Verdes, CA, age ~78 Get Report