Merle Leroy Keller
Physician in Salt Lake City, UT
License number
Utah 6851459-8905
Issued Date
Jan 12, 2008
Expiration Date
Jan 31, 2012
Category
Physician
Type
Physician/Surgeon CS (Schedule 2-5)
Address
Address
Salt Lake City, UT
Education
UNIVERSITY OF UTAH SCHOOL OF MEDICINE
Personal information
See more information about Merle Leroy Keller at radaris.comName
Address
Phone
575 N Morton Dr, Salt Lake Cty, UT 84116
575 Morton Dr, Salt Lake Cty, UT 84116
575 N Morton Dr, Salt Lake City, UT 84116
S Salt Lake, UT
Professional information
Antenna Boresighting Method
US Patent:
6646598, Nov 11, 2003
Filed:
May 17, 2002
Appl. No.:
10/150606
Inventors:
LaMar K. Timothy - Kaysville UT
Merle L. Keller - Salt Lake City UT
Roy F. Lunsford - Syracuse UT
Merle L. Keller - Salt Lake City UT
Roy F. Lunsford - Syracuse UT
Assignee:
L-3 Communications Corporation - New York NY
International Classification:
H01Q 300
US Classification:
342359
Abstract:
An antenna positioned (with rough alignment) on an aircraft is calibrated in position and orientation relative to the inertial navigation system of the aircraft by measuring the corresponding position and orientation parameters of the aircraft and a reference target relative to the Global Positioning System (GPS) and calculating differences between azimuth and elevation parameters of the target measured by the antenna control system and corresponding roll, pitch and heading parameters measured by the aircraft system, thereby providing bias parameters for the antenna output in the coordinates of the inertial navigation system.
Linear Search System And Method For Determining Psuedo-Noise (Pn) Composite Phase
US Patent:
7190711, Mar 13, 2007
Filed:
Sep 11, 2002
Appl. No.:
10/242146
Inventors:
Merle L. Keller - Salt Lake City UT, US
Vaughn L. Mower - Bountiful UT, US
Dale D. Fonnesbeck - Kaysville UT, US
Vaughn L. Mower - Bountiful UT, US
Dale D. Fonnesbeck - Kaysville UT, US
Assignee:
L-3 Communications Corporation - New York NY
International Classification:
H04B 1/00
US Classification:
375150
Abstract:
A method and system for determining Psuedo-Noise (PN) composite phase is provided. The method includes providing at least three relatively prime PN component codes and partially correlating a received PN composite encoded signal with one of the PN component codes. The method also includes partially correlating the received PN composite encoded signal with a second one of the PN component codes while maintaining phase alignment of the first partially phase aligned PN code through the use of normalized autonomous phase numbers (NAPNs). The received PN composite encoded signal is then phase aligned with a receiver PN composite code phase in steps of epoch lengths of the partially phase aligned PN component codes.
System And Method For Pn Encoded Signal Prioritization And Collision Mitigation
US Patent:
7221665, May 22, 2007
Filed:
Jun 9, 2003
Appl. No.:
10/458430
Inventors:
Vaughn L. Mower - Salt Lake City UT, US
Merle L. Keller - Salt Lake City UT, US
Merle L. Keller - Salt Lake City UT, US
International Classification:
H04B 7/216
US Classification:
370335, 370337, 375150
Abstract:
A system for TDMA-SS signal prioritization and collision mitigation is provided. The system includes a Hub transceiver having plurality of parallel PN correlation branches, wherein each of the plurality of parallel PN correlation branches is prioritized with respect to each of the other plurality of parallel PN correlation branches. The system also includes a first Spoke transmitter adapted to transmit a first prioritized PN encoded signal corresponding to a first one of the first plurality of prioritized parallel PN correlation branches. In addition, a second Spoke transmitter is adapted to transmit a second prioritized PN encoded signal corresponding to a second one of the first plurality of prioritized parallel PN correlation branches.
