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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 8179945 | Radio transmitter device Transmitter device which includes at least: a) one delay line designed to output M signals which are delayed in relation to each other, where M is an integer greater than 1; b) a memory, designed to store at least M digital samples of a waveform, where each digital ... | 05/15/2012 |
| 8174441 | Configurable calculating circuit and receiver having a plurality of configurable calculating circuits A configurable calculating circuit includes a multiplexer, a mixer and an accumulator. The multiplexer is for receiving input signals including at least a first and a second input signals, and selectively outputting at least one of the input signals. The mixer is fo... | 05/08/2012 |
| 8170079 | Code division multiple access signaling for modulated reflector technology A method and apparatus for utilizing code division multiple access in modulated reflectance transmissions comprises the steps of generating a phase-modulated reflectance data bit stream; modifying the modulated reflectance data bit stream; providing the modified mod... | 05/01/2012 |
| 8165184 | Apparatus and method for synthesizing and generating an SSC modulated signal An Arbitrary Waveform Generator (AWG) synthesizes and generates an SSC modulated signal by generating a modulating waveform with a frequency of an SSC modulation frequency, calculating the number of samples per data bit (SPUI) as a ratio of an upsampling frequency t... | 04/24/2012 |
| 8160117 | Line rate spread spectrum clock generator for use in line imaging systems A method of generating a spread spectrum clock signal for a line imaging device including receiving a line length value of the line imaging device, receiving a first clock signal indicative of a system timing signal in the line imaging device, generating a spreading... | 04/17/2012 |
| 8160118 | UWB dual burst transmit driver A dual burst transmitter for ultra-wideband (UWB) communication systems generates a pair of precisely spaced RF bursts from a single trigger event. An input trigger pulse produces two oscillator trigger pulses, an initial pulse and a delayed pulse, in a dual trigger... | 04/17/2012 |
| 8155166 | Reducing inter-carrier-interference in OFDM networks Embodiments of the invention disclose a system and a method for reducing inter-carrier interference (ICI) in a network, wherein the network uses orthogonal frequency division multiplexing (OFDM). The method generates, in a transmitter, a diversified signal, wherein ... | 04/10/2012 |
| 8155165 | Method of characterizing parameters and removing spectral components of a spread spectrum clock in a communications signal Parameters of a spread spectrum clock signal in a communication signal are characterized by acquiring voltage samples of the communication signal at a nominal time location of an edge of the communication signal. The voltage samples are converted to time samples and... | 04/10/2012 |
| 8155164 | Spread frequency spectrum waveform generating circuit The objective of this invention is to provide a circuit that generates a spread frequency spectrum waveform with shaped frequency spectrum distribution. The waveform generator has a spread spectrum waveform generating circuit that generates a waveform with a spread ... | 04/10/2012 |
| 8144745 | Radio communication device and constellation control method Provided is a radio communication device which can make Acknowledgement (ACK) reception quality and Negative Acknowledgement (NACK) reception quality to be equal to each other. The device includes: a scrambling unit (214) which multiplies a response signal af... | 03/27/2012 |
| 8139621 | Pulse generator for ultra-wide-band modulating systems and modulating systems using it A pulse generator circuit is provided. The pulse generator circuit has an input adapted to receive an input electrical quantity and an output at which an output electrical quantity is made available. A transfer characteristic establishes a relationship between said ... | 03/20/2012 |
| 8130811 | Assessing quality of service using digital watermark information The disclosure details methods of measuring the quality of service of received media signals by analyzing digital watermarks embedded in such signals. The quality of a received video or audio signal can thereby be assessed without having the original version of the ... | 03/06/2012 |
| 8116350 | Ultrawideband asynchronous tracking system and method A passive tracking system is provided with a plurality of ultrawideband (UWB) receivers that is asynchronous with respect to a UWB transmitter. A geometry of the tracking system may utilize a plurality of clusters with each cluster comprising a plurality of antennas... | 02/14/2012 |
