System for providing analog and digital telephone functions using a single telephone line
First Claim
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1. A communication apparatus, comprising:
- a first telephone line interface to couple to a public access telephone system;
an analog-to-digital converter coupled to the first telephone line interface;
an analog module coupled to the analog-to-digital converter, the analog module comprising;
a first signal processor;
a first memory coupled to the first signal processor;
an audio speaker coupled to the first signal processor; and
a microphone coupled to the first signal processor;
a second memory coupled to the first signal processor;
a digital module coupled to the second memory and coupled to an the first telephone line interface through an analog front end, the digital module comprising;
a second signal processor comprising a broadband modem; and
a third memory coupled to the second signal processor;
a computer interface coupled to the first signal processor and coupled to the second signal processor; and
a user module coupled to the analog module, the user module comprising a keypad and a display.
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Abstract
An improved telecommunication device for simultaneous and independent communication of analog signals and digital data is disclosed. Processing of analog signals enables functions including, for example, message saver, speakerphone, caller identification and fax. Processing of digital data enables functions, including, for example, DSL modem communications, digital voice communications, video communications, and voice-over-data communications. The disclosed system may operate independently or coupled to one or more computers.
40 Citations
6 Claims
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1. A communication apparatus, comprising:
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a first telephone line interface to couple to a public access telephone system;
an analog-to-digital converter coupled to the first telephone line interface;
an analog module coupled to the analog-to-digital converter, the analog module comprising;
a first signal processor;
a first memory coupled to the first signal processor;
an audio speaker coupled to the first signal processor; and
a microphone coupled to the first signal processor;
a second memory coupled to the first signal processor;
a digital module coupled to the second memory and coupled to an the first telephone line interface through an analog front end, the digital module comprising;
a second signal processor comprising a broadband modem; and
a third memory coupled to the second signal processor;
a computer interface coupled to the first signal processor and coupled to the second signal processor; and
a user module coupled to the analog module, the user module comprising a keypad and a display. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification
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Current AssigneeMulti-Tech Systems Incorporated
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Original AssigneeMulti-Tech Systems Incorporated
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InventorsDavis, Jeffrey P.
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Primary Examiner(s)Ramakrishnaiah, Melur
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Application NumberUS09/481,429Time in Patent Office958 DaysField of Search379/90.01, 379/93.02, 379/93.08, 379/93.09, 379/93.28, 379/88.13, 379/88.23, 379/142, 370/420, 370/484, 370/208, 370/210, 370/490, 370/493, 370/494, 370/495, 375/222US Class Current379/93.02CPC Class CodesH04L 12/66 Arrangements for connecting...
