Approach for spectrum analysis in a receiver
First Claim
1. A device, comprising:
- a first operational mode in which the device is operable to process, in accordance with a communication protocol, first signals received by the device to determine communication data encoded in the first signals and to output the communication data;
a second operational mode in which the device is operable to generate and output frequency domain data representing second signals received by the device, wherein the frequency domain data includes strength of the second signals versus frequency of the second signals; and
logic that is operable to cause the device to operate in the first operational mode and the second operational mode, wherein the second operational mode is realized by selective use of at least one portion of components used in the first operational mode.
8 Assignments
0 Petitions
Accused Products
Abstract
A wireless communications apparatus that it is useable as a spectrum analyzer and as a wireless receiver. The wireless communications apparatus has a radio circuit that is configured to receive EM radiation. Signal processing logic receives signals from the radio circuit based on the EM radiation. The signal processing logic has a receiver operational mode that processes the signals in accordance with a communication protocol and outputs data encoded in the signals to a host processor. The signal processing logic has a spectrum analyzer operational mode that generates frequency domain data and passes the frequency domain data to the host processor. The frequency domain data describe strength versus frequency of the EM radiation. The host processes the data in accordance with the configuration currently in use. Therefore, the wireless communications apparatus operates as a receiver in one operational mode and as a real-time spectrum analyzer in another operational mode.
66 Citations
30 Claims
-
1. A device, comprising:
-
a first operational mode in which the device is operable to process, in accordance with a communication protocol, first signals received by the device to determine communication data encoded in the first signals and to output the communication data;
a second operational mode in which the device is operable to generate and output frequency domain data representing second signals received by the device, wherein the frequency domain data includes strength of the second signals versus frequency of the second signals; and
logic that is operable to cause the device to operate in the first operational mode and the second operational mode, wherein the second operational mode is realized by selective use of at least one portion of components used in the first operational mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A wireless communications apparatus comprising:
-
a radio circuit that is configured to receive electromagnetic radiation;
a host processor;
signal processing logic coupled to the radio circuit to receive signals based on the electromagnetic radiation; and
logic that is operable to cause the signal processing logic to operate in a first operational mode and a second operational mode;
wherein, in the first operational mode, the signal processing logic is operable to process the signals in accordance with a communication protocol to determine communication data encoded in the first signals and to output the communication data to the host processor;
wherein, in the second operational mode, the signal processing logic is operable to generate frequency domain data based on the signals and to pass the frequency domain data to the host processor, wherein the frequency domain data describe strength versus frequency of the electromagnetic radiation;
wherein, in the first operational mode, the host is operable to process the communication data to operate as a receiver; and
wherein, in the second operational mode, the host is operable to process the frequency domain data to operate as a spectrum analyzer. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A method comprising:
-
operating signal processing logic in a first operational mode in which the signal processing logic is operable to process orthogonal frequency division multiplexed (OFDM) signals and to transfer processed OFDM data to a host;
in response to a control signal from a host, causing the signal processing logic to operate in a second operational mode that is operable to generate frequency domain data representing general electromagnetic radiation and to pass the frequency domain data to the host;
while the signal processing logic is in the first operational mode, the host processing the processed OFDM data; and
while the signal processing logic is in the second operational mode, the host processing the frequency domain data to operate as a spectrum analyzer. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
-
Specification