Richard B Mcdowell

US Patent:

6353664, Mar 5, 2002

Filed:

Dec 1, 1997

Appl. No.:

08/980824

Inventors:

Joseph M. Cannon - Harleysville PA
James A. Johanson - Emmaus PA
Richard Lawrence McDowell - Chalfont PA

Assignee:

Agere Systems Guardian Corp. - Orlando FL

International Classification:

H04M 156

US Classification:

3791421, 379 8821, 379 9323, 37914206

Abstract:

Customer premises telephone equipment and methods are provided for identifying a calling partys telephone number, household name, and city and/or state location, to a called party. The equipment and method includes one or more directories containing city and state location information corresponding to a complete listing of all area codes an local exchanges throughout a selected calling region or country. A receiver receives an incoming telephone number of an incoming telephone call and a comparator compares the received incoming telephone number with the directory or directories containing the city and state location information to identify a city and state location associated with the incoming telephone number. The equipment includes a display for displaying the incoming telephone call number, the household name, and/or the city and state location associated with the incoming call.

US Patent:

6466787, Oct 15, 2002

Filed:

Mar 17, 1999

Appl. No.:

09/270521

Inventors:

Joseph M. Cannon - Harleysville PA
Richard Lawrence McDowell - Chalfont PA
Philip David Mooney - North Wales PA

Assignee:

Agere Systems Guardian Corp. - Orlando FL

International Classification:

H04M 1100

US Classification:

455434, 455462, 455463, 455464, 455426

Abstract:

Methods and devices are provided for overcoming interference which occurs when one or more cordless devices seek to communicate over the same range of narrow band channels. Any one of a number of algorithms not based on channel clarity may be utilized to order groups of available channels which surround a cordless device. The device then selects a channel from within the ordered group of channels to assure clear communications between a cordless telephone handset and base. The algorithm may be randomly selected from among a number of algorithms or may be selected by other means.

US Patent:

6490434, Dec 3, 2002

Filed:

Aug 31, 1999

Appl. No.:

09/386515

Inventors:

Jeffrey Paul Grundvig - Macungie PA
Richard Lawrence McDowell - Chalfont PA
Philip David Mooney - North Wales PA
James Skorko - Allentown PA

Assignee:

Agere Systems, Inc. - Allentown PA

International Classification:

H04Q 732

US Classification:

455 671, 455423, 455425, 455572, 455573, 455462

Abstract:

Systems and methods utilize cradle contacts for completing diagnostic tests of rechargeable devices, such as cordless telephones. A cordless telephone handset or base is placed into a test fixture. Once the handset or base is cradled, diagnostic message signals are transmitted through cradle contacts in the test fixture and handset/base. The message signals may be made up of ASK signals. The beginning and end of each test may be identified by a code or codes embedded in a message signal. The use of cradle contacts to complete diagnostic tests alleviates problems associated with use of internal test access ports to carry out such tests.

US Patent:

6498935, Dec 24, 2002

Filed:

Apr 19, 1999

Appl. No.:

09/293850

Inventors:

Joseph M. Cannon - Harleysville PA
Richard L. McDowell - Chalfont PA
Philip D. Mooney - North Wales PA

Assignee:

Agere Systems Inc. - Allentown PA

International Classification:

H04Q 720

US Classification:

455464, 455426, 455462

Abstract:

When a plurality of cordless telephones (e. g. , digital cordless telephones) are used within range of one another, base units of one or more of the digital cordless telephones may receive transmissions from others of the digital cordless telephones. Conventionally, the base unit would simply ignore information relating to that received from an unintended remote handset, i. e. , a remote handset having a security code which fails to match that of the receiving base unit. However, in accordance with the principles of the present invention, information regarding the unique security code received with respect to other remote handsets (i. e. , those having security codes which do not match that of the receiving base unit), are logged and used in a way which provides a unique best available channel list to each of the digital cordless telephones so that similar digital cordless telephones operating in a similar environment do not attempt selection of channels in a similar way (causing channel inclarity and/or interference). In a first embodiment, the list of best available channels is randomized based on the unique security code of the relevant digital cordless telephone. In a second embodiment, the list of best available channels is randomized only when another digital cordless telephone becomes within transmission range of the relevant digital cordless telephone.

