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Lester R Querry

from Clarksburg, MD
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Related to:
Angela M Querry, 59Marty Anne Hiatt, 79Cheryl L Querry, 59Randall P Querry, 62Cynthia Alsaffar, 52Cheryl QuerryRenate M Alsaffar, 84Querryr Q Miersemann, 84Mary V SchreiberHelen E SchreiberJane A Schreiber, 68
Connected to:
Bridget Querry, 36Chris Querry, 58Karen Querry, 65Linda C Querry, 78Michael Querry, 46Paul A Querry, 64Randy D Querry, 66Ross G Querry, 60Steve K Querry, 58Neal T Quersher, 45

Lester Querry Phones & Addresses

  • Clarksburg, MD

Professional Records

License Records

Lester R Querry

License #:
RS064360A - Expired
Category:
Real Estate Commission
Type:
Real Estate Salesperson-Standard

Publications

Us Patents

Electronic Apparatus For Providing Player Performance Feedback

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US Patent:
57572666, May 26, 1998
Filed:
Jun 17, 1996
Appl. No.:
8/665266
Inventors:
Alan J. Rider - Reston VA
Lester R. Querry - Reston VA
Stephen Landsman - Baltimore MD
International Classification:
A63B 6100
US Classification:
340323R
Abstract:
An electronic system for incorporation in a racquet that monitors a player's ability to hit balls within a specific region on the string bed. A plurality of sensors are positioned around the periphery of the racquet string bed for detecting the relative time-of-arrival of transverse waves produced by impacts of balls on the string bed. A circuit incorporated within the racquet receive the signals from the sensors and provide a plurality of signals from which the position of impact on the string bed may be calculated. The system incorporates a low power microprocessor that is programmed to compute the ball impact location from the signals produced by the sensors. A display device on the racquet displays information derived from the calculated impact location to permit players to assess their performance as related to hitting a predetermined region. A sound generator is incorporated that emits audible signals having an amplitude, frequency and duty cycle that indicate relative positions of impact on the string bed. The system provides for statistical reporting of impacts as either percentages within a zone or a total tally of impacts.

System For Locating Multiple Concealed Underground Objects

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US Patent:
53610296, Nov 1, 1994
Filed:
Jun 22, 1992
Appl. No.:
7/902525
Inventors:
Alan J. Rider - Reston VA
Lester R. Querry - Reston VA
Assignee:
The Charles Machine Works, Inc. - Perry OK
International Classification:
G01V 311
G01V 3165
G01R 1900
H04B 102
US Classification:
324326
Abstract:
An improved locator system is provided which simultaneously couples a number of different frequency signals to a number of concealed underground conductive lines, for the purpose of locating and distinguishing between the underground lines. The locator system includes a transmitter which generates the different frequency signals for coupling to the underground lines. A receiver is also provided that detects the different frequency signals and distinguishes between the underground lines. The locator system further provides an arrangement for operating at virtually any frequency within the locating band, and for preselecting an operating frequency that avoids interference from extraneous signals.

Preprogrammed Autodialer And Related Process

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US Patent:
49411721, Jul 10, 1990
Filed:
Feb 9, 1989
Appl. No.:
7/307941
Inventors:
Jacob J. Winebaum - Washington DC
Alan J. Rider - Reston VA
Lester R. Querry - Reston VA
Assignee:
U.S. News - Washington DC
International Classification:
H04M 126
US Classification:
379355
Abstract:
An automatic telephone number dialing service for use with mass-distribution media products to enable consumers to automatically dial a preprogrammed number associated with one or more sources of goods and/or services. The device may be constructed as an insert for, or attachment to, various media such as magazines, books, direct mail advertising, newspapers and the like. The device may also be constructed as a customized service card for accessing sources of products or services. The preprogrammed number may be that of a centralized, automated, or personal telemarketing system. The dialing device includes a single chip microprocessor capable of producing DTMF tones corresponding to the preprogrammed telephone. By passing the tones through a miniature speaker or other sound transducer, the preprogrammed number will be automatically dialed. A related telemarketing process using the device is also disclosed.

Locator Equipment With Self-Integrity Test Capability

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US Patent:
55415164, Jul 30, 1996
Filed:
Jul 26, 1993
Appl. No.:
8/097388
Inventors:
Alan J. Rider - Reston VA
Lester R. Querry - Reston VA
Assignee:
The Charles Machines Works, Inc. - Perry OK
International Classification:
G01V 311
G01V 365
G01N 313187
G01N 3500
US Classification:
324326
Abstract:
The present invention generally relates to a system for use in determining the location and orientation of concealed underground objects and, more particularly, to an improved locator system having a unique and improved interface with an operator. In accordance with one embodiment of the invention, a magnetic field detector for locating concealed underground objects is provided. The magnetic field detector includes a housing having an upper housing portion and a lower housing portion. A receiver is disposed within said housing for receiving magnetic field signals from the concealed underground objects. A swivel joint couples the upper housing portion and the lower housing portion to permit relative rotational motion.

