US Patent No: 4,585,903

Number of patents in Portfolio can not be more than 2000

Cordless telephone

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

A cordless telephone system which provides improved performance through a number of moved circuits including the use of a single oscillator in a remote unit for providing both a standard for the transmitted signal and a local oscillator signal. The remote unit is layed out to minimize interference between the transmitted and received signal and includes a vertically disposed transmitting antenna and horizontally disposed receiving antenna.

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First Claim

Related Publications

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ROSE COMMUNICATION SYSTEMS, INC.SAN JOSE, CA2
VIKING PHONE COMPANYLOS ALTOS, CA1

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bennett, Aubert E San Bruno, CA 1 19
Schiller, Thomas H 1837 Granger Ave., Los Altos, CA 94024 6 76

Cited Art

Patent Info (Count) # Cites Year
 
NIPPON ELECTRIC CO., LTD. (1)
4,373,205 Radio subscriber system with efficient use of radio frequency carrier waves 10 1980
 
OKI ELECTRIC INDUSTRY CO., LTD. (1)
4,186,344 Frequency converter 14 1977
 
VOGELMAN; JOSEPH HERBERT (1)
4,332,981 Cordless telephone 17 1980

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
RONALD A. KATZ TECHNOLOGY LICENSING, L.P. (5)
6,570,967 Voice-data telephonic interface control system 46 1995
6,349,134 Telephonic-interface statistical analysis system 19 1995
6,434,223 Telephone interface call processing system with call selectivity 14 1999
6,512,415 Telephonic-interface game control system 16 1999
6,678,360 Telephonic-interface statistical analysis system 40 2000
 
E. F. JOHNSON COMPANY (4)
5,040,237 Method and apparatus for an alternate home channel for a land mobile transmission trunked communication system 27 1989
5,159,701 Method and apparatus for a distributive wide area network for a land mobile transmission trunked communication system 28 1991
5,613,196 Method and apparatus for a distributive wide area network for a land mobile transmission trunked communication system 22 1994
D397109 Handheld two-way radio with hinged cover 5 1995
 
NEC CORPORATION (3)
5,010,584 Mobile communication transceiver 27 1989
5,193,219 Vehicular power booster circuitry for multi-level portable transceiver 19 1990
6,040,782 Radio signal receiving apparatus with audio signal receiving and reproducing function 1 1997
 
ALVEN CAPITAL CORPORATION (2)
5,109,545 Proximal cable-less communication system with intentional signal path 6 1990
5,101,505 Method and apparatus for selective sideband signal correction in a proximal cable-less communication system 5 1990
 
BELTONE NETHERLANDS B.V. (1)
4,918,736 Remote control system for hearing aids 38 1985
 
J.J. MOODS, INC. (1)
D384059 Handheld two-way radio with hinged cover 13 1995
 
ROSE COMMUNICATION SYSTEMS, INC. (1)
4,759,078 Coordinated local oscillator receiving system 36 1986
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (2)
D336293 Adapter unit for providing a cordless connection between the handset and base of a telephone 3 1990
5,826,196 Multi-line remotely-accessible controller for cordless telephones 38 1995