Abstract: A method for detecting and attenuating the impact of interference in a signal of a radio receiver with multiple tuners. The method includes providing a first input signal RF1 to a first tuner T1; simultaneously providing a second input signal RF2 to a second tuner T2; simultaneously producing a first intermediate high injection signal IFH1, by the first tuner T1, using the first input signal RF1 filtered on a first frequency fE, and a first intermediate low injection signal IFB2, by the second tuner T2, using the second input signal RF2 filtered on the first frequency fE; comparing the first intermediate high injection signal IFH1 and the first intermediate low injection signal IFB2; selecting one out of the first intermediate high injection signal IFH1 and the first intermediate low injection signal IFB2 to be decoded by the radio receiver.

Abstract: A mobile terminal including a transceiver having a plurality of output terminals; a plurality of power amplifier units respectively connected to the plurality of output terminals, and configured to amplify a first or second signal output by the output terminals and to output the amplified first or second signal to a plurality of antennas respectively connected the plurality of power amplifiers; and a receiving module configured to receive a third signal through a receiving antenna disposed to be spaced apart from the plurality of antennas and to output the received third signal to the transceiver. Further, the receiving module includes first and second filters configured to control an intermodulation distortion (IMD) signal included in the third signal due to the output of the first or second signal.

Abstract: An information processing apparatus of the present invention includes a touch panel for displaying predetermined information and accepting a touch operation input; and a control section for controlling operation of the information processing apparatus itself having the touch panel installed therein. The control section includes a processing occurrence detection means for detecting occurrence of a predetermined processing executed by the control section; and a panel control means for nullifying a touch operation input against the touch panel when the occurrence of the predetermined processing is detected by the processing occurrence detection means.

Abstract: An information processing apparatus of the present invention includes a touch panel for displaying predetermined information and accepting a touch operation input; and a control section for controlling operation of the information processing apparatus itself having the touch panel installed therein. The control section includes a processing occurrence detection means for detecting occurrence of a predetermined processing executed by the control section; and a panel control means for nullifying a touch operation input against the touch panel when the occurrence of the predetermined processing is detected by the processing occurrence detection means.

Abstract: A data transmitting method, a data controlling module and a mobile device using the same are disclosed for transmitting data from the mobile device to a destination on an internet. The mobile device includes a first communication module and a second communication module. First, a first internet connection between the first communication module and the internet is established. Next, a second internet connection between the second communication module and the internet is established. Then, a local area connection between the first and second communication modules is established. The data to be transmitted are divided into several packets. A first part of the packets is transmitted from the first communication module to the destination through the first internet connection, and a second part of the packets is transmitted from the first communication module to the destination through the local area connection and the second internet connection.

Abstract: Methods and apparatus well suited for supporting communications over different ranges in, for example, a peer to peer wireless communications system, are described. In the peer to peer network at least some of the types of signals, e.g., peer discovery signals and/or paging signals, are transmitted with no closed loop power control. An exemplary peer to peer timing structure includes air link resources allocated for a particular type of signaling in which the resources are segmented into multiple blocks which do not overlap in time, different ones of the multiple blocks being associated with different ranges. The characteristics of the basic transmission units of the multiple blocks based on range are different, e.g., tone size and symbol width are different. A wireless communications device implements the peer to peer timing structure and uses resources from different range based blocks at different times. Data traffic transmission units may be the same regardless of the range.

Abstract: Disclosed is a mobile communication system which includes user equipment, radio base stations which communicate with the user equipment, and an upper level apparatus which communicates with the radio base stations. Each of the radio base stations includes a control unit and an inter-node communication unit. The control unit hands over a communication with user equipment to a hand-over target base station. The control unit prepares a forwarding packet which includes data addressed to the user equipment and is not transmitted and delay value identification information for specifying a delay value of the data that is not transmitted at the time of a hand-over. The inter-node communication unit transmits forwarding packets to a hand-over target base station.

Abstract: A method for processing audio may include performing using one or more processors and/or circuits in a Bluetooth enabled communication device, receiving audio samples that are encoded by a Bluetooth subband CODEC. The encoded audio samples may include inverse discrete cosine transformed windowed audio data. Shifted subband samples corresponding to the received encoded audio samples may be discrete cosine transformed during decoding by a receive Bluetooth subband codec. The inverse discrete cosine transformed windowed audio data may be generated by an encoding matrix operation. Windowing of the audio data may occur prior to the encoding matrix operation. A plurality of filter coefficients may be utilized for the windowing of the audio data. The shifted subband samples may be discrete cosine transformed during a decoding matrix operation.

Abstract: Certain aspects of a method and system for implementing a codec may comprise at least one of inverse discrete cosine transforming windowed data corresponding to a plurality of input audio samples during encoding by a Bluetooth subband codec and discrete cosine transforming shifted subband samples during decoding by the Bluetooth subband codec. The input audio samples may be reconstructed from the discrete cosine transforming of the shifted subband samples. The inverse discrete cosine transforming may be executed during a matrix operation of the encoding. The discrete cosine transforming may be executed during a matrix operation of the decoding. The input audio samples may be windowed during the encoding via a plurality of delay lines. A vector may be generated during a matrix operation of the decoding. The audio data associated with the generated vector may be windowed by a plurality of filter coefficients via a plurality of delay lines.

