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Northern Telecom Limited Patents |
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Assignee: Northern Telecom Limited
Address: Montreal, CA
No. of patents: 2192
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| RE34206 |
Method and apparatus for timing recovery |
March 30, 1993 |
| In a receiver for a loop interface of a digital data transmission system, a received four-level substantially randomized digital signal is sampled and a multilevel slicer compares the samples selectively with a plurality of thresholds to extract the symbols. A timing recovery circuit det |
| RE30715 |
Water blocked electric cables |
August 18, 1981 |
| An electric cable having a multi-stranded core of insulated conductors and a jacket, in which the spaces between and around the conductors are at least partially filled with a mixture which forms a blockage to the penetration of water. The mixture comprises water repellant treated ca |
| RE30692 |
Method and apparatus for measuring telephone line characteristics |
July 28, 1981 |
| A method and apparatus for deriving thirteen distinct parameters of a telephone line from current and charge flow measurements on each side of the line, taken during only three successive voltage states applied to both sides thereof through known tip and ring resistors. The derivations |
| D425517 |
Container for communications equipment |
May 23, 2000 |
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| D418074 |
Signal coupler unit |
December 28, 1999 |
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| D413021 |
Container for communications equipment |
August 24, 1999 |
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| D411534 |
Internet telephone |
June 29, 1999 |
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| D410645 |
Mobile telephone |
June 8, 1999 |
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| D409594 |
Combined keyboard and keyboard stand |
May 11, 1999 |
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| D408825 |
Telephone handset |
April 27, 1999 |
|
| D408823 |
Telecommunications equipment enclosure |
April 27, 1999 |
|
| D408400 |
Mobile communications device |
April 20, 1999 |
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| D407686 |
Power supply and battery housing |
April 6, 1999 |
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| D400195 |
Computer display with computer-generated icon |
October 27, 1998 |
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| D398927 |
Telephone base station |
September 29, 1998 |
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| D398611 |
Combined wireless antenna and stand |
September 22, 1998 |
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| D398610 |
Wireless antenna |
September 22, 1998 |
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| D396041 |
Wireless antenna stand |
July 14, 1998 |
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| D393468 |
Street cabinet for housing telecommunications equipment |
April 14, 1998 |
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| D392980 |
Module for a telephone |
March 31, 1998 |
|
| D391252 |
Telephone handset |
February 24, 1998 |
|
| D390570 |
Wireless receiver |
February 10, 1998 |
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| D390560 |
Telephone base |
February 10, 1998 |
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| D388434 |
Telephone base and stand |
December 30, 1997 |
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| D388433 |
Telephone base and stand |
December 30, 1997 |
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| D386493 |
Telephone |
November 18, 1997 |
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| D382567 |
Telephone adaptor housing |
August 19, 1997 |
|
| D375739 |
Handheld telephone |
November 19, 1996 |
|
| D372240 |
Telephone base |
July 30, 1996 |
|
| D371360 |
Handheld telephone |
July 2, 1996 |
|
| D364618 |
Telephone basestation |
November 28, 1995 |
|
| D352283 |
Telephone base |
November 8, 1994 |
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| D352032 |
Telephone base |
November 1, 1994 |
|
| D352029 |
Telephone handset |
November 1, 1994 |
|
| D349900 |
Telephone base |
August 23, 1994 |
|
| D349283 |
Wireless basestation |
August 2, 1994 |
|
| D348458 |
Handheld telephone |
July 5, 1994 |
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| D332786 |
Base for a telephone set |
January 26, 1993 |
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| D330368 |
Tray for housing splices and excess lengths of optical fibers |
October 20, 1992 |
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| D330028 |
Base for a telephone set |
October 6, 1992 |
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| D328295 |
Base for a telephone set |
July 28, 1992 |
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| D328072 |
Base for a telephone set or similar article |
July 21, 1992 |
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| D327887 |
Cabinet for a small telephone exchange |
July 14, 1992 |
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| D322784 |
Base for a telephone set |
December 31, 1991 |
|
| D319435 |
Data display |
August 27, 1991 |
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| D318874 |
Housing for electrical equipment |
August 6, 1991 |
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| D315896 |
Keypad |
April 2, 1991 |
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| D313230 |
Television converter housing |
December 25, 1990 |
|
| D309298 |
Telephone data modem |
July 17, 1990 |
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| D307908 |
Housing for telephonic equipment |
May 15, 1990 |
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