| 8116349 | Method of multiple access communication in a centralized network based on an ultra wideband impulse physical layer A method of multiple access communication in a centralized network is based on an ultra wideband impulse physical layer allowing code-based multiple access. Each user is associated with a code, and the transmission is performed in an asynchronous manner in a propaga... | 02/14/2012 |
| 8111731 | Block scrambling for orthogonal frequency division multiple access A method of transmitting signals in a communication system over at least two time periods including generating a base signal comprising of at least two samples in each time period, selecting a scrambling sequence of length equal to or greater than the number of time... | 02/07/2012 |
| 8098707 | Ultra wideband receiver An ultra-wideband (UWB) receiver utilizing an Xn(n>1) device as a signal detector for short pulse(s), impulse(s) or ultra-wideband signal(s). The transmitted signal comes to antenna and passes through a band pass filter (BPF). The signal is fed into an X | 01/17/2012 |
| 8098708 | System and method for communicating data using constant envelope orthogonal Walsh modulation with channelization A radio device includes a transmitter having a modulator for generating M-PAM communications symbols containing communications data. A Fast Walsh Transform circuit orthogonally encodes and band-spreads a communications symbol using the Fast Walsh Transform. A freque... | 01/17/2012 |
| 8098706 | Signal generator for a DSSS or CDMA signal The invention relates to a signal generator for a DSSS or CDMA signal, comprising several spread sequence memories and a digital signal processor which pre-calculates the spread sequence in an initialization phase and deposits the same in the spread sequence memory,... | 01/17/2012 |
| 8094697 | Method and device for the demodulation of satellite radio navigation signals For demodulating radio navigation signals (s(t)) transmitted in spread spectrum and comprising a data channel modulated by a navigation message and a pilot channel not modulated by a navigation message, the data channel and the pilot channel are combined into one mu... | 01/10/2012 |
| 8094698 | Method for generating a spread spectrum clock and apparatus thereof A method for generating a spread spectrum clock includes the steps of providing a reference clock having a reference period; generating a plurality of output clocks respectively having different phases according to the reference clock; generating a first/second cont... | 01/10/2012 |
| 8090000 | Communication system and its method Communication performance is to be improved in a communication system in which a plurality of wireless communication lines share space. A transmitting device 2 transmits a transmission signal to a base station 6 a plurality of number of times. The base... | 01/03/2012 |
| RE43059 | Wireless communication system and method using grouping maximum likelihood detection Disclosed is a method for increasing a data transfer rate without an increase in the whole bandwidth using intrinsic spreading codes and orthogonal codes. The method uses interleaving, OFDM modulation/demodulation, and maximum likelihood detection (MLD) to overcome ... | 01/03/2012 |
| 8085830 | LAN by ultra-wideband system and method An ultra-wideband (UWB) system and method provide a local area network (LAN) and/or LAN access. LAN access versions of the UWB system includes an emulator layer and bridge that allow data to be transmitted between a LAN-UWB hybrid device and a LAN network switch, su... | 12/27/2011 |
| 8068531 | Method and apparatus for eliminating narrow band interference by means of windowing processing in spread spectrum system A device and method for eliminating narrow-band interference by windowing in a spread spectrum system are disclosed. The method comprises extracting N sampling points of data to perform frequency spectrum transform each time and obtaining N points of data; updating ... | 11/29/2011 |
| 8068530 | Signal acquisition in a wireless communication system Each base station transmits a TDM pilot 1 having multiple instances of a pilot-1 sequence generated with a PN1 sequence and a TDM pilot 2 having at least one instance of a pilot-2 sequence generated with a PN2 sequence. Each base station is assigned a specific PN2 s... | 11/29/2011 |
| 8059693 | System and method for communicating data using constant radius orthogonal walsh modulation A radio device includes a transmitter having a modulator for generating M-PAM communications symbols containing communications data. A Fast Walsh Transform circuit orthogonally encodes and band-spreads the communications symbols using the Fast Walsh Transform. A fre... | 11/15/2011 |
