Title of Invention

MULTIPLE BAND WIRELESS TELEPHONE WITH MULTIPLE ANTENNAS

Abstract

No. IN/PCT/2002/01243/CHE ABSTRACT MULTIPLE BAND WIRELESS TELEPHONE WITH MULTIPLE ANTENNAS The present invention relates to a wireless telephone (102) includes a telephone transceiver (104), GPS receiver (106), and Bluetooth transceiver (108). The telephone anemia (110) is external, and the Bluetooth antenna (120) is internal. The GPS receiver (106) may be driven by its own internal antenna (326), or via a signal separator (116), (216), by either of the other antennas ((110), (120). (Fig 2)

Full Text

MULTIPLE BAND WIRELESS TELEPHONE WITH MULTIPLE ANTENNAS BACKGROUND OF THE INVENTION Technical Field [lOOl] This invention relates to wireless telephones, and has particular relation to antenna architecture for multiple band wireless telephones. Background Art [1002] Wireless telephones have long had to operate in multiple frequency bands. The older cellular telephones operate at 800 MHz, while the more modem PCS (Personal Communication System) telephones operate at 1900 MHz. This could be done with a single antenna, operating as a quarter-wavelength antenna in the first band and as a half-wavelength band in the second. As additional features become available, however, additional antennas must be used. This is undesirable, since it adds to the weight and bulk of what is intended to be a lightweight, compact, and (inmost importantly) portable product ~ a wireless telephone. BRIEF DISCLOSURE OF THE INVENTION 11003] Applicants have overcome the limitations of the prior art, at least . where the additional features are GPS and Bluetooth. [1004] GPS is the Global Positioning System. A ground-based receiver receives precisely timed signals from several satellites. Each satellite has a precisely known position, a code for which is also included in the signal. By noting the time (and the differences in time) at which each signal is received, the receiver can calculate its own position.. GPS operates at 1575 MHz. [1005] Bluetooth is a project of the Bluetooth Special Interest Group. Its website as of the filing date of the application, at http://www.bluetooth.com. is The signal separator separates the telephone signals and the GPS signals, and applies the telephone signals to the telephone transceiver (104) and the GPS signals to the GPS receiver (106). A remote Bluetooth device (118) sends signals to an internal Bluetooth antenna (120), which applies the Bluetooth signals to the Bluetooth receiver (108). [1014] FIG. 2 is a block diagram of the second embodiment of the present invention. FIG. 2 is generally the same a FIG-1, with two exceptions. [1015] First, the external antenna (110) of FIG. 1 has become external antenna (210), since it has been optimized to receive telephone signals on two bands rather than on one band. Signals on a first band are received from a first remote base station (222), and signals on a second band are received from a second remote base station (224). The two base stations may be co-located, and may even share an ant Erma/ but are considered to be separate since they operate on different frequency bands. The single-band telephone transceiver (104) of FIG. 1 is changed to become dual-band telephone transceiver (204) of FIG. 2. Dual-band telephone transceivers sharing a common antenna are known in the art. [1016] Second, the signal separator (116) of FIG. 1 has become signal separator (216) of FIG. 2, since it separates GPS and Bluetooth signals rather than GPS and telephone signals. Internal antenna (120) of FIG. 1 has become internal antenna (220) of FIG. 2, since it has been optimized to receive both GPS and Bluetooth signals, rather than just Bluetooth signals. The signal separator (216) receives Bluetooth signals and GPS signals from the internal GPS intermit (220) and separates the two signals. It then applies the Bluetooth signals to the Bluetooth transceiver (108) and the GPS signals to the GPS receiver (106). [1017] FIG. 3 is a block diagram of the third embodiment of the present invention. FIG. 3 is generally the same a FIG. 2, with one exception. The signal separator (216) has been removed, and a separate, internal, GPS antenna (326) has been added, which directly applies GPS signals to the GPS receiver. The Bluetooth antenna (120) applies Bluetooth signals to the Bluetooth transceiver (108), as in FIG. I. Industrial Application [10181 This invention is capable of exploitation in industry, and can be made and used, whenever is it desired to provide a wireless telephone with GPS and method shown herein, taken separate and apart from, one another, may be entirely conventional, it being their combination that is claimed as the invention. [1019] While various modes of apparatus and method have been described^ the true spirit and scope of the invention are not limited thereto, but are limited only by the following claims and their equivalents, and such are claimed as the invention- WE CLAIM : 1. A wireless telephone, wherein, a) the telephone comprises i) a telephone transceiver (104) ii) an external antenna (110) connected to the telephone transceiver; and iii) a Global Positioning System (GPS) receiver (106) and antenna (326); and b) the telephone is characterized in that the telephone also comprises a Bluetooth transceiver (108) and internal antenna (220). 2. The wireless telephone as claimed in claim 1, comprises a signal separator for a) receiving telephone signals and GPS signals from the external antenna; b) separating the telephone signals and the GPS signals; c) applying the telephone signals to the telephone transceiver; and d) applying the GPS signals to the GPS receiver. 3. The wireless telephone as claimed in claim I, comprises a signal separator for a) receiving Bluetooth signals and GPS signals from the internal GPS antenna; b) separating the Bluetooth signals and the GPS signals; c) applying the Bluetooth signals to the Bluetooth transceiver; and d) applying the GPS signals to the GPS receiver. 4. The wireless telephone as claimed in claim 1 wherein antenna telephone is internal and separate from the Bluetooth antenna.

Documents:

in-pct-2002-1243-che abstract-duplicate.pdf

in-pct-2002-1243-che abstract.jpg

in-pct-2002-1243-che abstract.pdf

in-pct-2002-1243-che assignment.pdf

in-pct-2002-1243-che claims-duplicate.pdf

in-pct-2002-1243-che claims.pdf

in-pct-2002-1243-che correspondence-others.pdf

in-pct-2002-1243-che correspondence-po.pdf

in-pct-2002-1243-che description (complete)-duplicate.pdf

in-pct-2002-1243-che description (complete).pdf

in-pct-2002-1243-che drawings-duplicate.pdf

in-pct-2002-1243-che drawings.pdf

in-pct-2002-1243-che form-1.pdf

in-pct-2002-1243-che form-18.pdf

in-pct-2002-1243-che form-26.pdf

in-pct-2002-1243-che form-3.pdf

in-pct-2002-1243-che form-5.pdf

in-pct-2002-1243-che others.pdf

in-pct-2002-1243-che pct.pdf

in-pct-2002-1243-che petition.pdf