Abstract:
Binary forward error correcting (FEC) encoding is applied to a stream of input bits, to generate a stream of coded bits. The coded bits are mapped to multiple binary streams. In some embodiments, at least one coded bit is mapped to more than one of the binary streams and none of the binary streams are identical to each other. Stream-specific modulations are applied to the binary streams. Non-binary FEC encoding could be applied after the stream-specific modulations.
Abstract:
An imaging system that utilizes deterministic bit sequences modulated onto an in-phase component of a carrier frequency and continuously transmitted via a transducer and received for imaging a medium and/or environment is provided. The received signal is demodulated by an in-phase demodulator and a quadrature demodulator and the demodulated components are processed to provide a spatial mapping of a medium or environment being imaged.
Abstract:
Receiving and demodulating in a mobile device Orthogonal Frequency Division Multiplexed (OFDM) modulated signal into OFDM baseband signal for converting OFDM baseband signal into spread spectrum baseband signal for modulating and transmitting the spectrum signal. The spread spectrum baseband signal contains cross-correlated in-phase and quadrature phase baseband signals. Receiving and demodulating a video spread spectrum modulated signal for providing video spread spectrum baseband signal for viewing baseband video signal. Transmitting and receiving OFDM video and voice signals in Video Internet Protocol (ViIP) and in Voice Over Internet Protocol (VoIP) Wi-Fi networks. Processing a touch screen generated signal into a processed touch screen control signal for use by said user, to launch browser from the screen of said mobile device and using a fingerprint generated signal for providing from fingerprint signal a fingerprint authentication signal. Processing a received demodulated location finding modulated signal with a photo camera generated signal and modulating and transmitting the demodulated location finding modulated signal with the camera generated signal.
Abstract:
Methods used in Modulator and Demodulator (MODEM) for mobile internet and cellular system connected mobile devices and phones for reception of Global Positioning System (GPS) modulated signal, video Orthogonal Frequency Division Multiplexed (OFDM) modulated signal and spread spectrum signals controlled by touch screen generated signals and using fingerprint authentication. Methods for generating in mobile devices and in phones in-phase and quadrature phase cross-correlated Time Constrained (TCS) waveforms and cascaded Long Response (LR) filter filtered signals for modulation and transmission of these cross-correlated signals.
Abstract:
A data processor selects a set of BOC correlations in accordance with a BOC correlation function for the sampling period if the primary amplitude exceeds or equals the secondary amplitude for the sampling period. An electronic data processor determines whether the receiver is operating in a steady-state mode by evaluating the detected primary amplitude. The data processor selects and/or processes a set of BOC correlations for the sampling period to track a carrier of the received composite signal if the receiver is operating in the steady-state mode. In one embodiment, the data processor forms a first code error using the selected BOC correlations with a first chip spacing to drive the code tracking.
Abstract:
A ship based cellular and satellite transceiver receives, demodulates and processes data, voice and video signals from a satellite transmitter and provides the processed signals in cascade to a OFDM and to a CDMA modulator and transmitter for transmission to a ship based mobile unit. The OFDM signal is transmitted in a Wi-Fi network and the CDMA signal is transmitted in frequency bands used by cellular phones and cellular connected devices. The ship based transceiver receives from a mobile unit, e.g. from a cellular phone or a computer an OFDM or a CDMA signal generated and transmitted by the mobile unit and receives, demodulates and processes the cellular phone transmitted signal and provides these processed signals for cascade processing, modulation and transmission to a satellite.
Abstract:
A transmitting apparatus includes an OFDM modulator that generates a first modulation symbol by modulating a first information signal using a first modulation scheme, a signal point of the first modulated information signal being at a first position in an in-phase quadrature-phase plane. A second modulation symbol by modulating a second information signal using the first modulation scheme, and by changing a second position at which a signal point of the modulated second information signal is arranged to a third position in the in-phase quadrature-phase plane, and an OFDM modulation signal including the first modulation symbol and the second modulation symbol, wherein the OFDM modulation signal comprises a plurality of subcarriers.
Abstract:
Mobile device for receiving, demodulating, processing and storing an internet network or a cellular system provided photo, video or television (TV) signal. Processing photo and video signals generated in a cellular phone or mobile device and providing photo and video to a television (TV) set.Processing, modulating and transmitting a baseband video signal into a processed Orthogonal Frequency Division Multiplex (OFDM) modulated signal and transmitting OFDM modulated signal to a TV set or to a other mobile (portable) device. Method for receiving and processing a Global Positioning System (GPS) generated signal and touching the screen of a mobile phone and generating a processed control signal. Storing and transmitting a video signal and receiving, demodulating and processing a Code Division Multiple Access (CDMA) modulated signal into a demodulated processed in-phase and quadrature-phase cross-correlated signal and demodulating and processing a Time Division Multiple Access (TDMA) modulated signal into a demodulated processed in-phase and quadrature-phase cross-correlated signal.
Abstract:
Cardiac stimulation control and communication system, including a pacemaker, having a processor for processing input signals to and/or from one or more electrodes located in a heart. A signal processing network for receiving input signals and for providing a Time Division Multiple Access (TDMA), a filtered signal, spread spectrum signal and/or Orthogonal Frequency Division Multiplex (OFDM) signal to a selector for selection and transmission. In-phase and quadrature-phase cross-correlated spread spectrum signals are provided to a modulator for modulation and transmission of signals received from one or more electrodes or probes or sensors used by a patient. An implantable cardiac stimulation device and a telemetry transmitter and telemetry wired or wireless receiver, for transmission and reception of wireless and or wired signals, wherein said telemetry signals are for monitoring and/or controlling the implantable cardiac stimulation device. A pacemaker, receiver and demodulator for receiving and demodulating a Global Positioning System (GPS) receiver for receiving location finder signals or a receiver and demodulator for receiving and demodulating other than GPS signals and for providing location finder signals and for connecting said location finder signals to a transmitter for transmitting said location finder signals. A Time Division Multiple Access (TDMA) signal is provided to a non-quadrature modulator for non-quadrature modulation of TDMA signal and a filtered signal is processed into a cross-correlated spread spectrum in-phase and quadrature-phase filtered signal and provided to a quadrature modulator for quadrature modulation of said cross-correlated spread spectrum filtered signal. The transmitted signals are received and used by a nurse or other health professionals.
Abstract:
On a transmitting side, a spread modulated signal that has undergone spread spectrum processing and an information modulated signal that has not undergone spread spectrum processing are multiplexed in a same frequency band. On the receiving side, the specific modulated signal is first demodulated by a spread spectrum demodulation section, then a replica signal of the specific modulated signal is generated by a spread spectrum modulated signal regeneration section, and the information signal that has not undergone spread spectrum processing is extracted by eliminating the replica signal from the multiplex signal. Thus, even when a large number of information signals are transmitted in a same frequency band, these signals can be separated and demodulated satisfactorily on the receiving side.