Pulse or digital communications – Spread spectrum – Frequency hopping
Reexamination Certificate
2005-12-13
2005-12-13
Patel, Jay K. (Department: 2637)
Pulse or digital communications
Spread spectrum
Frequency hopping
C455S551000, C455S552100
Reexamination Certificate
active
06975667
ABSTRACT:
A dual-radio communication apparatus has a first radio device, such as a Bluetooth radio, for use in a first frequency band, and a second radio device, such as a Globalstar satellite radio, for use in a second frequency band, which is proximate to the first frequency band. The communication apparatus also has a controller coupled to the first and second radio devices. The first radio device may comprise a frequency-hopping spread-spectrum transmitter. Moreover, the first radio device has a first operating mode employing a first frequency range. The first radio device also has a second operating mode employing a second frequency range, which is smaller than the first frequency range. The controller is adapted to set the first radio device in its second operating mode, when the second radio device is in operation, and otherwise set the first radio device in its first operating mode.
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International-Type Search Report prepared by the ISA/SE in connection with SE 0001821-8 as filed on May 18, 2000. (English).
Bristow Robert
Haartsen Jacobus
Mattisson Sven
Ghulamali Qutub
Patel Jay K.
Telefonaktiebolaget LM Ericsson (publ)
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