System And Method For Fast Data Encryption/Decryption Using Time Slot Numbering
US Patent:
7200233, Apr 3, 2007
Filed:
Dec 10, 2002
Appl. No.:
10/316655
Inventors:
Merle L. Keller - Salt Lake City UT, US
Vaughn L. Mower - Bountiful UT, US
Steve J. McEntire - Salt Lake City UT, US
Victor D. Albertini - Salt Lake City UT, US
Vaughn L. Mower - Bountiful UT, US
Steve J. McEntire - Salt Lake City UT, US
Victor D. Albertini - Salt Lake City UT, US
Assignee:
L-3 Communications Corporation - New York NY
International Classification:
H04L 9/00, G06F 11/30, G06F 12/14
US Classification:
380268, 713189
Abstract:
A system for fast data encryption/decryption is provided. The system includes a transmitter system having a transmitter direct digital synthesizer (DDS). The DDS includes at least three transmitter pseudo-noise (PN) component code generators PN, PN, PN, where each transmitter PN component code generator is adapted to generate relatively prime transmitter PN component codes when compared with each of the other transmitter PN component code generators. The transmitter also includes a first processor coupled to the transmitter DDS, where the first processor is adapted to determine a time slot number (TSN) relative to at least two of the relatively prime transmitter PN component codes. Also included in the transmitter is an encryptor for encrypting clear data in accordance with the TSN. The system includes a receiver system having a second processor adapted to determine the TSN; and a decryptor coupled to the second processor. The decryptor is adapted to decrypting the encrypted clear data in accordance with the TSN.
4-Ary Correlator, Matched Filter, And Decoder For Coherent, Direct Sequence, Spread Spectrum Applications
US Patent:
5204875, Apr 20, 1993
Filed:
Jul 9, 1991
Appl. No.:
7/728906
Inventors:
Vaughn L. Mower - Bountiful UT
Merle L. Keller - Salt Lake City UT
Merle L. Keller - Salt Lake City UT
Assignee:
The United States of America as represented by the Secretary of the Air
Force - Washington DC
Force - Washington DC
International Classification:
H04K 100
US Classification:
375 1
Abstract:
A system for decoding an IF signal modulated with 4-ary words generated at a known spreading rate (PN code) comprises a receiver in which four known 4-ary words are generated at the same rate. The system then compares the incoming signals modulated with unknown 4-ary words with each of four known 4-ary words. Only one of the known words will be in phase with a received unknown word. The disclosure describes a system which determines which of the four words is in phase, this being the determinant of the identity of the unknown word.
Communications Reliability In A Hub-Spoke Communications System
US Patent:
8391334, Mar 5, 2013
Filed:
Sep 27, 2010
Appl. No.:
12/891048
Inventors:
Vaughn L. Mower - Bountiful UT, US
Merle L. Keller - Salt Lake City UT, US
Roger Baker - South Jordan UT, US
Merle L. Keller - Salt Lake City UT, US
Roger Baker - South Jordan UT, US
Assignee:
L-3 Communications Corp - New York NY
International Classification:
H04B 1/00, H04W 72/00
US Classification:
375142, 4554561, 4554565, 4554566
Abstract:
Systems and methods for improving the reliability of a hub-spoke communications system use a first antenna and a second antenna at the hub terminal. Spread spectrum transmission from the hub terminal uses the first antenna, and the second antenna is enabled when blockage between the first antenna and any one of the spoke terminals is present. The first antenna and the second antenna have substantially orthogonal polarizations. The spread spectrum transmissions from the first antenna and second antenna have different pseudonoise code timing so that the received transmissions are offset by at least one chip interval from each other.
