Abstract: The locating of a mobile radio-enabled tag, in which a radio network has fixed radio transceivers configured to operate under a first radio protocol (602) to identify the vicinity of a tag. In addition, a portable radio receiver is configured to locate the position of the tag in the identified vicinity using a second radio protocol (603).

Abstract: Data is transmitted over a radio network, in which a fixed transceiver transmits distance data to a network data processor and the fixed transceiver is required to wait after a transmission to maintain network compatibility. Bulk distance data is collected for a plurality of mobile transceivers during a ranging time slot. The bulk distance data is transmitted in a transfer time slot 3201, while maintaining network compatibility. Fixed time of flight is shown and transmission power is controlled to avoid automatic gain control at a receiver. Distance values may be averaged from each pair of distanced derived from each available pair of fixed transceivers when ranging a specific mobile transceiver.

Abstract: Data is transmitted over a radio network, in which a fixed transceiver transmits distance data to a network data processor and the fixed transceiver is required to wait after a transmission to maintain network compatibility. Bulk distance data is collected for a plurality of mobile transceivers during a ranging time slot. The bulk distance data is transmitted in a transfer time slot 3201, while maintaining network compatibility. Fixed time of flight is shown and transmission power is controlled to avoid automatic gain control at a receiver. Distance values may be averaged from each pair of distanced derived from each available pair of fixed transceivers when ranging a specific mobile transceiver.

Abstract: A commercial album of analog audio recordings, having multiple tracks, is identified. An analog recording of the album is played to produce an analog audio input signal. The audio output signal is digitally sampled to produce digitized segments. One or more track-titles are obtained (1902) from a remote audio finger-printing service for each digitized segment to provide track-titles. For each obtained track-title, each album-title is requested (1905) upon which the obtained track-title appears, to provide candidate albums. A score is generated (1905) for each provided candidate album based on the number of obtained track-titles that appear on a provided candidate album in the correct order. An album is identified by comparing (2209) these scores.

Abstract: An analog audio signal derived from a vinyl recording is processed via an input transducer, such as a moving magnet or moving coil device. A phono input stage (209) has an adjustable input impedance. A pre-amplifier (207) with variable gain amplifies an output from the phono stage. A power amplifier (201) amplifies an output from the pre-amplifier. The temperature of the power amplifier is monitored and an output (202) from the power amplifier is supplied to an output transducer. A touch sensitive screen (104) receives input gestures to provide control signals to a control processor (203). The control processor operates first relays to control the input impedance, operates second relays to control the adjustable gain and also operates the second relays in order to attenuate output volume in response to identifying the monitored temperature as being above a predetermined threshold.

Abstract: A commercial album of analog audio recordings, having multiple tracks, is identified. An analog recording of the album is played to produce an analog audio input signal. The audio output signal is digitally sampled to produce digitized segments. One or more track-titles are obtained (1902) from a remote audio finger-printing service for each digitized segment to provide track-titles. For each obtained track-title, each album-title is requested (1905) upon which the obtained track-title appears, to provide candidate albums. A score is generated (1905) for each provided candidate album based on the number of obtained track-titles that appear on a provided candidate album in the correct order. An album is identified by comparing (2209) these scores.

Abstract: An analog audio signal derived from a vinyl recording is processed via an input transducer, such as a moving magnet or moving coil device. A phono input stage (209) has an adjustable input impedance. A pre-amplifier (207) with variable gain amplifies an output from the phono stage. A power amplifier (201) amplifies an output from the pre-amplifier. The temperature of the power amplifier is monitored and an output (202) from the power amplifier is supplied to an output transducer. A touch sensitive screen (104) receives input gestures to provide control signals to a control processor (203). The control processor operates first relays to control the input impedance, operates second relays to control the adjustable gain and also operates the second relays in order to attenuate output volume in response to identifying the monitored temperature as being above a predetermined threshold.