Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7372396 | Transmit-receive FM-CW radar apparatus A transmit-receive FM-CW radar apparatus according to one mode of the invention comprises: a mixer for downconverting an IF signal; a switch provided on the input side of the mixer; and a switch controller for controlling the switch on and off in different modes and... | 05/13/2008 |
| 7372804 | Multiplex communication system and method Disclosed are the multiplex communication system and the method therefore. A fault detection part of a duplex switching device detects it as generation of fault when recognizable signals are not detected from a connected line within a prescribed time. When the fault... | 05/13/2008 |
| 7372830 | Dynamic subchannel and bit allocation in a multiuser-MIMO/OFDMA system A resource allocation method in a multiuser-multiple-input multiple-output/orthogonal frequency division multiple access (MIMO/OFDMA) system. In the multiuser-MIMO/OFDMA system feedback information is received from terminals. A channel gain and a transmission rate f... | 05/13/2008 |
| 7372915 | Transmitting method and transmitting device, receiving method and receiving device, and transfer method and transfer system Data broadcast data, which is broadcast in data broadcasts, is constructed by disposing, for example, EMD (Electric Music Distribution) links required to acquire song data as actual broadcast data, which is broadcast in actual broadcasts by a transmitting device, th... | 05/13/2008 |
| 7372916 | Process and devices for transmitting digital signals over buses and computer program product therefore Digital signals are transmitted on a bus at given instants selectively in a non-encoded format and an encoded format. The decision whether to transmit the signals in non-encoded format or in encoded format is taken in part, based on a comparison of the signal to be ... | 05/13/2008 |
| 7372930 | Method to synchronize data and a transmitter and a receiver realizing said method A method to realize synchronization of data (DAT) sent from a transmitter (TX) to the receiver (RX), with a signal (SIG) available in the receiver (RX). The method includes the following steps: in the receiver (RX) generating trigger signals (T) from the signal (SIG... | 05/13/2008 |
| 7373118 | Method and system for facilitating transmission of analog signals to a wireless terminal A wireless network may have a digital base station and a radio link converter unit. The digital base station may receive bearer data for each of a plurality of channels, establish control information for each of the plurality of channels, and output a digital signal... | 05/13/2008 |
| 7372889 | Mobile station capable of and a method for generating chip patterns for transmission A mobile station that wirelessly transmits to a base station by DS-CDMA a signal spread by multiplying a spreading code includes a chip-pattern generating unit that generates a predetermined chip pattern by performing chip repetition for a predetermined number of re... | 05/13/2008 |
| 7373161 | Method and arrangement for power control A method for setting a power control level (600) in a wireless communication system. The method includes the steps of obtaining (620) transmission information from a wireless subscriber unit, and modifying a power control level and/or a communication c... | 05/13/2008 |
| 7370531 | Detection circuits, detection method and systems of measuring physical quantities A detection circuit 30 has a unit 30a for inputting a signal to be detected by synchronized wave detection, a unit 30b for inputting a standard signal for the signal to be detected and a unit 30c for inputting an offs... | 05/13/2008 |
| 7369624 | Carrier suppression type modulator with encoded modulating signals A carrier suppressed information signal modulation arrangement employs a plurality of serially coupled modulators. Each of the serially coupled modulators has a carrier input, a modulating signal input and a modulated carrier output. A carrier is applied to the carr... | 05/06/2008 |
| 7369616 | Simultaneous multi-band transmission on a printed circuit board The present invention is an apparatus and method for increasing the amount of data on a transmission path on a printed circuit board. Conventional methods allow only one data signal to be transmitted on the transmission path. The present invention uses multiple tran... | 05/06/2008 |
| 7369813 | Fast calibration of electronic components The number of measurements needed to calibrate an electrical device is reduced. Apparatus and methods minimize output of one or more unwanted signals by determining a calibration setting, in a minimal number of measurements, from determined distances to a best setti... | 05/06/2008 |