Radio Frequency Burst Interference Mitigation
US Patent:
2002014, Oct 10, 2002
Filed:
Apr 4, 2001
Appl. No.:
09/826329
Inventors:
Vaughn Mower - Bountiful UT, US
Merle Keller - Salt Lake City UT, US
Albert Hansen - Salt Lake City UT, US
Merle Keller - Salt Lake City UT, US
Albert Hansen - Salt Lake City UT, US
International Classification:
H04L027/00, H04K001/00, H04L027/04, H04L027/14, H04L027/22, H04L027/06, H04L027/30
US Classification:
375/259000, 375/295000, 375/316000, 375/141000
Abstract:
Coherent phase-shift keying (“PSK”) radio frequency (“RF”) systems locate a differential decoder (“DE”) close to the transmitter of a first transceiver for transmitting a message to a second transceiver that includes a receiver having has a differential decoder (“DDE”) close to the receiver to aid in the rapid recovery of remnant data of a message hit by a jamming (“J”) pulse received at the receiver of the second transceiver.
Long Phase-Locked Carrier Recovery Loop
US Patent:
4749960, Jun 7, 1988
Filed:
Apr 10, 1987
Appl. No.:
7/036638
Inventors:
Vaughn L. Mower - Bountiful UT
Merle L. Keller - Salt Lake City UT
Merle L. Keller - Salt Lake City UT
Assignee:
Unisys Corporation - Blue Bell PA
International Classification:
H03L 712
US Classification:
331 4
Abstract:
A long phase-locked loop circuit is provided which has an electronic closure circuit in series in the loop. The loop is effectively an open loop until acquisition of the incoming signal at which time the electronic closure circuit closes the phase-locked loop. A novel coincidence circuit is provided which compares the carrier in the loop with a reference frequency and when the two frequencies are equal the coincidence circuit closes the electronic closure circuit.
System And Method For Detecting Pn Code Phase
US Patent:
7321609, Jan 22, 2008
Filed:
Sep 30, 2003
Appl. No.:
10/675185
Inventors:
Merle L. Keller - Salt Lake City UT, US
Dale D. Fonnesbeck - Kaysville UT, US
Kenneth C. Bark - West Jordan UT, US
Randal R. Sylvester - West Valley UT, US
Dale D. Fonnesbeck - Kaysville UT, US
Kenneth C. Bark - West Jordan UT, US
Randal R. Sylvester - West Valley UT, US
International Classification:
H04B 1/69
US Classification:
375147, 375130
Abstract:
A system for verifying composite pseudo-noise (PN) encoded signals. The system provides at least three PN component codes, wherein the at least three PN component codes are relatively prime. The system partially correlates a received PN composite encoded signal with a first minor epoch derived from the at least three PN component codes. The system searches for phase alignment of the received PN composite encoded signal with a second minor epoch derived from the at least three PN component codes. The system correlates the received PN composite encoded signal with a receiver PN composite code phase when the first minor epoch and the searched second minor epoch are separated by a predetermined phase.
System And Method For Priority Communication Management In A Hybrid Tdma-Ss System
US Patent:
7496080, Feb 24, 2009
Filed:
Jul 14, 2003
Appl. No.:
10/619864
Inventors:
Vaughn L. Mower - Bountiful UT, US
Merle L. Keller - Salt Lake City UT, US
Zachary C. Bagley - Salt Lake City UT, US
Merle L. Keller - Salt Lake City UT, US
Zachary C. Bagley - Salt Lake City UT, US
Assignee:
L-3 Communications - New York NY
International Classification:
H04B 7/212, H04B 7/216, H04L 12/403, H04L 12/43, H04J 3/02
US Classification:
370347, 370335, 370455, 370458, 370461, 370462, 370337, 370342
Abstract:
A method and system for managing Priority Messages in a hybrid TDMA-Spread Spectrum (TDMA-SS) communication system is provided. The method and system include a HUB for generating a HUB TDMA epoch, wherein the HUB TDMA epoch includes at least one Priority Message (PM) slot. The PM slot includes a plurality of assignable PM sub-slots. The method and system also include at least one SPOKE, wherein the at least one SPOKE is adapted to transmit a Priority Message during its assigned PM sub-slot within the HUB TDMA epoch.