US Patent:

6587694, Jul 1, 2003

Filed:

Sep 24, 1999

Appl. No.:

09/404807

Inventors:

Philip D. Mooney - North Wales PA
Richard L. McDowell - Chalfont PA
Jeffrey P. Grundvig - Macungie PA
Jian Wu - Macungie PA

Assignee:

Agere Systems Inc. - Allentown PA

International Classification:

H04L 2730

US Classification:

455502, 455462, 370357

Abstract:

Clocks between at least two wireless devices are synchronized to reduce the need to transmit synchronization signals over a wireless communication channel therebetween. Two wireless devices synchronize their respective clocks with each other when each are electrically coupled, e. g. , during a cradle time when brought into physical contact with each other through charge contacts, e. g. , to recharge a remote portable unit. The charge signal appearing at the charge contacts is driven to create a time duration marked by a start transition and an end transition in the charge signal. The number of clock pulses of each of the two wireless devices during the time duration is counted, and compared to determine the difference in clock speeds of the wireless devices. The frequency of the clock of at least one of the wireless devices is adjusted to bring the difference in the clock speeds within a predetermined threshold tolerance level.

US Patent:

6606353, Aug 12, 2003

Filed:

Jul 20, 1999

Appl. No.:

09/357327

Inventors:

Richard L. McDowell - Chalfont PA
Philip D. Mooney - North Wales PA

Assignee:

Agere Systems Inc. - Allentown PA

International Classification:

H04B 1700

US Classification:

375224

Abstract:

The present invention provides a circuit arrangement and technique for detecting any of a plurality of positions of a multi-position switch using a single input pin of a digital input/output device. Two specific embodiments are described relating to the use of a multi-position switch using a single digital input/output (DIO). In the first embodiment, a multi-position switch switches between various clock signals (e. g. , pre-existing clock signals) on a circuit board, and inputs the same to the relevant pin of the. DIO device. In a variation of this embodiment, a second multi-position switch is connected in series with the first multi-position switch and varies the selected signal in a detectable and distinguishable way, e. g. , by inverting or not inverting the signal selected by the first multi-position switch. In another embodiment, a multi-position switch switches between nodes of a series chain of resistors to produce a change to an RC circuit that will respond differently to a step change to the input depending upon the position of the multi-position switch.

US Patent:

6650874, Nov 18, 2003

Filed:

Nov 23, 1999

Appl. No.:

09/447286

Inventors:

Somnath Banik - Allentown PA
Joseph M. Cannon - Harleysville PA
Eric J. Diethorn - Washington Township, Morris County NJ
Jeffrey P. Grundvig - Macungie PA
James A. Johanson - Macungie PA
Richard L. McDowell - Chalfont PA
Philip D. Mooney - North Wales PA
Jian Wu - Macungie PA

Assignee:

Agere Systems, Inc. - Allentown PA

International Classification:

H04B 100

US Classification:

455 71, 4554261

Abstract:

A method and apparatus to perform a real-time drift correction of a remote handsets local oscillator in a digital cordless telephone. The remote handset begins in a standby (sniff) mode. The remote handset periodically wakes from a sleep mode and goes into a normal link verification mode. Once in the link verification mode, the remote handset enters a time division duplexing (TDD) mode and attempts to establish a link with a base unit based on the timing of the TDD data frame. After the remote handset establishes a link with the base unit, the remote handset requests a security word from the base unit. Upon receiving the requested security word, the remote handset determines if the requested security word matches a security word of the remote handset. The remote handset implements a software frequency adjustment of its local oscillator. Once per frame, the remote handset enters a timing recovery state where the current state of the frame is compared with a previous state.

US Patent:

6674331, Jan 6, 2004

Filed:

Nov 9, 2001

Appl. No.:

09/986669

Inventors:

Richard L. McDowell - Chalfont PA

Assignee:

Agere Systems, Inc. - Allentown PA

International Classification:

H03L 700

US Classification:

331 16, 331 23, 331183, 332128, 455260

Abstract:

A method and apparatus are disclosed for tuning a voltage controlled oscillator (VCO) having two point modulation used in a phase lock loop modulation system. A loop correction voltage applied to a first modulation input of the VCO when a first modulation signal, e. g. , +1, is applied to a second modulation input of the VCO is compared to a loop correction voltage applied to the first modulation input when a second modulation signal, e. g. , -1, is applied to the second modulation input of the VCO. The comparison produces a correction signal used to adjust the signal level of at least one of the signals, e. g. , the second modulation input signal, applied to the two modulation inputs of the VCO.