Multi-band wireless transceiver and method of controlling the same
First Claim
1. A multi-band wireless transceiver having a plurality of signal-processing paths, and further having a function of making wireless communication through a plurality of frequency bands by selecting one of said signal-processing paths,said multi-band wireless transceiver comprising:
- a first synthesizer which transmits a local frequency signal for signal reception in accordance with divider data received from a controller which controls an operation of said multi-band wireless transceiver;
a second synthesizer which transmits a local frequency signal for signal transmission in accordance with divider data received from said controller; and
a band identification circuit connected to receive said divider data from said first synthesizer and said second synthesizer, said band identification circuit identifying one of said plurality of said frequency bands in dependence on said divider data, and selecting one of said signal-processing paths in accordance with the identified frequency band.
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Accused Products
Abstract
A multi-band wireless transceiver having a plurality of signal-processing paths, and further having a function of making wireless communication through a plurality of frequency bands by selecting one of the signal-processing paths, includes a band identification circuit for identifying a frequency band, the band identification circuit identifying a frequency band in dependence on a frequency-band information received from a controller which controls an operation of the multi-band wireless transceiver, and selecting one of the signal-processing paths in accordance with the identified frequency band.
23 Citations
22 Claims
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1. A multi-band wireless transceiver having a plurality of signal-processing paths, and further having a function of making wireless communication through a plurality of frequency bands by selecting one of said signal-processing paths,
said multi-band wireless transceiver comprising: -
a first synthesizer which transmits a local frequency signal for signal reception in accordance with divider data received from a controller which controls an operation of said multi-band wireless transceiver; a second synthesizer which transmits a local frequency signal for signal transmission in accordance with divider data received from said controller; and a band identification circuit connected to receive said divider data from said first synthesizer and said second synthesizer, said band identification circuit identifying one of said plurality of said frequency bands in dependence on said divider data, and selecting one of said signal-processing paths in accordance with the identified frequency band. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of controlling a multi-band wireless transceiver having a plurality of signal-processing paths, and further having a function of making wireless communication through a plurality of frequency bands by selecting one of said signal-processing paths, comprising:
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identifying a frequency band in dependence on divider data received from a first synthesizer which transmits a local frequency signal for signal reception in accordance with divider data received from a controller which controls an operation of said multi-band wireless transceiver, and a second synthesizer which transmits a local frequency signal for signal transmission in accordance with divider data received from said controller; and selecting one of said signal-processing paths in accordance with the identified frequency band. - View Dependent Claims (10, 11)
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12. A computer program product having computer instructions, recorded on a computer readable medium, for enabling a computer executing the computer instructions to perform a method of controlling a multi-band wireless transceiver having a plurality of signal-processing paths, and further having a function of making wireless communication through a plurality of frequency bands by selecting one of said signal-processing paths, a first synthesizer which transmits a local frequency signal for signal reception in accordance with divider data received from a controller which controls an operation of said multi-band wireless transceiver, and a second synthesizer which transmits a local frequency signal for signal transmission in accordance with divider data received from said controller, the method comprising:
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identifying a frequency band in dependence on said divider data received from said first synthesizer and said second synthesizer; and selecting one of said signal-processing paths in accordance with the identified frequency band.
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13. A mobile communication terminal comprising:
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an antenna; a controller which controls an operation of said mobile communication terminal; a wireless signal processor which processes wireless signals having been received through said antenna and signals to be transmitted through said antenna, under control of said controller; a microphone through which a user inputs voice signals into said controller; a speaker through which a user listens to voice signals having been received through said antenna and having been processed in said wireless signal processor; a keyboard through which a user transmits commands into said controller; and a display on which images and data are displayed under control of said controller, said wireless signal processor including a multi-band wireless transceiver having a plurality of signal-processing paths, and further having a function of making wireless communication through a plurality of frequency bands by selecting one of said signal-processing paths, said multi-band wireless transceiver comprising a first synthesizer which transmits a local frequency signal for signal reception in accordance with divider data received from a controller which controls an operation of said multi-band wireless transceiver, a second synthesizer which transmits a local frequency signal for signal transmission in accordance with divider data received from said controller, and a band identification circuit connected to receive said divider data from said first multi-band wireless synthesizer and said second multi-band wireless synthesizer, said band identification circuit identifying one of said plurality of said frequency bands in dependence on said divider data, and selecting one of said signal-processing paths in accordance with the identified frequency band. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A computer program product having computer instructions, recorded on a computer readable medium, for enabling a computer executing the computer instructions to perform a method of controlling a multi-band wireless transceiver in a mobile communication terminal, having a plurality of signal-processing paths, and further having a function of making wireless communication through a plurality of frequency bands by selecting one of said signal-processing paths, a first synthesizer which transmits a local frequency signal for signal reception in accordance with divider data received from a controller which controls an operation of said multi-band wireless transceiver, and a second synthesize which transmits a local frequency signal for signal transmission in accordance with divider data received from said controller, the method comprising:
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identifying a frequency band in dependence on said divider data received from said first synthesizer and said second synthesizer; and selecting one of said signal-processing paths in accordance with the identified frequency band.
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Specification