US Patent No: 6,678,532

Number of patents in Portfolio can not be more than 2000

Portable phone with detecting unit of contact of antenna with human body

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Importance

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Abstract

A portable phone includes an antenna. A detecting circuit detects contact of the antenna with a user or decrease the electric field intensity around of the antenna, and generates a notice signal based on the detecting result. A notifying section notifies to the user, that the antenna contacts the user, in response to the notice signal.

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First Claim

Related Publications

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Patent Owner(s)

Patent OwnerAddressTotal Patents
NEC CORPORATIONTOKYO17429

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mizoguchi, Tamiyuki - 8 108

Cited Art

Patent Info (Count) # Cites Year
 
ERICSSON INC. (1)
6,097,934 Retractable radiotelephone antennas with extended feeds 10 1997
 
FUJITSU LIMITED (1)
6,122,083 Mobile communication system having a small base station and equipment for its system 36 1994
 
KYOCERA CORPORATION (1)
5,987,308 Portable terminal having a shared antenna with reduced standing wave ratio 5 1997
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
6,263,190 Mobile communication apparatus with a security function and a method of communicating with a base station with security 16 1997
 
MOTOROLA, INC. (1)
5,408,693 Muting of radio-transmitter digital audio based on received signal strength 10 1991
 
NATIONAL INSTITUTE OF INFORMATION AND (1)
6,061,579 Hand-held mobile phone terminal 13 1997
 
NEC CORPORATION (1)
6,219,532 Movable radio terminal device capable of precisely matching impedances 10 1998
 
TOKYO SHIBAURA DENKI KABUSHIKI KAISHA (1)
4,633,519 Diversity reception system in a portable radio apparatus 65 1984
 
VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY (1)
5,541,609 Reduced operator emission exposure antennas for safer hand-held radios and cellular telephones 44 1995

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
APPLE INC. (3)
8,417,296 Electronic device with proximity-based radio power control 0 2008
8,432,322 Electronic devices with capacitive proximity sensors for proximity-based radio-frequency power control 0 2009
8,427,376 Electronic devices with parasitic antenna resonating elements that reduce near field radiation 0 2009
 
SIEMENS AKTIENGESELLSCHAFT (2)
7,146,139 System and method for reducing SAR values 16 2001
7,511,513 System and method for detecting the proximity of a body 4 2006
 
KABUSHIKI KAISHA YASKAWA DENKI (1)
8,032,253 Automatic machine system and wireless communication method thereof 1 2006
 
NEC CORPORATION (1)
7,610,060 Mobile wireless communication terminal and method of matching antenna in the same 0 2005
 
NOKIA SIEMENS NETWORKS GMBH & CO. KG (1)
7,053,629 System and method for detecting the proximity of a body 6 2001
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
6,897,773 Computer powered wire(less) ultra-intelligent real-time monitor 1 2002

Maintenance Fees

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11.5 Year Payment $7400.00 $3700.00 $1850.00 Jul 13, 2015
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Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00