Patent application number | Description | Published |
20080303575 | PULSE GENERATING CIRCUIT AND UWB COMMUNICATION SYSTEM - A pulse generating circuit includes a starting circuit which generates m (two or larger integer) starting signals at predetermined time intervals based on a generation starting signal, and m pulse wave generating sub circuits which have the same characteristics and generate pulse waves having pulse width Pw for n cycles (n: 1 or larger integer) based on the respective m starting signals. | 12-11-2008 |
20090058490 | PULSE GENERATING CIRCUIT, ELECTRONIC DEVICE USING THIS PULSE GENERATING CIRCUIT, CELLULAR PHONE SET, PERSONAL COMPUTER, AND INFORMATION TRANSMITTING METHOD USING THIS CIRCUIT - A pulse generating circuit includes a plurality of delay elements cascaded so as to constitute a predetermined loop, wherein when a predetermined input pulse is supplied to a leading end of the series connection, an effective frequency multiplication is applied to signals which appear at a plurality of portions out of the node portions among the plurality of delay elements and the terminal end portion of the series connection by a logical circuit to obtain an output pulse having a higher frequency than the input pulse. | 03-05-2009 |
20090096666 | POSITIONING SYSTEM - A positioning system is provided having a first signal source for originating synchronous signals, and a second signal source for originating a signal which is not synchronous with the signal from the first signal source. The system determines, based on a signal propagation time and signal propagation speed from the first or second signal source, the distance to this signal source so as to determine a position of a receiving point. | 04-16-2009 |
20090131130 | ELECTRONIC APPARATUS AND WIRELESS COMMUNICATION TERMINAL - In an electronic apparatus which is equipped with a first transmission unit for performing a first communication by an electromagnetic wave; a second transmission unit for performing a second communication by an electromagnetic wave; and a reception unit for receiving a signal transmitted from the second transmission unit, the electronic apparatus is comprised of an antenna arranged by a radiator having a size which is smaller than 1/(2π) of a wavelength of a use electromagnetic wave, which is connected to at least the second transmission unit and the reception unit. | 05-21-2009 |
20090270037 | INFORMATION TRANSMITTING METHOD, ELECTRONIC APPARATUS, AND WIRELESS COMMUNICATION - An electronic apparatus is provided including a wireless communication unit transmitting first category information and a wire communication unit transmitting second category information, and the first and second category information items are transmitted in parallel by the wireless communication unit and the wire communication unit. | 10-29-2009 |
20100127770 | ELECTRONIC CIRCUIT AND ELECTRONIC DEVICE INCLUDING ELECTRONIC CIRCUIT - An electronic circuit includes: a circuit that generates a first input signal and a second input signal that are balanced differential signals; a first envelope detection circuit that includes a first input terminal, a second input terminal, and a first output terminal, the first input signal being input to the first input terminal via a first impedance element, the second input signal being input to the second input terminal via a second impedance element, and outputs from the first output terminal a first output signal that is the sum of the square of the first input signal and the square of the second input signal; a second envelope detection circuit that includes a third input terminal, a fourth input terminal, and a second output terminal, the first input signal being input to the third input terminal via a third impedance element, the second input signal being input to the fourth input terminal via a fourth impedance element, and outputs from the second output terminal a second output signal that is twice the value obtained by squaring the average of the first input signal and the second input signal; and a differential circuit that generates a differential signal from the first output signal and the second output signal. | 05-27-2010 |
Patent application number | Description | Published |
20090096292 | PULSE GENERATION CIRCUIT AND UWB COMMUNICATION DEVICE - A pulse generation circuit for outputting a pulse with a predetermined waveform to an output terminal in response to a start signal includes a circuit adapted to generate a plurality of signals {Di|i denotes an integer in a predetermined range}, which has predetermined amounts of time differences from the start signal, based on the start signal, a plurality of power supplies {Ej|j denotes an integer} adopted to supply electric energy of a predetermined electric quantity, and a switching circuit adapted to sequentially switch the power supplies {Ej} in a predetermined order in accordance with logical function values of at least a part of the signals {Di} to connect the power supplies {Ej} to the output terminal. | 04-16-2009 |
20090108901 | PULSE GENERATION CIRCUIT AND UWB COMMUNICATION DEVICE - A pulse generation circuit for outputting to an output terminal (OT) includes an inverter delay circuit (IDC) for processing a start signal with a predetermined delay; a first switching circuit (SC) adapted to connect the OT to a first voltage when a logical product of the IDC is true, and to connect the OT to a second voltage when a logical sum of the IDC is false; a second SC adapted to connect the OT to the first voltage when a logical product of the IDC is true, and to connect the OT to the second voltage when a logical sum of the IDC is false; and a start signal control circuit adapted to input the start signal to the IDC with a delay when the first SC is activated, and to input the start signal to the IDC without the delay when the second SC is activated. | 04-30-2009 |
