Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
1998-06-16
2001-10-23
Nguyen, Lee (Department: 2683)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S088000, C455S352000, C455S419000, C340S870030, C340S870030, C341S172000
Reexamination Certificate
active
06308083
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to an integrated cellular telephone with a programmable transmitter.
A programmable transmitter, sometimes referred to as a universal transmitter, is a device which may be “trained” to reproduce the control signals of one or more remotely controlled systems. All-in-one, programmable, infrared remote control transmitters for televisions, videocassette recorders, and stereos combine the functions of several remotely controlled systems into a single transmitter. Similarly, several radio frequency (RF) controlled systems, such as garage door openers, security lighting, estate gates, and alarm systems, may be operated with a single transmitter that has the ability to “learn” and reproduce the unique RF messages employed by various manufacturers. Thus, a single programmable transmitter can eliminate the need to carry several separate RF transmitters. As a result, programmable transmitters provide a convenient way to consolidate the functions of several hand-held transmitters into a single device.
Cellular telephones, sometimes referred to as personal communication systems (PCS), provide a convenient way to place and receive telephone calls. A cellular telephone is a wireless radio transmitter and receiver which communicates through any of a number of antenna towers, each serving a particular “cell” within a given region. Over the past decade, the use of cellular phones and the number of cellular antenna towers have dramatically increased. Due to recent advancements in technology, most cellular phones are of a portable, hand-held size. As a result, many people now routinely carry a cellular phone. Further, most people must carry several hand-held transmitters to operate devices such as remote keyless entry systems, garage door openers, home security systems, etc.
Accordingly, there is a desire to integrate the functions of a cellular phone and several hand-held transmitters into a single portable, hand-held device.
SUMMARY OF TIE INVENTION
In a disclosed embodiment of this invention, a cellular telephone includes a telephone for transmitting outgoing telephone call signals and receiving incoming telephone call signals and a transmitter for producing a wireless control signal to operate a remote device. Preferably, the remote device is a remote keyless vehicle entry system, a garage door opener, an estate gate opener, a home security system, or a home lighting system. To reduce cost, the transmitter may produce both the control signal and the outgoing telephone call signals.
In a preferred embodiment of this invention, the transmitter may be programmable to reproduce one or more unique control signals to operate several remote devices.
These and other features of the present invention will be best understood from the following specification and drawings, the following of which is a brief description.
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Lear Automotive Dearborn Inc.
Nguyen Lee
Niro Scavone Haller & Niro
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