SIGNAL PHASE COMPARISON UNITS WHICH

Brand Owner Address Description
SA SANDERS ASSOCIATES, INC. Nashua NH SIGNAL PHASE COMPARISON UNITS WHICH PRODUCE AN OUTPUT SIGNAL PROPORTIONAL TO THE PHASE DIFFERENCE BETWEEN THE RECEIVED AND A REFERENCE SIGNAL; DEMODULATORS; INERTIAL SWITCHES; POWER INVERTERS; POWER SUPPLIES; ANTENNA COMPONENTS-NAMELY, ARCHIMEDIAN SPIRAL ANTENNAS, CAVITY-BACKED SPIRAL ANTENNAS, LOG CONICAL SPIRAL ANTENNAS, SLOT ANTENNAS, HORN ANTENNAS, CAVITY-BACKED DIPOLE ANTENNAS, LUNEBERG LENS ANTENNAS, PHASED ARRAY ANTENNAS, MULTI-PORT BICONICAL ANTENNAS, LONG WIRE ANTENNAS-NAMELY, TRAVELING WAVE ARRAY ANTENNAS, LOG-PERIODIC ARRAY ANTENNAS, PHOMBOID ARRAYS, FEED AND PHASING NETWORKS FOR ARRAY ANTENNAS, AVIATION ANTENNAS AND COMPONENTS THEREFORE, AND RADOMES; CAPACITORS; INDUCTORS; CONNECTORS; PRINTED CIRCUIT COMPONENTS-NAMELY, BOARDS, SWITCHES, CABLES, HEATER UNITS, MULTILAYER AND FLEXIBLE UNITS; INFORMATION DISPLAY SYSTEMS WHEREBY ALPHANUMERICS AND SYMBOLS ARE PRESENTED ON A CRT DISPLAY SCREEN; SERVO-AMPLIFIERS; RESISTORS; TUBES; DIODES, TRANSISTORS; TUBE DEFLECTION COILS; TRANSFORMERS; LIGHT SENSING SYSTEMS FOR EDITING AND CONTROLLING ELECTRONIC DISPLAYS; ELECTRIC FORCE MOTORS; FLOW SWITCHES; SERVO ACTUATORS; AND MICROWAVE COMPONENTS-NAMELY, FREQUENCY SOURCES AND MULTIPLIER UNITS, MODULATOR UNITS, OSCILLATOR UNITS, SIGNAL SWITCH UNITS, SWITCH CONTROL CIRCUITS AND DRIVERS, SIGNAL DETECTOR UNITS, POWER DIVIDER UNITS, ATTENUATORS, FILTER UNITS, MIXER UNITS, PHASE SHIFTERS, HYBRID DEVICES, CIRCULATORS, ISOLATORS, ROTARY JOINTS, TRANSMISSION LINES, AND MICROWAVE MODULES;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. A tracking error detection apparatus comprises a phase difference detection circuit for receiving two sequences of digital signals, and performing phase comparison using a distance between zerocross points of the two sequences of digital signals to output a result of phase comparison, and an LPF for generating a tracking error signal from the result of phase comparison. The phase difference detection circuit does not carry out phase composition in a position that is not appropriate as a target position to perform phase comparison, and outputs the result of phase comparison as a pulse signal corresponding to one sampling clock. Therefore, even when a disc is played at CAV or a flaw or the like exists on the disc, an accurate tracking error signal can be detected.