| 7369811 | System and method for sensitivity optimization of RF receiver using adaptive nulling The present invention provides sensitivity enhancement for a single antenna RFID interrogating device by separately coupling a nulling signal formed using a portion of a transmit signal into a receiver. The phase and amplitude of nulling signal can be adjusted so th... | 05/06/2008 |
| 7369829 | Signal reception apparatus and method for multi-band ultra-wideband communication systems A signal reception apparatus and method for communication systems. The signal reception apparatus for communication systems according to the present invention is applicable to communication environments in which a plurality of sub-bands having different frequency ba... | 05/06/2008 |
| 7369598 | Ultra-wideband receiver and transmitter A waveform-adaptive ultra-wideband (UWB) transmitter and noise-tracking UWB receiver for use in communications, object detection and radar applications. In one embodiment, the output of an oscillator is gated by a low-level impulse generator either directly or throu... | 05/06/2008 |
| 7366485 | Multimode wireless transmitter and a portable wireless device using the same The circuits of a multimode wireless transmitter are complex and large, and thus difficult to incorporate in a portable wireless device. This problem is solved for a multimode wireless transmitter by enabling the first frequency mode circuit and the second frequency... | 04/29/2008 |
| 7366491 | Noise cancel circuit A raw signal is delayed in a delay circuit (1) and then supplied to one of the input terminals of a selection circuit (8). The raw signal is also supplied to another delay circuit (2) to be delayed. Subsequently, data of this delayed signal is p... | 04/29/2008 |
| 7366935 | High speed bus with alignment, re-timing and buffer underflow/overflow detection enhancements In a networked system in which high speed busses interconnect sources and destinations of data, systems for and methods of data alignment, data re-timing, and circular buffer underflow/overflow detection, are described. ... | 04/29/2008 |
| 7366531 | Uplink synchronization detecting method of mobile communication system An uplink synchronization detecting method of a mobile communication system is disclosed. A time period in which a quality of a pilot is measured is divided into multiple accumulation sections, a synchronization detection threshold value is set for each section, and... | 04/29/2008 |
| 7366251 | Transmitter for transmitting a combined clock signal and a digital data signal modulated on a carrier wave A transmitter circuit for transmitting a sine wave modulated with digital data, where the sine wave includes a clock signal, and a receiver circuit for demodulating the transmitted sine wave, where the receiver circuit extracts the clock signal and the digital data ... | 04/29/2008 |
| 7366266 | Space time block coded transmit antenna diversity for WCDMA A mobile communication system is designed with an input circuit coupled to receive a first plurality of signals (rj(i+τj), i=0−N−1) during a first time (T0-T1) from an external source and coupled to receive a second plurality... | 04/29/2008 |
| 7366480 | Radio communication device In the radio communication device of the present invention, a first carrier transmission modulation wave outputted from a first signal generator 101 is amplified by a first power amplifier 103 and transmitted from a first antenna element 107 thr... | 04/29/2008 |
| 7366470 | Inter-modulation distortion compensation An Inter-modulation distortion measurement and correction method which could be applied over a communication channel that is a combination of either or both analog and digital channels. This method is applicable for a communication system between a modem pair. ... | 04/29/2008 |
| 7366150 | Indoor local area network system using ultra wide-band communication system An indoor local area network (LAN) system using an ultra wide-band (UWB) communication system is provided. The indoor LAN system includes at least one remote terminal including a UWB module for converting input digital data to be transmitted into an analog signal of... | 04/29/2008 |
| 7366243 | Methods and apparatus for transmitting non-contiguous spread spectrum signals for communications and navigation A technique for transmitting a spread spectrum signal using plural non-contiguous frequency bands separated by segments of frequency spectrum excluded from use involves: generating a digital time-domain spread spectrum signal; converting the time-domain signal to a ... | 04/29/2008 |
| 7366119 | Data receiving and transmitting method with coding type determination Disclosed is a data communication system transmitting data using adaptive modulation at an acknowledged data transfer mode simultaneously. The present invention includes a first step of monitoring variation of radio environments by a receiving end receiving packets ... | 04/29/2008 |
