IP Library Granted Patent US 7,441,120
Granted Patent B2
US 7,441,120 · App. 11/058,402 · Granted Oct 21, 2008

Telecommunications device and method

Assignee: CopyTele, Inc.
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Quick Facts
Patent No.
US 7,441,120
App. No.
11/058,402
Granted
Oct 21, 2008
Kind
B2
Abstract

A method for selectively enhancing a voice telephone call from a first location to a second location over a public switched telephone network, including receiving audio signals from a conventional telephone using a first device positioned at the first location; and, in a first mode, passing the received audio signals to the public switched telephone network in a substantially unaltered manner; and, in a second mode, generating data indicative of the received audio signals using the first device; multiplexing the generated data with other data desired to be communicated using the first device; and, transmitting the multiplexed data over the public switched telephone network; wherein, the transmitted data is suitable for being received from the public switched telephone network and de-multiplexed to generate reproduced audio signals indicative of the received audio signals and the other data by a second like device.

Claims (11)

1. A method for selectively enhancing a voice telephone call from a first location to a second location over a public switched telephone network, comprising receiving audio signals from a conventional telephone using a first device positioned at said first location; and,

in a first mode, passing said received audio signals to said public switched telephone network in a substantially unaltered manner; and,

in a second mode, generating data indicative of said received audio signals using said first device; multiplexing said generated data with other data desired to be communicated using said first device; and, transmitting said multiplexed data over said public switched telephone network; wherein, said transmitted data is suitable for being received from said public switched telephone network and de-multiplexed to generate reproduced audio signals indicative of said received audio signals and said other data by a second like device.

2. The method of claim 1 , wherein said transmitted data is unencrypted.

3. A method for enhancing a voice telephone call from a first location to a second location over a public switched telephone network, comprising:

receiving audio signals from a conventional telephone using a first device positioned at said first location;

generating data indicative of said received audio signals using said first device;

multiplexing said generated data with other data desired to be communicated using said first device;

encrypting said multiplexed data; and,

transmitting said encrypted data over said public switched telephone network,

wherein, said transmitted data is suitable for being received from said public switched telephone network, decrypted and de-multiplexed to generate reproduced audio signals indicative of said received audio signals and said other data by a second like device.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 18, 2014
From: ITUS CORPORATION
To: SECURE WEB CONFERENCE CORPORATION
Reel/Frame 034538/0871 →
CHANGE OF NAME Recorded Oct 29, 2014
From: COPYTELE, INC.
To: ITUS CORPORATION
Reel/Frame 034095/0469 →
Continuity (3)
Continuation 1009681100 · Mar 13, 2002
Continuation In Part 0933694800 · Jun 21, 1999
Related Publication 20050223215A1 · Oct 6, 2005