Remote communication devices, radio frequency identification devices, wireless communication systems, wireless communication methods, radio frequency identification device communication methods, and methods of forming a remote communication device
First Claim
1. A remote communication device comprising:
- communication circuitry configured to at least one of receive communication signals and generate communication signals; and
an antenna coupled with the communication circuitry, the antenna including a first portion, a second portion and an impedance reduction portion, the first portion to substantially tune the antenna to a first frequency band, the first and second portions to tune the antenna simultaneously to a second frequency band different from the first frequency band, the impedance reduction portion coupled to the first and second portions to facilitate tuning to the first and second frequency bands.
3 Assignments
0 Petitions
Accused Products
Abstract
Remote communication devices, radio frequency identification devices, wireless communication systems, wireless communication methods, radio frequency identification device communication methods, and methods of forming a remote intelligent communication device are provided. According to one aspect, a remote intelligent communication device includes communication circuitry configured to at least one of receive communication signals and generate communication signals; and an antenna coupled with the communication circuitry and substantially tuned to a plurality of frequencies, the antenna being configured to communicate wireless signals corresponding to the communication signals including at least one of receiving wireless signals and outputting wireless signals. Another aspect includes a wireless communication method including providing a remote intelligent communication device having an antenna substantially tuned to a plurality of frequencies; and communicating wireless signals using the antenna including at least one of receiving wireless signals at one of the frequencies and outputting wireless signals at one of the frequencies.
134 Citations
87 Claims
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1. A remote communication device comprising:
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communication circuitry configured to at least one of receive communication signals and generate communication signals; and an antenna coupled with the communication circuitry, the antenna including a first portion, a second portion and an impedance reduction portion, the first portion to substantially tune the antenna to a first frequency band, the first and second portions to tune the antenna simultaneously to a second frequency band different from the first frequency band, the impedance reduction portion coupled to the first and second portions to facilitate tuning to the first and second frequency bands. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 42, 43, 46, 47)
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11. A remote communication device comprising:
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communication circuitry configured to at least one of receive communication signals and generate communication signals; an antenna coupled with the communication circuitry, the antenna having a plurality of substantially resonant frequencies and an impedance reduction strip integrated within a frequency tuning portion of the antenna; and a quarter-wavelength transmission line coupled intermediate the communication circuitry and the antenna. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A radio frequency identification (RFID) device comprising:
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communication circuitry configured to receive communication signals and generate communication signals according to an identification code stored to identify the RFID device; and at least one antenna coupled with the communication circuitry, the at least one antenna to simultaneously tune to a plurality of frequency bands including a first frequency band and a second frequency band, wherein a center frequency of the second frequency band is at least twice a center frequency of the first frequency band. - View Dependent Claims (19, 20, 21, 44, 48, 49)
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22. A radio frequency identification (RFID) device comprising:
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communication circuitry configured to receive forward signals from an interrogator and generate return signals according to an identification code stored to identify an object to which the RFID device is attached; and an antenna coupled with the communication circuitry and configured to communicate wireless signals at one of a plurality of frequencies including at least one of receiving the forward signals and outputting the return signals; wherein the antenna is simultaneously substantially tuned to the frequencies, but not tuned to at least one frequency between two of the plurality of frequencies, at a moment in time. - View Dependent Claims (23, 24, 25, 26, 45)
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27. A wireless communication method comprising:
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providing a remote communication device having an antenna simultaneously substantially tuned to first and second different frequency bands; and communicating wireless signals using the antenna, including at least one of; receiving wireless signals at a frequency within one of the frequency bands, and outputting wireless signals at a frequency within one of the frequency bands; wherein the antenna is not tuned to at least one frequency between the first and the second different frequency bands, and the antenna includes an impedance reduction strip integrated within the antenna to facilitate tuning to the first and second frequency bands. - View Dependent Claims (28, 29, 30, 31, 32)
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33. A radio frequency identification (RFID) device communication method comprising:
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affixing a RFID device to an object to wirelessly identify the object via wireless signals at a plurality of frequencies using at least one antenna of the RFID device, the at least one antenna being simultaneously substantially tuned to the frequencies but not tuned to at least one frequency between two of the plurality of frequencies; receiving forward signals at one of the frequencies; and outputting return signals at one of the frequencies. - View Dependent Claims (34, 35, 36)
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37. A method of forming a radio frequency identification (RFID) device comprising:
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providing communication circuitry configured to at least one of receive forward signals and output return signals; forming at least one antenna to simultaneously communicate at a plurality of resonant frequencies, the at least one antenna not tuned to at least one frequency between two of the plurality of resonant frequencies; and coupling the at least one antenna with the communication circuitry. - View Dependent Claims (38, 39, 40, 41, 50, 51)
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52. A radio frequency identification (RFID) device, comprising:
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a first loop antenna configured to operate at a first frequency; a second antenna configured to operate at a second frequency which is at least twice the first frequency; and a communication circuitry coupled to the first antenna and the second antenna, the communication circuitry comprising a transmitter and a receiver, the receiver configured to receive wireless radio frequency interrogation signals via one of the first antenna and the second antenna, and the transmitter configured to use one of the first antenna and the second antenna to modulate a radio continuous wave signal to provide, in response to the wireless signals, information that identifies the RFID device, wherein the continuous wave signal is provided by a separate device interrogating the RFID device. - View Dependent Claims (53, 54, 55, 56, 57, 58, 59, 60, 61, 62)
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63. A radio frequency identification (RFID) device, comprising:
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a first antenna and a second antenna configured to operate in a plurality of exclusive non-overlapping frequency bands; and a communication circuitry coupled to the first antenna and the second antenna to receive and process radio frequency (RF) communication signals, the communication circuitry configured to receive the communication signals via one of the first antenna and the second antenna and, in response, to transmit identification signals via one of the first antenna and the second antenna, the identification signals to identify the RFID device via modulating an RF field generated by an interrogating device. - View Dependent Claims (64, 65, 66, 67, 68, 69)
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70. A radio frequency identification (RFID) method, comprising:
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providing an RFID device having a first loop antenna and a second antenna configured to operate in a plurality of exclusive non-overlapping frequency bands; receiving, from an interrogating device, an interrogation signal via one of the first antenna and the second antenna; and transmitting, in response to the interrogation signal, an identification signal to identify the RFID device to the interrogating device via one of the first antenna and the second antenna, wherein the identification signal is generated by modulating an RF field provided by the interrogating device. - View Dependent Claims (71, 72, 73, 74, 75)
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76. A method of forming a radio frequency identification (RFID) device, the method comprising:
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providing communication circuitry configured to receive interrogation signals and output identification signals; forming a first loop antenna and a second antenna; and coupling the first loop antenna and the second antenna to the communication circuitry to allow the communication circuitry to use the first loop antenna and the second antenna to communicate wireless signals, including the interrogation signals and the identification signals, in a plurality of exclusive non-overlapping frequency bands. - View Dependent Claims (77, 78, 79, 80)
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81. A radio frequency identification (RFID) system, comprising:
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a first RFID device to transmit wireless interrogation signals; a second RFID device having a communication circuitry, a first loop antenna and a second antenna configured to operate at a plurality of frequencies, a first frequency of the frequencies being at least twice a second frequency of the frequencies, wherein in response to the interrogation signals, the second RFID device is to use one of the first loop antenna and the second antenna to provide identification signals, via modulating a radio frequency (RF) field provided by the first RFID device, the identification signals identifying the second RFID device to the first RFID device. - View Dependent Claims (82, 83, 84, 85, 86, 87)
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Specification