| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 332115000 | Pulse amplitude modulator | 6 |
| 20090108951 | METHODS AND APPARATUS FOR REDUCING PEAK-TO-RMS AMPLITUDE RATIO IN COMMUNICATION SIGNALS - A pulse amplitude modulation (PAM) signal generator that injects a copy of a pulse into the PAM baseband signal prior to frequency upconversion and power amplification. The pulse comprises a function of, or an extra copy of, a pulse in the PAM baseband signal. The pulse injector analyzes the PAM baseband signal for times when a predetermined threshold is exceeded and forms a pulse that is constructed and arranged to reduce the amplitude of the PAM baseband signal to a desired peak amplitude when the pulse is added to the PAM baseband signal. | 04-30-2009 |
| 20090174495 | CONTACTLESS IC CARD SYSTEM - In a contactless IC card system, a modulating circuit manufactured in an IC form is operable at a high power efficiency. The demodulating apparatus is configured to include: first signal output means for outputting a first output signal having a predetermined phase with respect to that of an input signal, a second signal output means for outputting a second output signal having a predetermined phase with respect to that of the input signal, gate means for gating at least the second output signal, calculation means for adding, or subtracting the first output signal and the second output signal; and control means for controlling the operation of the gate means in response to a logic level of input data. | 07-09-2009 |
| 20130147570 | METHODS AND APPARATUS FOR LOAD INTERROGATION USING POWER USAGE MODULATION - Methods and apparatus provide for: detecting an identification (ID) number associated with a piece of information technology (IT) equipment using a first computer-readable and executable program running on the piece of IT equipment; modulating a power usage of the piece of IT equipment as a function of the ID number using the first program running on the piece of IT equipment; monitoring the power usage of the piece of IT equipment using a power distribution unit (PDU) that provides operating power to the piece of IT equipment; and detecting modulation in the power usage of the piece of IT equipment caused by the first program running on the piece of IT equipment, such detection being performed using a second computer-readable and executable program running on the PDU. | 06-13-2013 |
| 20140184349 | APPARATUS, SYSTEM AND METHOD FOR CONFIGURING SIGNAL MODULATION - Techniques and mechanisms for configuring logic to implement a signal modulation. In an embodiment, the logic includes a finite impulse response (FIR) module comprising circuitry. The selection circuitry may be operable to concurrently receive signals from latch circuitry of the FIR module and, based on the signals, to select an input group of the selection circuitry and to output a voltage identifier. In another embodiment, configuration logic is operable to set an operational mode which determines a total number of concurrent input signals, received by the FIR module, which the FIR module will use to select an input group for generating an output representing a voltage level. | 07-03-2014 |
| 332116000 | Including discrete semiconductor device having three or more electrodes | 2 |
| 20100117753 | RADIO FREQUENCY MODULATOR - A radio frequency modulator system having a radio frequency amplifier controlled by a pulse modulator. The pulse modulator includes: a first switching circuit response to an input pulse for coupling a dc voltage relative to a reference potential to the output electrode when the radio frequency signal is to be amplified by the radio frequency amplifier and for decoupling the dc voltage from the output electrode when the radio frequency signal is to be decoupled from the output electrode wherein charge is stored in the storage element when the dc voltage is coupled to the output electrode; and: a second switching circuit responsive to the input pulse for discharging the stored charge when the dc voltage is decoupled from the output electrode. | 05-13-2010 |
| 20110316640 | GATE PULSE MODULATION CIRCUIT AND SLOPING MODULATION METHOD THEREOF - Exemplary gate pulse modulation circuit and sloping modulation method applied thereto are provided. The gate pulse modulation circuit has an output terminal and includes a voltage modulation circuit and a comparator control circuit. The voltage modulation circuit is electrically coupled between a gate power supply voltage and a second voltage and subjected to the control of a sloping control signal to perform a sloping operation and then output a sloped voltage signal. The comparator control circuit includes a comparing unit and a switching unit. First and second input terminals of the comparing unit respectively are electrically coupled to a node and a first voltage. During the voltage modulation circuit performing the sloping operation, a magnitude relationship between a voltage on the node and the first voltage decides on-off states of the switching unit and thereby decides the moment of the first voltage delivered to the output terminal. | 12-29-2011 |