20090219061 | PULSE GENERATOR CIRCUIT AND COMMUNICATION APPARATUS - A pulse generator circuit that outputs pulses having a predetermined shape from an output terminal based on a start signal includes a timing generator circuit that generates (n+1) signals (n is an integer greater than or equal to 2), the phases of which sequentially change at predetermined time intervals from the point when the phase of the start signal changes, first and second power supplies that supply predetermined potentials, n impedance devices, and a switching circuit that connects the output terminal to the first or second power supply in a predetermined order according to the value of a logic function based on the (n+1) signals via the corresponding impedance device. | 09-03-2009 |
20090219064 | PULSE GENERATOR CIRCUIT AND COMMUNICATION APPARATUS - A pulse generator circuit that outputs pulses having a predetermined shape from an output terminal based on a start signal includes a timing generator circuit that generates (n) signals (n is an integer greater than or equal to 2), the phases of which sequentially change at predetermined time intervals from the point when the phase of the start signal changes, a pulse width signal generator circuit that generates a first pulse width signal and a second pulse width signal having a pulse width that corresponds to the duration of the pulses to be generated based on the start signal, a first filter circuit to which the first pulse width signal is inputted, the first filter circuit limiting the band of the first pulse width signal, a second filter circuit to which the second pulse width signal is inputted, the second filter circuit limiting the band of the second pulse width signal, first and second power supplies that supply predetermined potentials, a first variable impedance circuit whose impedance value is controlled by the output value from the first filter circuit, a second variable impedance circuit whose impedance value is controlled by the output value from the second filter circuit, and a switching circuit that alternately connects the output terminal to the first power supply via the first variable impedance circuit or the second power supply via the second variable impedance circuit using a logic function value based on at least part of the n signals. | 09-03-2009 |
20090261886 | MIXER CIRCUIT, COMMUNICATION DEVICE, AND ELECTRONIC EQUIPMENT - A mixer circuit includes a grounded-gate amplifier disposed between an input node and a first node, and first through nth (n denotes an integer equal to or greater than 1) series transistor rows disposed between the first node and a second node, each of the first through nth series transistor rows includes two or more transistors coupled in series between the first node and the second node, and the transistors constituting the first through nth series transistor rows are controlled by first through mth (m denotes an integer equal to or greater than 2) control signals. | 10-22-2009 |
20090262784 | MIXER CIRCUIT AND COMMUNICATION APPARATUS INCLUDING MIXER CIRCUIT - A mixer circuit which outputs a first output signal and a second output signal, in which are mixed a first input signal and a second input signal, includes a first grounded source amplifier circuit which amplifies the first input signal, a second grounded source amplifier circuit which amplifies the second input signal, a first signal output unit which outputs the first output signal, a second signal output unit which outputs the second output signal, a first transistor group including n rows and m columns (n is an integer equal to or greater than two, m is an integer equal to or greater than two) of transistors connected between the first grounded source amplifier circuit and the first signal output unit, a second transistor group including n rows and m columns of transistors connected between the first grounded source amplifier circuit and the second signal output unit, a third transistor group including n rows and m columns of transistors connected between the second grounded source amplifier circuit and the first signal output unit, a fourth transistor group including n rows and m columns of transistors connected between the second grounded source amplifier circuit and the second signal output unit, and n×m×k (k is 1 or 2) control signal lines to which n×m×k control signals which drive the first transistor group and the second transistor group, and drive the third transistor group and the fourth transistor group. | 10-22-2009 |
20090278600 | ELECTRONIC CIRCUIT AND ELECTRONIC DEVICE - An electronic circuit includes: a first amplifying circuit to which a first input signal is inputted; a second amplifying circuit to which a second input signal is inputted; a first drain ground amplifying transistor provided between a first power source node and an output node with control over the gate by the output from the first amplifying circuit; a second drain ground amplifying transistor provided between the first power source node and the output node with control over the gate by the output from the second amplifying circuit; a common load element provided between the output node and a second power source node; a first negative feedback path for negative feedback from the output node to the input of the first amplifying circuit; and a second negative feedback path for negative feedback from the output node to the input of the second amplifying circuit. | 11-12-2009 |
20150338831 | Electronic Device - A small electronic device enables improving transmission and reception performance with stable operation. An example of the electronic device is an electronic wristwatch having a display; a circuit board disposed on one side of the display; an antenna is disposed on the opposite side of the circuit board as the display, and includes a dielectric layer, a ground conductor disposed on one side of the dielectric layer, and a radiating conductor disposed on the other side of the dielectric layer. The ground conductor is disposed on the surface of the dielectric layer on the side near the circuit board, and is connected to the ground potential of the circuit board. The radiating conductor is disposed on the surface of the dielectric layer on the side far from the circuit board, and is connected to the signal potential of the circuit board. | 11-26-2015 |