Kenneth Lee Everett

US Patent:

6882514, Apr 19, 2005

Filed:

Sep 9, 2002

Appl. No.:

10/237822

Inventors:

Charles Mutunga - Duluth GA, US
Kenneth Everett - Hoschton GA, US

Assignee:

Arris International, Inc. - Suwanee GA

International Classification:

H02H001/00

US Classification:

361119, 361118

Abstract:

A circuit for protecting a plurality of tip/ring SLIC cards during over current or over voltage conditions. A diode pair corresponding to each tip/ring pair provides positive voltage over voltage protection in a negative powering scheme. Two thyristors provide negative over voltage protection. Tip conductors of half of the SLICs connect to the cathode of one of the thyristors. The ring conductors corresponding to each of these tips connects to the cathode of the other, or second, thyristor. The remaining tips are connected to the cathode of the second thyristor. The rings corresponding to these remaining tips connect to the cathode of the first thyristor. This alternating connection of tips and rings provides twice the current capacity of a single thyristor, while cutting in half the potential holding current through either of the thyristors, thus increasing the likelihood of automatic return to normal operation following cessation of negative over voltage.

US Patent:

7233660, Jun 19, 2007

Filed:

May 5, 2003

Appl. No.:

10/430860

Inventors:

Kenneth Wayne Everett - Hoschton GA, US
Bruce McClelland - Alpharetta GA, US

Assignee:

Arris International, Inc. - Suwanee GA

International Classification:

H04M 1/00

US Classification:

379413, 37939901

Abstract:

Current to a relay causes a telephone to be connected to a SLIC. Following LOOP, a sleep switch opens to interrupt current to the power supply converter after a first predetermined period expires. If the telephone is on-hook, loss of current to the relay causes disconnection from the SLIC, but causes connection to a battery. Current sensed from the battery through an off-hook hook switch generates a current signal. The current signal closes a current switch, which is in parallel with the open sleep switch, thereby providing a current path to the converter. The sleep switch then makes and then the current switch breaks. After awakening, a ring-back signal informs a user that telephony service has been restored and a message may indicate that telephony service is being sought. When the telephone is placed back on-hook, counting of a second predetermined period starts, after which the sleep switch opens again.

US Patent:

7480378, Jan 20, 2009

Filed:

Dec 20, 2002

Appl. No.:

10/324321

Inventors:

Kenneth Wayne Everett - Hoschton GA, US

Assignee:

Arris International, Inc. - Suwanee GA

International Classification:

H04M 1/00
H04M 9/00

US Classification:

37941301

Abstract:

A voltage controller increases a DC input voltage in response to a ring instruction received from a processor in a control signal. The increased voltage is converted to an AC ring signal that causes a telephone to ring. The ring signal voltage is generated at a battery high node (“V”) and may be routed to a SLIC before being sent to an on-hook telephone. The voltage at Vis kept low during off-hook and other periods when a ring instruction is not present. Thus, voltages internal to an indoor device that houses the controller are kept below a predetermined safe threshold, thereby allowing the periods of high voltage to be deemed as transient. Accordingly, if the device is unearthed, or not grounded to the earth, the device may nevertheless obtain listing by a certifying and testing organization without being subjected to abnormal testing and possible failure thereof.