The present technology relates to a signal processing device that enables TLV transmission, a signal processing method, and a program. The signal processing device includes: a demodulation processing unit that performs a demodulation process; a processing unit that performs a demux process; and a data signal line, a clock signal line, a sync signal line, and a valid signal line that are provided between the demodulation processing unit and the processing unit. A variable-length packet is transmitted between the demodulation processing unit and the processing unit through the data signal line, the clock signal line, the sync signal line, and the valid signal line. The variable-length packet is an Internet Protocol (IP) packet. The present technology can be applied to receivers that receive and process TLV streams.

Methods and apparatuses are presented to reduce multiuser interference resulting from two or more overlapping ultra wideband (UWB) transmissions by randomizing the start time of packets and/or bursts within the packets. A random offset time may be generated for a packet, and transmission of the packet may be arbitrarily delayed by that random offset time, relative to an earlier time at which the packet is prepared for transmission. A random offset time may be generated for a pulse burst within a symbol of a packet, and transmission of the burst may be delayed by that random offset time, relative to a nominal transmission window within the symbol. The burst may therefore occupy a portion of a guard period following the nominal transmission window. Either procedure, or both procedures, may be used to reduce multiuser interference between two concurrently transmitted packets by randomizing overlap occurring between the bursts.

Methods and systems are disclosed maintaining playback of content at a target or desired playback time. A playback device may be configured to compare a current playback time of a content asset to a target playback time of the content asset and to determine, for each comparison, whether a difference between the current playback time and the target playback time has reached a threshold. Based on determining that the difference between the current playback time and the target playback time has reached a threshold, the playback device may seek to the target playback time of the content asset. The playback device may be configured to repeatedly perform the comparing, determining and seeking operations in order to maintain the current playback time of the content within the threshold of the target playback time.

Systems and methods for digital synthesis of an output signal using a frequency generated from a resonator and computing amplitude values that take into account temperature variations and resonant frequency variations resulting from manufacturing variability are described. A direct frequency synthesizer architecture is leveraged on a high Q resonator, such as a film bulk acoustic resonator (FBAR), a spectral multiband resonator (SMR), and a contour mode resonator (CMR) and is used to generate pristine signals.

A digital routing unit (DRU) within a wireless distribution system (WDS) couples to multiple signal sources (e.g., base band units (BBU)) through common public radio interface (CPRI) links in such a fashion that clock reconditioning circuitry within the DRU is consolidated. That is, instead of each receiver circuit at each input at the DRU having its own clock reconditioning circuit, signals from the same network operator may be multiplexed so as to select a single signal and, from that single signal, recover a cleaned clock signal for use by all the receivers that receive signals from that network operator.

An audio device may be connected to a communication network. The audio device may send or receive audio data via a network, based on a network clock that may be synchronized with other audio device connected to the network. The audio device may buffer, convert between digital audio signals and analog audio signals, encrypt, decrypt, packetize, depacketize, compress, and/or decompress audio data using a local asynchronous media clock using a relatively lower precision clocking technology such as a crystal-based oscillator.

Methods and systems are disclosed maintaining playback of content at a target or desired playback time. A playback device may be configured to compare a current playback time of a content asset to a target playback time of the content asset and to determine, for each comparison, whether a difference between the current playback time and the target playback time has reached a threshold. Based on determining that the difference between the current playback time and the target playback time has reached a threshold, the playback device may seek to the target playback time of the content asset. The playback device may be configured to repeatedly perform the comparing, determining and seeking operations in order to maintain the current playback time of the content within the threshold of the target playback time.

In an approach for identifying a location of a mobile device a processor receives a first set of Global Positioning System (GPS) data at a time, wherein the time is specified by the mobile device. A processor synchronizes the time with Coordinated Universal Time (UTC). A processor retrieves offset values, wherein the offset values comprise one or more values to adjust one or more location coordinates based on the synchronized time, and wherein the offset values are determined by comparing a known set of location coordinates to a set of location coordinates calculated using another set of GPS data. A processor calculates location coordinates of the mobile device using the first set of GPS data and the offset values. A processor stores at least the location coordinates of the mobile device and the synchronized time.

A sensor may determine, based on two or more synchronization signals provided by a control device, an expected time for receiving an upcoming synchronization signal. The sensor may perform a measurement of a sensor signal at a point in time such that sensor data, corresponding to the measurement of the sensor signal at the point in time, is available at a selectable time interval prior to reception of the upcoming synchronization signal.

Methods and apparatuses are presented to reduce multiuser interference resulting from two or more overlapping ultra wideband (UWB) transmissions by randomizing the start time of packets and/or bursts within the packets. A random offset time may be generated for a packet, and transmission of the packet may be arbitrarily delayed by that random offset time, relative to an earlier time at which the packet is prepared for transmission. A random offset time may be generated for a pulse burst within a symbol of a packet, and transmission of the burst may be delayed by that random offset time, relative to a nominal transmission window within the symbol. The burst may therefore occupy a portion of a guard period following the nominal transmission window. Either procedure, or both procedures, may be used to reduce multiuser interference between two concurrently transmitted packets by randomizing overlap occurring between the bursts.