Bandspeed, Inc.

Nils Bagge

Ben William Jones

John MacLean Morton

Douglas Mammoser

Matthew P Wingert

Bhavin Bhulani

Harrison J Killian

Kevin Cheng-Hsuan Yang

An integrated circuit comprises a main bus, one or more integrated processors, an external bus interface, memory, internal bus controller, a signal analyzer, timers, reset/clock generator, radio controller, optional data converters, and optional radio. The signal analyzer performs both time-domain and frequency-domain analysis of the input signal and supplies data to the one or more integrated processors for signal classification.

Integrated circuit for signal analysis

An approach and apparatus for adaptive scanning for detection and classification of an RF signal. Time-domain and frequency-domain information are acquired and processed over a broad band of frequencies segmented into channels to produce signal features. The signal features are classified using a signal classifier into signal discriminants, from which a signal of interest is located and identified. Subsequent channel scans then place an increased relative or absolute dwell time on the channel believed to contain the signal of interest.

Adaptive channel scanning for detection and classification of RF signals

An approach for selecting communications channels to be used by a communication system includes evaluating for the presence of one or more signals both a particular communications channel currently being used by the communication system and one or more other communications channels. For the particular communications channel currently being used by the communication system, signals that use a different communications protocol than the communication system are evaluated. For the one or more other communications channels, both signals that use the same communications protocol as the communication system and signals that use a different communications protocol than the communication system are evaluated. The approach may include the use of metrics and classification of device types to determine one or more communications channels to be used by the communication system.

Approach for selecting communications channels in communication systems to avoid interference

A method and apparatus for processing signal pulses received by a device to identify the presence or absence of a waveform is provided. The waveform may have a long duration and may have a sparse energy distribution. An example of such a waveform is the bin-5 radar waveform. Based on the arrival rate of pulses, filtering of pulses is performed. The pulses that are not filtered out are grouped into bursts and information about the bursts is stored in a burst history. For example, the burst history might store the number of pulses in the burst and an inter-burst interval time. Entries over a certain age may be deleted from the burst history. The burst history is analyzed to determine if the pulses conform to a pattern associated with the waveform. The analysis may be based on various statistics. In an embodiment, only time domain information is analyzed.

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Austin, TX, United States of America

Nils Bagge