An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged for integration into a single IC including components such as filters and inductors. The controller for adaptive programming and calibration of the receiver, transmitter and LO generator. The self-testing unit generates is used to determine the gain, frequency characteristics, selectivity, noise floor, and distortion behavior of the receiver, transmitter and LO generator. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation of U.S. application Ser. No. 09/692,508, filed Oct. 19, 2000, now U.S. Pat. No. 6,968,167 which is a continuation of U.S. application Ser. No. 09/634,552, filed Aug. 8, 2000.
U.S. application Ser. No. 09/634,552 claims priority to and claims benefit from U.S. Application Ser. No. 60/160,806 filed Oct. 21, 1999; U.S. Application Ser. No. 60/163,487 filed Nov. 4, 1999; U.S. Application Ser. No. 60/163,398 filed Nov. 4, 1999; U.S. Application Ser. No. 60/164,442 filed Nov. 9, 1999; U.S. Application Ser. No. 60/164,194 filed Nov. 9, 1999; U.S. Application Ser. No. 60/164,314 filed Nov. 9, 1999; U.S. Application Ser. No. 60/165,234 filed Nov. 11, 1999; U.S. Application Ser. No. 60/165,239 filed Nov. 11, 1999; U.S. Application Ser. No. 60/165,356 filed Nov. 12, 1999; U.S. Application Ser. No. 60/165,355 filed Nov. 12, 1999; U.S. Application Ser. No. 60/172,348 filed Dec. 16, 1999; U.S. Application Ser. No. 60/201,335 filed May 2, 2000; U.S. Application Ser. No. 60/201,157 filed May 2, 2000; U.S. Application Ser. No. 60/201,179 filed May 2, 2000; U.S. Application Ser. No. 60/202,997 filed May 10, 2000; and U.S. Application Ser. No. 60/201,330 filed May 2, 2000.
An apparatus for detecting spectral components in a predetermined frequency band within a signal includes first and second processing devices and first, second, and third connectors tuned to the frequency band. The first processing device includes first, second, and third elements. The second processing device includes fourth, fifth, and sixth elements. The first connector is coupled to the first and fourth elements, the second connector to the second and fifth elements, and the third connector to the third and sixth elements. An apparatus for analyzing spectral components in predetermined frequency bands within a signal includes an input for receiving the signal, a device for isolating a portion of the signal, and frequency detectors coupled in parallel to the device. Each frequency detector corresponds to a frequency band and generates an output signal component corresponding to a proportion of energy of the spectral components detected by the frequency detector.
A switch block 1 includes: N inputs; M outputs; N amplification sections each of which amplifies one of each pair of 2N input signals which are generated by dividing N input signals supplied to the N inputs in two; N bandwidth conversion sections each of which subjects, to frequency conversion, the other one of each pair of 2N input signals; and a 2N.times.M switch section which outputs the 2N output signals, which are supplied from the N amplification sections and the N bandwidth conversion sections, to either: one of the M outputs; or none of the M outputs. With this arrangement, it is possible to provide a signal recombination circuit which can reduce the leakage of the input signals.