| 8054864 | Method for fast synchronization and frequency hop sequence detection in wireless sensor networks A method of synchronizing wireless devices includes establishing a recurring sequence of frequency channels at which the wireless devices are to communicate. The frequency channels are divided into a plurality of groups. Synchronization information is transmitted at... | 11/08/2011 |
| 8054863 | Ranging system and method A system for estimating range to an object comprising a system for estimating range to an object comprising a transmitter to transmit at least one UWB signal, a receiver to receive at least one UWB signal, a sampler to sample the received UWB signal depending on a p... | 11/08/2011 |
| 8050309 | Multipath discriminator module for a navigation system A multipath discriminator module and related methods are provided for communications and/or navigation systems that implement spread spectrum modulation. In one example embodiment, the module includes an input suitable for receiving navigation signals, a sampler for... | 11/01/2011 |
| 8050310 | Semiconductor device A semiconductor device includes a transmitting unit for receiving plural bits of data to modulate the data to a 1-bit pulse signal whose pulse width corresponds to a value of the data and transferring the pulse signal to a transfer line; and a receiving unit for rec... | 11/01/2011 |
| 8009719 | Digital spread spectrum method based on precise phase delta-sigma algorithm A method and apparatus for generating a spread spectrum reference clock is presented. A method and apparatus is presented for receiving a spread spectrum parameter from a phase lock loop, wherein the spread spectrum parameter includes a multiple-level parameter comp... | 08/30/2011 |
| 8009718 | Wireless transmitter and receiver for use in an ultra-wideband direct spread pulse communication system A wireless transmitter and receiver increase a desired/unwanted (D/U) ratio of a correlation output without increasing the number of data in an ultra-wideband direct spread pulse communication system for transmitting and receiving two series of data through differen... | 08/30/2011 |
| 7986723 | Delay estimation apparatus and method Delay estimation apparatus and method, comprising: a correlation step which a correlation function between a received signal and a supplied template waveform is generated, AD conversion step at which said correlation output generated at said correlation step is unif... | 07/26/2011 |
| 7983320 | Ultrawide-band communication system and method An impulse radio communications system using one or more subcarriers to communicate information from an impulse radio transmitter to an impulse radio receiver. The impulse radio communication system is an ultrawide-band time domain system. The use of subcarriers pro... | 07/19/2011 |
| 7983321 | Communication apparatus and communication method There is provided a communication apparatus compliant with ultra wide band communication systems for improving resistance to interfering waves in combination with DS-SS (direct sequence spread spectrum). There is provided a training section based on short code sprea... | 07/19/2011 |
| 7978747 | Waveform design hopping system and method A method of transmitting a spread spectrum signal in a single communication session between a transmitter and a receiver, stores a series of N unique waveform designs and a hopping sequence in a transmitter memory. A signal is transmitted to a receiver according to ... | 07/12/2011 |
| 7965758 | Cell isolation through quasi-orthogonal sequences in a frequency hopping network The present technology relates to protocols relative to utility meters associated with an open operational framework. More particularly, the present subject matter relates to protocol subject matter for advanced metering infrastructure, adaptable to various internat... | 06/21/2011 |
| 7961773 | Weighted open loop power control transmitter A weighted open loop power control transmitter for controlling transmission power levels using a spread spectrum time division duplex (TDD) technique having frames with timeslots for communication includes a demodulator configured to receive a transmitted signal fro... | 06/14/2011 |
| 7957450 | Method and system for frame formats for MIMO channel measurement exchange A method and system for frame formats for MIMO channel measurement exchange is provided. Aspects of a method for communicating information in a communication system may comprise transmitting data via a plurality of radio frequency (RF) channels utilizing a plurality... | 06/07/2011 |
| 7933308 | Signal transmission and reception device A signal transmission and reception device is disclosed that can be made compact and has wide-band band-pass characteristics. The signal transmission and reception device includes a first filtering unit that is composed of a distributed constant circuit and is capab... | 04/26/2011 |
