Ronald Lee Sharp

US Patent:

53032403, Apr 12, 1994

Filed:

Jul 8, 1991

Appl. No.:

7/727031

Inventors:

Jaime A. Borras - Hialeah FL
Thomas V. D'Amico - Boca Raton FL
Ronald E. Sharp - Plantation FL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

G01S 372

US Classification:

370 953

Abstract:

A communication system 100 for determining the optimum direction (206) for transmitting and receiving a signal in a radio comprises a receiver for receiving a carrier signal being a time divided signal having an instruction signal, a transmitter for transmitting a time divided signal, a directional antenna (10) coupled to said receiver and transmitter, and a steering device (28) for changing the phase of the carrier signal in accordance with the instruction signal.

US Patent:

53254058, Jun 28, 1994

Filed:

Aug 27, 1991

Appl. No.:

7/750373

Inventors:

Paul D. Marko - Ft. Lauderdale FL
David L. Brown - Miami FL
Jaime A. Borras - Hialeah FL
Ronald E. Sharp - Plantation FL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04L 700

US Classification:

375114

Abstract:

A transceiver (100) is provided for transmitting during the transmission bursts (12) of a frame and receiving during the receiving time-slot windows (14). The transceiver (100) includes a receiver (320) for receiving a repeating radio frequency data (16) signal at any time within the receiving time-slot window (14) and for demodulating the repeating radio frequency data signal down to a baseband data signal. A data detector and clock recovery device (330) recovers the valid data (CHMP) from the baseband data signal. For controlling the receiver (320) and data detector and clock recovery device (330), a control circuit (400) modifies the receiving time-slot windows (14) to only receive and detect when valid data is expected (52).

US Patent:

50777904, Dec 31, 1991

Filed:

Dec 31, 1990

Appl. No.:

7/635405

Inventors:

Thomas V. D'Amico - Baco Raton FL
Ronald E. Sharp - Plantation FL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04K 100
H04M 1100

US Classification:

380 23

Abstract:

A method for registration of a portable unit that may be utilized in a communication system that comprises a network controller, having a data base for storing portable identification numbers, a base station, and a portable unit, wherein a subscriber communicates to the network controller a first information set which comprises subscriber qualifying information, the portable identification number, and a key code that has been entered into the portable, and wherein the subscriber has entered a link identification number for over-the-air registration into a memory within the portable unit. The registration method comprises the following steps. The portable unit sends the base station a request for registration. The request for registration comprises the link identification number for over-the-air registration and the portable identification number. The base station receives the request for registration from the portable unit, and sends to the network controller a notice of the request for registration and the portable identification number.

US Patent:

40216535, May 3, 1977

Filed:

Oct 14, 1975

Appl. No.:

5/621711

Inventors:

Ronald Edward Sharp - Lauderhill FL
David Frank Willard - Plantation FL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

G01R 2302
G01R 2314

US Classification:

235152

Abstract:

An improved detection arrangement for detecting the presence of a given tone in a received input signal. A reference generator, in the form of a reference clock and a programmable divider, produces a first reference frequency, equal to the frequency of the tone, and at an arbitrary phase angle thereto. A second generator output is in quadrature to the first. Each reference signal is product detected with the input signal via exclusive OR gates. A unique digital low pass filter, operating in a time multiplex mode, receives the gate outputs, removes all high frequency components therefrom, and produces pairs of output binary number encoded signals, each of which is representative of a vector component of a detected tone. Threshold detector circuitry monitors the outputs indicating an above threshold condition at its output in response to predetermined combinations of the binary numbers. The combinations represent all input vectors whose resultant absolute magnitude exceeds a chosen threshold.

US Patent:

54086930, Apr 18, 1995

Filed:

Dec 24, 1991

Appl. No.:

7/812994

Inventors:

Kenneth D. Alton - Coral Springs FL
Ronald E. Sharp - Plantation FL
Mark S. Stuglik - Margate FL
David L. Brown - Miami FL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04B 116

US Classification:

455212

Abstract:

A radio communication device (10) comprises a radio transceiver (12), having a received signal strength indicator (RSSI) (16), an audio section (22), and a controller (16) for deactivating the audio section whenever the RSSI indicates the the received signal strength is below a predetermined threshold. The controller also operates as a counter (26) for indicating the length of time that the received signal strength has been below the predetermined threshold.

US Patent:

54024480, Mar 28, 1995

Filed:

Feb 10, 1994

Appl. No.:

8/194760

Inventors:

Paul D. Marko - Ft. Lauderdale FL
David L. Brown - Miami FL
Jaime A. Borras - Hialeah FL
Ronald E. Sharp - Plantation FL

Assignee:

Motorola Inc. - Schaumburg IL

International Classification:

H03D 100

US Classification:

375340

Abstract:

A transceiver (100) is provided for transmitting during the transmission bursts (12) of a frame and receiving during the receiving time-slot windows (14). The transceiver (100) includes a receiver (320) for receiving a repeating radio frequency data (16) signal at any time within the receiving time-slot window (14) and for demodulating the repeating radio frequency data signal down to a baseband data signal. A data detector and clock recovery device (330) recovers the valid data (CHMP) from the baseband data signal. For controlling the receiver (320) and data detector and clock recovery device (330), a control circuit (400) modifies the receiving time-slot windows (14) to only receive and detect when valid data is expected (52).

US Patent:

43815529, Apr 26, 1983

Filed:

Nov 18, 1980

Appl. No.:

6/208101

Inventors:

Ronald E. Sharp - Sunrise FL
Emilio J. Cuadra - Miami FL

Assignee:

Motorola Inc. - Schaumburg IL

International Classification:

G06F 1300
G06F 100
G11C 700

US Classification:

364900

Abstract:

Logic circuitry in a portable electronic device is combined with the microprocessor to reduce power consumption in the microprocessor and its associated memories during inactive periods of the device, with periodic sampling for inputs from peripherals or received data which would require active operation of the device.

US Patent:

52652700, Nov 23, 1993

Filed:

Jun 3, 1991

Appl. No.:

7/709044

Inventors:

Robert E. Stengel - Ft. Lauderdale FL
Ronald E. Sharp - Plantation FL
Francis R. Yester - Arlington Heights IL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04B 116

US Classification:

455343

Abstract:

A communication device 200 capable of operating in a communication system 100 having a control system which generates information signals with redundant information is disclosed. The communication device comprises: a receiver 214 for receiving the information signals; a circuit which can determine the signal quality of the received information signals 234; and a controller 226 which decodes the received information signals, and further compares the signal quality of the information signals with a predetermined value, and decides if the received signal quality is at least equal to the predetermined value in order to only decode a portion of the information signal. Upon the communication device decoding a portion of the information signal, the communication device 200 is placed in a battery saving mode in order to conserve battery life.