Phase Demodulator With Offset Frequency Reference Oscillator

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US Patent:
40428842, Aug 16, 1977
Filed:
Feb 20, 1975
Appl. No.:
5/551079
Inventors:
Lester R. Querry - Laurel MD
Assignee:
Rixon, Inc. - Silver Spring MD
International Classification:
H03D 306
H04L 2722
US Classification:
329122
Abstract:
A phase-locked demodulator for demodulating a phase-difference modulated carrier having a repeated phase offset increment introduced therein. The demodulator includes, in common with conventional phase locked demodulators, a mixer having a first input connected to receive the modulated carrier and a reference carrier generator such as a voltage controlled oscillator (VCO) connected in a phase-locked feedback loop forming the second input to the mixer. In order to reduce the number of output levels, the VCO is tuned to a frequency Fr=Fc. +-. Fb[(. alpha. )/360] where Fc is the carrier frequency, Fb is the baud rate and. alpha. is the repeated phase offset. In this way the phase offset increment introduced into the modulated carrier is substantially cancelled out thereby leaving only the phase changes containing data information.

Locator Transmitter Having An Automatically Tuned Antenna

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US Patent:
52313557, Jul 27, 1993
Filed:
Jun 18, 1990
Appl. No.:
7/539552
Inventors:
Alan J. Rider - Reston VA
Lester R. Querry - Reston VA
Assignee:
The Charles Machine Works, Inc. - Perry OK
International Classification:
G01V 311
G01V 3165
H04B 500
H03J 302
US Classification:
324326
Abstract:
The present invention generally relates to a system for use in determining the location and orientation of concealed underground objects and, more particularly, to an improved locator system having a unique and improved interface with an operator. In accordance with one embodiment of the invention, a magnetic field detector for locating concealed underground objects is provided. The magnetic field detector includes a housing having an upper housing portion and a lower housing portion. A receiver is disposed within said housing for receiving magnetic field signals from the concealed underground objects. A swivel joint couples the upper housing portion and the lower housing portion to permit relative rotational motion.

Phase Locked Loop With Automatic Sweep

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US Patent:
42064201, Jun 3, 1980
Filed:
Nov 13, 1978
Appl. No.:
5/960394
Inventors:
Lester R. Querry - Laurel MD
Ajay Parikh - Gaithersburg MD
Assignee:
Digital Communications Corporation - Gaithersburg MD
International Classification:
H03B 304
US Classification:
331 4
Abstract:
An improved phase-locked loop includes a phase detector, active loop filter and a VCO, in conventional phase-locked loop relationship. In addition, a positive feedback path couples active loop filter output to active loop filter input. In the absence of loop lock, the positive feedback provided by the positive feedback path satisfies the conditions necessary for the production of an oscillating output from the active loop filter circuit. The oscillating output generated by this "oscillator" drives the VCO in a sweeping action allowing the loop to acquire signals outside of its normal capture range. On capture, phase detector output provides an additional negative feedback path which overrides the effect of the positive feedback path and therefore, oscillations cease and the loop locks. The positive feedback path can comprise a relatively simple passive frequency selective circuit.

Directional Psk Modulation And Demodulation System

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US Patent:
41745051, Nov 13, 1979
Filed:
Apr 26, 1978
Appl. No.:
5/900535
Inventors:
Lester R. Querry - Laurel MD
Assignee:
Digital Communications Corporation - Gaithersburg MD
International Classification:
H04L 2720
H04L 2722
US Classification:
332 9R
Abstract:
A direction phase shift keyed communication system provides the capacity to transmit any one of two symbols for each modulation level. The modulator produces a substantially constant frequency signal which includes a phase transistion in respect of each information bit. In a system with a single modulation level, corresponding to a phase transistion. phi. , one of the two symbols is represented by a phase transition +. phi. , i. e. , an advancing phase transition. The other symbol is represented by a phase transition -. phi. , i. e. , a retarding phase transition. A demodulator responds to a substantially constant frequency signal with a phase transition included, and produces an output signal of a first kind in response to an advancing phase transition +. phi. and an output signal of a second kind in response to a retarding phase transistion -. phi. The system is capable of operating with multiple modulation levels, each of which can represent any one of two symbols, depending on the sense, i. e.
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Lester R Querry from Clarksburg, MD Get Report