AU1238297A - Telephone system with hands-free equipment - Google Patents

Telephone system with hands-free equipment

Info

Publication number
AU1238297A
AU1238297A AU12382/97A AU1238297A AU1238297A AU 1238297 A AU1238297 A AU 1238297A AU 12382/97 A AU12382/97 A AU 12382/97A AU 1238297 A AU1238297 A AU 1238297A AU 1238297 A AU1238297 A AU 1238297A
Authority
AU
Australia
Prior art keywords
hands
telephone system
free equipment
free
equipment
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
AU12382/97A
Other versions
AU709742B2 (en
Inventor
Osamu Sato
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Publication of AU1238297A publication Critical patent/AU1238297A/en
Application granted granted Critical
Publication of AU709742B2 publication Critical patent/AU709742B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
    • H04M1/6041—Portable telephones adapted for handsfree use
    • H04M1/6075—Portable telephones adapted for handsfree use adapted for handsfree use in a vehicle
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/026—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse time characteristics modulation, e.g. width, position, interval
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/3877—Arrangements for enabling portable transceivers to be used in a fixed position, e.g. cradles or boosters

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Function (AREA)
  • Telephonic Communication Services (AREA)
AU12382/97A 1996-01-29 1997-01-29 Telephone system with hands-free equipment Ceased AU709742B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8-13214 1996-01-29
JP1321496A JPH09205480A (en) 1996-01-29 1996-01-29 Connection system for portable telephone and hand-free equipment

Publications (2)

Publication Number Publication Date
AU1238297A true AU1238297A (en) 1997-08-07
AU709742B2 AU709742B2 (en) 1999-09-02

Family

ID=11826914

Family Applications (1)

Application Number Title Priority Date Filing Date
AU12382/97A Ceased AU709742B2 (en) 1996-01-29 1997-01-29 Telephone system with hands-free equipment

Country Status (4)

Country Link
JP (1) JPH09205480A (en)
AU (1) AU709742B2 (en)
GB (1) GB2309851B (en)
HK (1) HK1001450A1 (en)

Also Published As

Publication number Publication date
JPH09205480A (en) 1997-08-05
GB2309851A (en) 1997-08-06
GB9701836D0 (en) 1997-03-19
HK1001450A1 (en) 1998-06-19
AU709742B2 (en) 1999-09-02
GB2309851B (en) 1998-04-08

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired