CA2289716A1 - Method and apparatus for reducing signal processing requirements for transmitting packet-based data with a modem - Google Patents

Method and apparatus for reducing signal processing requirements for transmitting packet-based data with a modem Download PDF

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Publication number
CA2289716A1
CA2289716A1 CA002289716A CA2289716A CA2289716A1 CA 2289716 A1 CA2289716 A1 CA 2289716A1 CA 002289716 A CA002289716 A CA 002289716A CA 2289716 A CA2289716 A CA 2289716A CA 2289716 A1 CA2289716 A1 CA 2289716A1
Authority
CA
Canada
Prior art keywords
analog signal
receiver circuit
signal bursts
modem
telephone line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002289716A
Other languages
French (fr)
Other versions
CA2289716C (en
Inventor
Larry C. Yamano
John T. Holloway
Edward H. Frank
Tracy D. Mallory
Alan G. Corry
Craig S. Forrest
Kevin H. Peterson
Timothy B. Robinson
Dane Snow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Broadcom Corp
Original Assignee
Epigram, Inc.
Larry C. Yamano
John T. Holloway
Edward H. Frank
Tracy D. Mallory
Alan G. Corry
Craig S. Forrest
Kevin H. Peterson
Timothy B. Robinson
Dane Snow
Broadcom Homenetworking, Inc.
Broadcom Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Epigram, Inc., Larry C. Yamano, John T. Holloway, Edward H. Frank, Tracy D. Mallory, Alan G. Corry, Craig S. Forrest, Kevin H. Peterson, Timothy B. Robinson, Dane Snow, Broadcom Homenetworking, Inc., Broadcom Corporation filed Critical Epigram, Inc.
Publication of CA2289716A1 publication Critical patent/CA2289716A1/en
Application granted granted Critical
Publication of CA2289716C publication Critical patent/CA2289716C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0435—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/10—Current supply arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13034—A/D conversion, code compression/expansion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13107—Control equipment for a part of the connection, distributed control, co-processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13174—Data transmission, file transfer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1319—Amplifier, attenuation circuit, echo suppressor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13199—Modem, modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13204—Protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13209—ISDN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13291—Frequency division multiplexing, FDM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13292—Time division multiplexing, TDM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13294—CDMA, code division multiplexing, i.e. combinations of H04Q2213/13291 and/or H04Q2213/13292 with space division
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13396—Signaling in general, in-band signalling

Abstract

A modem and method for operating same. A receiver circuit of the modem is coupled to receive a continuous analog signal from a communication channel.
This analog signal includes both packet and idle information. The receiver circuit monitors the analog signal to detect the presence of idle information.
Upon detecting idle information, the receiver circuit enters a standby mode in which the processing requirements of the receiver circuit are reduced. A burst mode protocol is also provided, in which packets of digital information are modulated by a transmitter circuit of the modem, thereby converting the packets of digital information into analog signal bursts of discrete duration.
These analog signal bursts are transmitted from the transmitter circuit to a telephone line. However, the transmitter circuit does not generate any signals between the analog signal bursts. A receiver circuit monitors the telephone line to detect the analog signal bursts. Upon detecting the presence of the analog signal bursts on the telephone line, the receiver circuit demodulates the analog signal bursts using full processing capabilities of the receiver circuit. However, upon detecting the absence of the analog signal bursts on the telephone line, the demodulating function of the receiver circuit is disabled. The burst mode protocol enables multi-drop and multi-cast operation, as well as reducing required DSP resources.
CA002289716A 1997-05-09 1998-05-08 Method and apparatus for reducing signal processing requirements for transmitting packet-based data with a modem Expired - Fee Related CA2289716C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/853,683 US6075814A (en) 1997-05-09 1997-05-09 Method and apparatus for reducing signal processing requirements for transmitting packet-based data with a modem
US08/853,683 1997-05-09
PCT/US1998/009207 WO1998051067A1 (en) 1997-05-09 1998-05-08 Method and apparatus for reducing signal processing requirements for transmitting packet-based data with a modem

Publications (2)

Publication Number Publication Date
CA2289716A1 true CA2289716A1 (en) 1998-11-12
CA2289716C CA2289716C (en) 2003-07-22

Family

ID=25316648

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002289716A Expired - Fee Related CA2289716C (en) 1997-05-09 1998-05-08 Method and apparatus for reducing signal processing requirements for transmitting packet-based data with a modem

Country Status (8)

Country Link
US (5) US6075814A (en)
EP (1) EP0980626B1 (en)
JP (1) JP3441080B2 (en)
AT (1) ATE375680T1 (en)
AU (1) AU737040B2 (en)
CA (1) CA2289716C (en)
DE (1) DE69838545T2 (en)
WO (1) WO1998051067A1 (en)

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US7406119B2 (en) 2008-07-29
JP3441080B2 (en) 2003-08-25
AU7472298A (en) 1998-11-27
JP2000515713A (en) 2000-11-21
US20090046769A1 (en) 2009-02-19
EP0980626A1 (en) 2000-02-23
US20020181571A1 (en) 2002-12-05
DE69838545T2 (en) 2008-07-24
DE69838545D1 (en) 2007-11-22
US6304596B1 (en) 2001-10-16
US6445731B1 (en) 2002-09-03
ATE375680T1 (en) 2007-10-15
AU737040B2 (en) 2001-08-09
EP0980626B1 (en) 2007-10-10
WO1998051067A1 (en) 1998-11-12
US6075814A (en) 2000-06-13
CA2289716C (en) 2003-07-22

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