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IT1320576B1 - AUDIO AMPLIFICATION DEVICE FOR A MOBILE PHONE. - Google Patents

AUDIO AMPLIFICATION DEVICE FOR A MOBILE PHONE.

Info

Publication number
IT1320576B1
IT1320576B1 IT2000TO000768A ITTO20000768A IT1320576B1 IT 1320576 B1 IT1320576 B1 IT 1320576B1 IT 2000TO000768 A IT2000TO000768 A IT 2000TO000768A IT TO20000768 A ITTO20000768 A IT TO20000768A IT 1320576 B1 IT1320576 B1 IT 1320576B1
Authority
IT
Italy
Prior art keywords
mobile phone
amplification device
audio amplification
audio
phone
Prior art date
Application number
IT2000TO000768A
Other languages
Italian (it)
Inventor
Kaiman Li
Original Assignee
Canhold Internat 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 Internat Ltd filed Critical Canhold Internat Ltd
Priority to IT2000TO000768A priority Critical patent/IT1320576B1/en
Publication of ITTO20000768A0 publication Critical patent/ITTO20000768A0/en
Priority to HK00105955A priority patent/HK1030725A2/en
Priority to GB0027042A priority patent/GB2368745A/en
Priority to GB0118200A priority patent/GB2365656B/en
Priority to DE10137547A priority patent/DE10137547A1/en
Publication of ITTO20000768A1 publication Critical patent/ITTO20000768A1/en
Application granted granted Critical
Publication of IT1320576B1 publication Critical patent/IT1320576B1/en

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)
IT2000TO000768A 2000-08-01 2000-08-01 AUDIO AMPLIFICATION DEVICE FOR A MOBILE PHONE. IT1320576B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT2000TO000768A IT1320576B1 (en) 2000-08-01 2000-08-01 AUDIO AMPLIFICATION DEVICE FOR A MOBILE PHONE.
HK00105955A HK1030725A2 (en) 2000-08-01 2000-09-21 Audio amplification device for a cellular telephone
GB0027042A GB2368745A (en) 2000-08-01 2000-11-03 Amplifier for a loudspeaking mobile phone
GB0118200A GB2365656B (en) 2000-08-01 2001-07-26 Audio amplification device for a cellular telephone
DE10137547A DE10137547A1 (en) 2000-08-01 2001-08-01 Audio amplifier for mobile telephone has microphone in ear capsule seat to pick up sound emitted by capsule, device connected to microphone to reproduce amplified sound from capsule

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
ITTO20000768A0 ITTO20000768A0 (en) 2000-08-01
ITTO20000768A1 ITTO20000768A1 (en) 2002-02-01
IT1320576B1 true IT1320576B1 (en) 2003-12-10

Family

ID=11457976

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2000TO000768A IT1320576B1 (en) 2000-08-01 2000-08-01 AUDIO AMPLIFICATION DEVICE FOR A 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
GB0118200D0 (en) 2001-09-19
GB2365656B (en) 2002-10-09
GB0027042D0 (en) 2000-12-20
DE10137547A1 (en) 2002-02-14
GB2365656A (en) 2002-02-20
GB2368745A (en) 2002-05-08
HK1030725A2 (en) 2001-05-04
ITTO20000768A1 (en) 2002-02-01
ITTO20000768A0 (en) 2000-08-01

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