Spread-spectrum changeable base station
First Claim
1. A communication unit for use in a spread-spectrum communication system having a plurality of the units which allow for simultaneous communication among of a plurality of active units, each communication unit comprising:
- a command signal generator for generating a command signal;
means for transmitting communication signals at one of two frequencies and for transmitting said command signal; and
means for receiving communication signals at one of said two frequencies and for receiving said command signal, whereby upon initiation of said command signal, said command signal is transmitted for receipt by all active units in the system and the unit transmitting said command signal receives communication signals at a selected frequency of said two frequencies and transmits communication signals at another frequency, and whereby upon reception of said command signal from another unit in the system, the unit receiving said command signal transmits a communication signal at said selected frequency of said two frequencies and receives communication signals at said another frequency.
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Accused Products
Abstract
A conference calling spread-spectrum communications system and method using a plurality of spread-spectrum units, any one of which may serve as the base station and where the base station may be changed from one spread-spectrum unit to another upon command. Each spread-spectrum unit includes a base subunit, a remote subunit, and a command subunit. An operator may initiate from the command subunit of a particular spread-spectrum unit, a command signal to activate the base subunit of the particular spread-spectrum unit. Upon initiating the command signal, the particular spread-spectrum unit is activated as the base station and the command signal is broadcast to the remaining plurality of spread-spectrum units. At a respective remote subunit of each of the remaining plurality of spread-spectrum units, the command signal is received and, in response to receiving the command signal, the respective remote subunit in each of the remaining plurality of spread-spectrum units is activated to operate the remaining plurality of spread-spectrums units as remote units.
32 Citations
20 Claims
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1. A communication unit for use in a spread-spectrum communication system having a plurality of the units which allow for simultaneous communication among of a plurality of active units, each communication unit comprising:
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a command signal generator for generating a command signal;
means for transmitting communication signals at one of two frequencies and for transmitting said command signal; and
means for receiving communication signals at one of said two frequencies and for receiving said command signal, whereby upon initiation of said command signal, said command signal is transmitted for receipt by all active units in the system and the unit transmitting said command signal receives communication signals at a selected frequency of said two frequencies and transmits communication signals at another frequency, and whereby upon reception of said command signal from another unit in the system, the unit receiving said command signal transmits a communication signal at said selected frequency of said two frequencies and receives communication signals at said another frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 17)
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8. A method of using a communication unit used in a spread-spectrum communication system having a plurality of the units which allows for simultaneous communication among a plurality of active units, the method comprising the steps of:
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initiating the generation of a command signal;
transmitting communication signals at one of two frequencies and transmitting said command signal; and
receiving communication signals at one of said two frequencies and receiving said command signal, whereby upon initiation of said command signal, said command signal is transmitted for receipt by all active units in the system and the unit transmitting said command signal receives communication signals at a selected frequency of said two frequencies and transmits communication signals at another frequency, and whereby upon reception of said command signal from another unit in the system, the unit receiving said command signal transmits a communication signal at said selected frequency of said two frequencies and receives communication signals at said another frequency. - View Dependent Claims (18)
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9. A spread-spectrum communication system having a plurality of communication units which allow for simultaneous communication among a plurality of active units, each communication unit comprising:
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a command signal generator for generating a command signal;
means for transmitting communication signals at one of two frequencies and for transmitting said command signal; and
means for receiving communication signals at one of said two frequencies and for receiving said command signal, whereby upon initiation of a command signal, said command signal is transmitted for receipt by all active units in the system and the unit transmitting said command signal receives communication signals at a selected frequency of said two frequencies and transmits communication signals at another frequency, and whereby upon reception of said command signal from another unit in the system, the unit receiving said command signal transmits a communication signal at said selected frequency of said two frequencies and receives communication signals at said another frequency. - View Dependent Claims (10, 11, 12, 13, 14, 15, 19)
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16. A spread-spectrum communication method using a plurality of communication units allowing for simultaneous communication among a plurality of active units, the method comprising the steps of:
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initiating the generation of a command signal;
transmitting communication signals at one of two frequencies and transmitting said command signal; and
receiving communication signals at one of said two frequencies and receiving said command signal, whereby upon initiation of said command signal, said command signal is transmitted for receipt by all active units in the system and the unit transmitting said command signal receives communication signals at a selected frequency of said two frequencies and transmits communication signals at another frequency, and whereby upon reception of said command signal from another unit in the system, the unit receiving said command signal transmits a communication signal at said selected frequency of said two frequencies and receives communication signals at said another frequency. - View Dependent Claims (20)
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Specification