James P Dougherty

US Patent:

6870902, Mar 22, 2005

Filed:

Mar 21, 2002

Appl. No.:

10/103031

Inventors:

Brian Edward Angliss - Northglenn CO, US
James Michael Dougherty - Highlands Ranch CO, US

Assignee:

Carrier Access Corporation - Boulder CO

International Classification:

H04M001/24

US Classification:

379 2706, 379 2602, 379 2701, 379 101, 379 22

Abstract:

Customer services terminal input connected between telephone exchange and outputs. Interface circuits provide service between input and outputs Test means applies test conditions to interface circuits and/or to outputs associated with the interface circuits, and/or to ring/tip pairs associated with interface circuits, and/or to telephone lines associated with interface circuits Other interface circuits service input to other outputs Test means analog-to-digital converter includes reference input, analog measuring input, ground potential input, and test output Normally de-energized calibration relay has normally-closed switches and normally-open switches. Normally-closed switch connects reference voltage to reference input. Another normally-closed switch connects analog measuring input to test means generated voltage. Calibration switching means energizes calibration relay to connect analog measuring input to reference voltage via normally-open switch, to connect reference input to source of ground potential via another normally-open switch to generate calibration output useful for determining test results output when calibration relay is de-energized.

US Patent:

6870903, Mar 22, 2005

Filed:

Mar 21, 2002

Appl. No.:

10/103476

Inventors:

Brian Edward Angliss - Northglenn CO, US
James Michael Dougherty - Highlands Ranch CO, US

Assignee:

Carrier Access Corporation - Boulder CO

International Classification:

H04M001/24

US Classification:

379 2706, 379 2602, 379 2701, 379 101, 379 22

Abstract:

A telecommunications system includes a telephone exchange and a customer services terminal whose input is connected to the telephone exchange, and whose plural outputs are individually connected to one of a plurality of telephone lines. A plurality of interface circuits within the customer services terminal are individually connected intermediate the input and one of the plural outputs. Self-test means provides for the testing of selected interface circuits. Loop-test means provides for the testing of selected telephone lines. A self-test relay is responsive to the self-test means and operates to disconnect the selected outputs from corresponding telephone lines as self-test conditions are applied to selected interface circuits as these interface circuits are disconnected from the selected telephone lines. The loop test means applies loop-test conditions to selected interface circuits, while the selected interface circuits and the corresponding outputs remain connected to the corresponding telephone lines. In either case, other interface circuits, outputs, and telephone lines that are not undergoing test remain operative to supply telecommunications services between the telephone exchange and these other telephone lines.

US Patent:

6879603, Apr 12, 2005

Filed:

Jan 28, 2000

Appl. No.:

09/493312

Inventors:

Roger L. Koenig - Boulder CO, US
Tim P. Groth - Lakewood CO, US
Matthew D. Morris - Boulder CO, US
James Michael Dougherty - Highlands Ranch CO, US
Gordon K. Francis - Louisville CO, US

Assignee:

Carrier Access Corporation - Boulder CO

International Classification:

H04J003/02
H04L012/50
H04Q011/00

US Classification:

370535, 370537, 370361, 370373, 370376, 370384

Abstract:

A technique for performing a time slot interchange in a processor. The TSI process is surrounded by a multiplexing/demultiplexing circuit for converting a plurality of PCM highways into a single input serial data stream. The mux/demux circuit includes elastic stores to align frames and shift resisters to mux/demux with a minimum of delay. The TSI processor includes an input and an output buffered series port, a pair of input buffers, one to receive even-numbered frames from the PCM highways and one to receive odd-numbered frames, and an output buffer. Data is read from the appropriate input buffer in a non-sequential fashion as commanded by the processor in accordance with information stored in connection arrays (address buffers). The data is then written to the output buffer sequentially. The timing of the reading and writing steps is optimized relative to free running buffered serial port pointers for each BSP to reduce the frame delay.

US Patent:

61011983, Aug 8, 2000

Filed:

Dec 3, 1996

Appl. No.:

8/760103

Inventors:

Roger L. Koenig - Boulder CO
Tim P. Groth - Lakewood CO
Matthew D. Morris - Boulder CO
James Michael Dougherty - Highlands Ranch CO
Gordon K. Francis - Louisville CO

Assignee:

Carrier Access Corporation - Boulder CO

International Classification:

H04J 302
H04J 322
H04J 304

US Classification:

370535

Abstract:

A technique for performing a time slot interchange in a processor. The TSI process is surrounded by a multiplexing/demultiplexing circuit for converting a plurality of PCM highways into a single input serial data stream. The mux/demux circuit includes elastic stores to align frames and shift resisters to mux/demux with a minimum of delay. The TSI processor includes an input and an output buffered serial port, a pair of input buffers, one to receive even-numbered frames from the PCM highways and one to receive odd-numbered frames, and an output buffer. Data is read from the appropriate input buffer in a non-sequential fashion as commanded by the processor in accordance with information stored in connection arrays (address buffers). The data is then written to the output buffer sequentially. The timing of the reading and writing steps is optimized relative to free running buffered serial port pointers for each BSP to reduce the frame delay.

US Patent:

20140107914, Apr 17, 2014

Filed:

Oct 14, 2013

Appl. No.:

14/052963

Inventors:

James Toole - Centennial CO, US
James Dougherty - Elizabeth CO, US

International Classification:

G06F 7/00

US Classification:

701300

Abstract:

Systems, methods, and software for determining proximity to a utility and using the location information of the utility are provided herein. In one example, a non-transitory computer readable medium having stored thereon program instructions executable by a computing device is presented. When executed by the computing device, the program instructions direct the computing device to receive an indication of location of a utility, receive location information of a device, determine utility proximity information, and provide an indication of utility proximity information. The utility location information may then be used with map and other information, or used to control grading operations.