GB0118200D0 - Audio amplification device for a cellular telephone - Google Patents

Audio amplification device for a cellular telephone

Info

Publication number
GB0118200D0
GB0118200D0 GBGB0118200.5A GB0118200A GB0118200D0 GB 0118200 D0 GB0118200 D0 GB 0118200D0 GB 0118200 A GB0118200 A GB 0118200A GB 0118200 D0 GB0118200 D0 GB 0118200D0
Authority
GB
United Kingdom
Prior art keywords
cellular telephone
amplification device
audio amplification
audio
telephone
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
GBGB0118200.5A
Other versions
GB2365656A (en
GB2365656B (en
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.)
Canhold International Ltd
Original Assignee
Canhold International Ltd
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 Canhold International Ltd filed Critical Canhold International Ltd
Publication of GB0118200D0 publication Critical patent/GB0118200D0/en
Publication of GB2365656A publication Critical patent/GB2365656A/en
Application granted granted Critical
Publication of GB2365656B publication Critical patent/GB2365656B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
    • H04M1/215—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads by non-intrusive coupling means, e.g. acoustic couplers
    • H04M1/2155—Acoustic coupling

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Telephone Set Structure (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
GB0118200A 2000-08-01 2001-07-26 Audio amplification device for a cellular telephone Expired - Fee Related GB2365656B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2000TO000768A IT1320576B1 (en) 2000-08-01 2000-08-01 AUDIO AMPLIFICATION DEVICE FOR A MOBILE PHONE.

Publications (3)

Publication Number Publication Date
GB0118200D0 true GB0118200D0 (en) 2001-09-19
GB2365656A GB2365656A (en) 2002-02-20
GB2365656B GB2365656B (en) 2002-10-09

Family

ID=11457976

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0027042A Withdrawn GB2368745A (en) 2000-08-01 2000-11-03 Amplifier for a loudspeaking mobile phone
GB0118200A Expired - Fee Related GB2365656B (en) 2000-08-01 2001-07-26 Audio amplification device for a cellular telephone

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0027042A Withdrawn GB2368745A (en) 2000-08-01 2000-11-03 Amplifier for a loudspeaking mobile phone

Country Status (4)

Country Link
DE (1) DE10137547A1 (en)
GB (2) GB2368745A (en)
HK (1) HK1030725A2 (en)
IT (1) IT1320576B1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9401340D0 (en) * 1994-01-25 1994-03-23 Jondelius Bjorn K E Mobile telephone extension units
CN1283059A (en) * 2000-08-28 2001-02-07 均豪电子(深圳)有限公司 Handless unit for mobile telephone

Also Published As

Publication number Publication date
ITTO20000768A1 (en) 2002-02-01
ITTO20000768A0 (en) 2000-08-01
IT1320576B1 (en) 2003-12-10
GB2365656A (en) 2002-02-20
GB2368745A (en) 2002-05-08
HK1030725A2 (en) 2001-05-04
GB2365656B (en) 2002-10-09
DE10137547A1 (en) 2002-02-14
GB0027042D0 (en) 2000-12-20

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050726