Frequency converters; Radio transmitters; Amplifier for wireless communications; Antennas for wireless communications apparatus; Apparatus for transmission of communication; Apparatus for wireless transmission of acoustic information; Devices for wireless radio transmission; Integrated circuits and integrated circuit cores for use in wireless communications and wireless communication equipment and apparati and digital signal processors (DSP); Wireless POS (point of service) devices; Wireless telephones; Wireless telephony apparatus; Audio amplifiers; Optical semiconductor amplifiers; Power amplifiers; Sound amplifiers; Sound mixers with integrated amplifiers; Semiconductor chips; Semiconductor devices; Semiconductor power elements; Semiconductors; Integrated circuit module; Integrated circuit modules; Digital signal processors; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, namely, audio processors; Attenuators; Diodes; Acoustic couplers; Electronic combiners for connecting antennas and receivers; Converters; Electric converters; Multiplexers; Reconfigurable processors for use in wireless communication handsets and network equipment in the field of wideband communications; Demodulators; Change-over switches; Electric switches; High frequency switches; Power switches; Telecommunication switches; Radio receivers; Radio receivers and monitors for reproduction of sound and signals; Electronic transmitters and receivers for wireless communication; Silicon wafers; Structured semi-conductor wafers; Transceivers; Radios; radio frequency transmitters