Communication system for preventing interference between wireless devices
First Claim
1. A communication system in a transaction establishment comprising:
- a transmitter in the transaction establishment which communicates with a plurality of different communication devices operated within the transaction establishment having overlapping bands of communication;
a plurality of transmitter control circuits which control the transmitter;
a switch circuit which selects a single transmitter control circuit at a time to prevent interference between the communication devices;
a plurality of different receiver circuits which receive signals from the different communication devices within the transaction establishment; and
a number of controllers coupled to the plurality of receiver circuits and to the plurality of transmitter control circuits which control the switch in response to the received signals circuit.
4 Assignments
0 Petitions
Accused Products
Abstract
A communication system which uses a multi-mode transmitter to communicate in a serial fashion with first and second wireless devices. The system includes a transmitter, a first transmitter control circuit which allows the transmitter to communicate with a first communication device, a second transmitter control circuit which allows the transmitter to communicate with a second communication device, a first receiver circuit which receives signals from the first communication device, a second receiver circuit which receives signals from the communication device, and a switch circuit. In one embodiment, the system additionally includes a controller coupled to the first and second receiver circuits which causes the switch circuit to select the first transmitter control circuit during a first time period and the second transmitter control circuit during a second time period different than the first time period.
24 Citations
11 Claims
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1. A communication system in a transaction establishment comprising:
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a transmitter in the transaction establishment which communicates with a plurality of different communication devices operated within the transaction establishment having overlapping bands of communication; a plurality of transmitter control circuits which control the transmitter; a switch circuit which selects a single transmitter control circuit at a time to prevent interference between the communication devices; a plurality of different receiver circuits which receive signals from the different communication devices within the transaction establishment; and a number of controllers coupled to the plurality of receiver circuits and to the plurality of transmitter control circuits which control the switch in response to the received signals circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A communication system in a transaction establishment comprising:
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a transmitter in the transaction establishment which communicates with first and second different communication devices operated within the transaction establishment having overlapping bands of communication; a first transmitter control circuit which controls the transmitter; a second transmitter control circuit which controls the transmitter; a first receiver circuit within the transaction establishment which receive signals from the first communication device; a second receiver circuit within the transaction establishment which receive signals from the second communication device; a switch circuit which selects either the first transmitter control circuit during a first time period or the second transmitter control circuit during a second time period different from the first time period to prevent interference between the first and second communication devices; a first controller coupled to the first receiver circuit and to the first transmitter control circuit which controls the switch circuit during the first time period; and a second controller coupled to the second receiver circuit and to the second transmitter control circuit which controls the switch circuit during the second time period.
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9. A communication system in a transaction establishment comprising:
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a transmitter in the transaction establishment which communicates with first and second different communication devices operated within the transaction establishment having overlapping bands of communication; a first transmitter control circuit which controls the transmitter; a second transmitter control circuit which controls the transmitter; a first receiver circuit within the transaction establishment which receives signals from the first communication device; a second receiver circuit within the transaction establishment which receives signals from the second communication device; a switch circuit which selects either the first transmitter control circuit during a first time period or the second transmitter control circuit during a second time period different from the first time period to prevent interference between the first and second communication devices; and a controller coupled to the first and second receiver circuits which controls the switch in response to the received signals circuit.
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10. A transceiver for communicating with a plurality of different devices in a transaction establishment comprising:
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a transmitter in the transaction establishment which communicates with first and second different communication devices operated within the transaction establishment having overlapping bands of communication; a first transmitter control circuit which controls the transmitter; a second transmitter control circuit which controls the transmitter; a first receiver circuit within the transaction establishment which receives signals from the first communication device; a second receiver circuit within the transaction establishment which receives signals from the second communication device; a switch circuit which selects either the first transmitter control circuit during a first time period or the second transmitter control circuit during a second time period different from the first time period to prevent interference between the first and second communication devices; and a controller coupled to the first and second receiver circuits which controls the switch in response to the received signals circuit.
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11. A communication system in a transaction establishment comprising:
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a transmitter in the transaction establishment which communicates with a plurality of different communication devices, including electronic shelf labels and portable communication devices, operated within the transaction establishment and having overlapping bands of communication; a plurality of transmitter control circuits which control the transmitter; a switch circuit which selects a single transmitter control circuit at a time to prevent interference between the electronic shelf labels and the portable communication devices; a plurality of different receiver circuits within the transaction establishment which receive signals from electronic shelf labels and the portable communication devices; and a number of controllers coupled to the plurality of receiver circuits and to the plurality of transmitter control circuits which control the switch circuit.
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Specification