Abstract: An information processing terminal is attached to a transmitting and receiving unit which converts a reception wave signal from a network into a reception analog baseband signal and converts the reception analog baseband signal into a reception digital baseband signal in synchronization with a clock. The information processing terminal converts the reception digital baseband signal into reception data in synchronization with a clock, and transmission data into a transmission digital baseband signal in synchronization with the clock. The transmitting and receiving unit converts the transmission digital baseband signal into a transmission analog baseband signal in synchronization with the clock and converts the transmission analog baseband signal into a transmission modulation wave signal to output to the network.

Abstract: In a dual-channel HD radio receiver, when the broadband filter channel is compromised, the broadband channel is inactivated and the narrowband channel is activated. By mixing the signals of the two channels during the change, undesirable audio artifacts can be minimized.

Abstract: A chopper-direct-conversion (CDC) radio receiver includes a phase-alternating mixer receiving an antenna input signal and at least one local oscillator signal and generating a double sideband signal in a single mixing step. The phase-alternating mixer may be implemented by two parallel mixers each mixing the input signal with one of two local oscillator signals and an adder receiving and summing outputs from the two parallel mixers, by a track-and-hold circuit sampling the input signal based upon the local oscillator signal, or by a window averaging circuit averaging the input signal across a period of the local oscillator signal. The CDC architecture is suitable for fabrication on a single chip and offers solutions to virtually all problems found in conventional direct-conversion receivers.

Abstract: A tuning system and a tuning method in a broadcast signal receiver, in which a radio frequency (RF) spectrum signal adopting an inverting method is filtered by an asymmetric bandpass filter of a tuner to improve the receiving sensitivity. This tuning system includes a first mixer, a filter and a second mixer. The first mixer mixes a predetermined oscillation frequency with an inverted 8 VSB digital broadcast signal in the idle space between upper and lower normal NTSC broadcast signals of high frequency band received from a transmitter, transfers the upper NTSC broadcast signal to the lower side and the lower NTSC broadcast signal to the upper side, inverts the transferred NTSC broadcast signals, and changes the state of the 8 VSB digital broadcast signal into a normal state. The filter attenuates the inverted upper and lower NTSC broadcast signals output from the first mixer to a predetermined band and amplifies the normal 8 VSB digital broadcast signal into a predetermined band.

Abstract: A network-based computer testing system performs a concurrent testing procedure on computer products for quality assurance before shipment. The testing system comprises a communication port expander, an administrator, a network system, a product database, and a file server, and is characterized in that it allows the computer products being tested to be linked to the network system by means of a standard communication interface rather than a dedicated network interface. All the required testing files and associated data files are stored in the file server, so that they can be automatically downloaded to each computer product being tested via the network system and under control by the administrator.

Abstract: A method and system for reducing spurious signal content in transmitters is described. A lowpass or bandpass filter can be inserted after an input signal node of a transmitter to remove interfering signals generated, for example, from another input signal node of the transmitter. In this way integration of the transmitter circuitry is enhanced.

Abstract: An inversion prevention device to prevent inversion and provide the best S/N ratio detects a point where the zero crossing is missing from a quantized FM signal. An output is provided by switching between the digital FM signal and the output signal of at least one sideband suppression filter based on a result of the inversion detection. Alternatively, an output is provided by switching between the digital FM signal and a specified value based on a result of the inversion detection. As a further alternative, an output is provided by switching between the digital FM signal, the output signal of a low-sideband emphasis filter and the output signal of a sideband suppression filter based on a result of the inversion detection.

Abstract: The present invention provides a technique and system for modifying the modulation of the 66.5 kHz subcarrier in such a way that its spectrum will not overlap that required by the 57 kHz subcarrier, while at the same time maintaining compatibility with existing subcarrier receivers. A special signal is created whose spectral shape is asymmetrical with respect to the 66.5 kHz subcarrier. In the frequency domain, the lowest frequency part of the symmetrical spectrum is cut off, flipped about the carrier frequency and then added to the highest frequency part of the spectrum. This technique and system takes advantage of the fact that the receiver, with which the system is designed to operate, uses a sampling process which products frequency aliasing.

Abstract: In those transparent tone-in-band systems which employ a single oscillator in the transmitter to generate a frequency notch between upper and lower portions of a band which is to be transmitted, there is not complete freedom to choose the width of the notch. In the present invention which also uses a single transmitter oscillator, one portion of the band transmitted is selected using a filter. A mixer is used to change the frequency of the input band in a way which does not allow the lower sideband to "fold" back at zero frequency and interfere with the lower transmitted portion. A further filter selects the other portion for transmission from the output of the mixer.