| 7366482 | Transmission device, transmission output control method, and radio communications device Either linear operating mode or saturation operating mode is set as the operating mode of a high-frequency power amplifier on the basis of an operating mode set signal. The gain of a variable gain amplifier provided in front of the high-frequency power amplifier and... | 04/29/2008 |
| 7366272 | Method and device for transmitting packet data in mobile communication system There is provided a device and method for transmitting packet data in a mobile communication system. A sub-code generator generates a plurality of sub-codes with the same or different code rates for the input of a PLP (Physical Layer Packet) information bit stream. ... | 04/29/2008 |
| 7362694 | Programmable identity of I and Q channels A multiplexing scheme to select either an I component or a Q component for input to I channel and Q channel inputs of a baseband receiver. The selection of which of the I or Q component to place on the I channel input and which other to place on the Q channel input ... | 04/22/2008 |
| 7362826 | Receiver including an oscillation circuit for generating an image rejection calibration tone A receiver circuit includes an oscillator circuit configured to generate a calibration tone and a phase locked loop (PLL) reference signal. An output frequency of the VCO may be divided by respective amounts to derive a desired calibration tone frequency and a desir... | 04/22/2008 |
| 7362820 | Apparatus and method for modulating and digitally predistorting a signal in a multiple modulation schemes A programmable modulator (100) is programmable to operate in either of a GMSK or 8PSK mode. When operating in a GMSK mode, a signal modulating circuit 105 receives (210) a bit stream (110), maps the bit stream (110) to a phase valu... | 04/22/2008 |
| 7363278 | Copyright detection and protection system and method A method for detecting against unauthorized transmission of digital works comprises the steps of maintaining a registry of information permitting identification of digital copyrighted works, monitoring a network for transmission of at least one packet-based digital ... | 04/22/2008 |
| 7362735 | Quality dependent data communication channel A data channel to transmit data from a transmitter to one or more of a plurality of receivers, each of which intermittently reports to the transmitter its reception quality of signals transmitted by the transmitter. The transmitter transmits the data in frames which... | 04/22/2008 |
| 7359259 | Method for transmission and reception of a data signal on a line pair, as well as a transmission and reception circuit for this purpose Apparatuses and methods for transmitting and receiving a data signal on a line pair having a first transmission line and a second transmission line are provided. In one embodiment, a data signal which represents the data to be transmitted by means of a sequence of f... | 04/15/2008 |
| 7358888 | System and method for intrusion detection using a time domain radar array A system and method for highly selective intrusion detection using a sparse array of time modulated ultra wideband (TM-UWB) radars. Two or more TM-UWB radars are arranged in a sparse array around the perimeter of a building. Each TM-UWB radar transmits ultra wideban... | 04/15/2008 |
| 7359451 | System and method for wirelessly transmitting and receiving digital tokens for use in electronic gameplay A system and a method for the transmission and reception of digital data wirelessly using acoustic tones comprises a device having an encoder, a modulator system, a demodulator system, and a decoder. The modulator system uses a plurality of acoustical tones with a f... | 04/15/2008 |
| 7359452 | Systems and methods for designing a high-precision narrowband digital filter for use in a communications system with high spectral efficiency Systems and methods for transmitting information at very high data rates through narrowband communication channels are provided. The systems and methods involve modulating a message signal with a novel return-to-zero, abrupt phase modulation technique and filtering ... | 04/15/2008 |
| 7359453 | System and method for transitioning between modulation formats in adjacent bursts triggering on ramps A modulation system and method are provided for transitioning between modulation formats in adjacent transmit bursts. The modulation system includes a data interface, first modulation circuitry operating according to a first modulation format, and second modulation ... | 04/15/2008 |
| 7360147 | Second stage SOVA detector A second stage SOVA detector comprises a dynamic state reordering block with inputs that receive absolute state domain data from a first stage SOVA detector. The second stage SOVA detector provides relative state domain data outputs and selection bit outputs. The se... | 04/15/2008 |
