Assignee: Icom Incorporated

Location: Osaka, JP
No. of applications: 28

Application No.	Application Title	Issue Date
20120043916	PORTABLE ELECTRONIC DEVICE A drop detection part that detects drop into the water, a light emission part, and a light-emission control circuit that makes the light emission part emit light when the drop detection part detects the drop into the water. Also, the light emission part may be disposed ...	02/23/2012
20120001686	HIGH FREQUENCY CIRCUIT A high frequency circuit includes an amplifier part that includes a plurality of amplifier circuits amplifying a high frequency signal and connected in parallel, that synthesizes outputs of the amplifier circuit and that supplies the outputs to an antenna; a controller ...	01/05/2012
20110306290	WIRELESS TERMINAL DEVICE, WIRELESS COMMUNICATION METHOD, AND WIRELESS COMMUNICATION SYSTEM AND PROGRAM A wireless terminal device (TA) receives a downlink signal that is repeatedly transmitted from a pre registered home repeater when requesting communication, specifies an idle channel based on idle channel information that is included in the downlink signal, and using th...	12/15/2011
20110204921	LEVEL CONVERSION CIRCUIT Circuit blocks and respectively convert high-voltage logic signals in which two logical values are expressed by a first signal potential and a second signal potential into low-voltage logic signals in which the two logical values are expressed by a third signal potentia...	08/25/2011
20110199960	WIRELESS COMMUNICATION SYSTEM, RELAY SYSTEM, REPEATER DEVICES AND SYNCHRONIZATION METHOD A wireless communication system comprises a relay system including a plurality of relay devices and a plurality of wireless terminal devices. Each relay device transmits control information to the wireless terminal device which is registered in the own relay device, and...	08/18/2011
20110199959	WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD THEREOF, REPEATER DEVICES AND WIRELESS TERMINAL DEVICES Plural repeaters (111₁to 111_n) are connected one another via a system bus (115), and each of which detects the state of another repeater by checking a signal transmitted over the system bus (115). When stopping the oper...	08/18/2011
20110199958	RELAY SYSTEM, RELAY DEVICE AND SYNCHRONIZATION METHOD When no synchronization signal is transmitted over a system bus (115), a master repeater is arbitrarily selected from a plurality of repeaters (111₂to 111_n), starts transmitting a synchronization signal over the system bus (	08/18/2011
20110194486	RELAY DEVICE, WIRELESS COMMUNICATION METHOD, AND WIRELESS COMMUNICATION SYSTEM A frequency band of 12.5 kHz that two repeaters (2A), (2B) are allowed to utilize is divided into two frequency bands, divisional frequency bands of 6.25 kHz are allocated to respective repeaters (2A), (2B), the repeater (2A) which is ...	08/11/2011
20110189946	WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, WIRELESS COMMUNICATION TERMINAL DEVICE, RELAY DEVICE, AND RELAY SYSTEM Wireless terminal devices (TA) to (TH) each detects whether channel information received from each of repeaters (111₁) to (111_n) indicates an occupied state or an idle state, and when detecting a channel in an idle state, writes ident...	08/04/2011
20110189945	WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, RELAY DEVICE, AND WIRELESS TERMINAL DEVICE There is provided a wireless communication system which causes a wireless terminal to select a relay device among plural relay devices connected together via a communication line when the wireless terminal attempts to communicate with another wireless terminal. The rela...	08/04/2011
20110050302	CHARGE PUMP CIRCUIT AND PLL CIRCUIT USING THE SAME A charge pump circuit (31), and a PLL circuit using the charge pump circuit, has a glitch compensation circuit (36) to compensate for a slow glitch which occurs along charging/discharging of electric charges in a parasitic capacitance. The glitch compensat...	03/03/2011
20100253438	Phase Locked Loop Circuit A PLL circuit comprises a phase detector, a charge pump, a loop filter, a voltage-controlled oscillator (VCO), and two variable voltage sources. The phase detector and the charge pump each comprises low-voltage transistors, and operates with a fixed supply voltage VCC1 ...	10/07/2010
20100208647	COMMUNICATION APPARATUS AND COMMUNICATION CONTROL PROGRAM A communication apparatus includes an input unit that inputs names of repeater stations to which the local communication apparatus and a communication counterpart belong respectively, a memory storing identification information of each repeater station, and information ...	08/19/2010
20100124168	REPEATER MONITOR SYSTEM AND REPEATER MONITOR METHOD A monitor terminal transmits a monitor request command to monitor a repeater station designated by an operator to a monitor server via the Internet. The monitor server detects a monitor station located in the communication range of the designated repeater station from t...	05/20/2010
20100098283	MICROPHONE A microphone which does not need a hanger plate structure is provided. A conductive hanger knob is provided at the back of the rear case of a microphone case. The hanger knob has three layers of a conductive shaft part, an insulator part and a conductive bolt part in th...	04/22/2010
20100054174	DATA COMMUNICATION CONTROL APPARATUS, DATA COMMUNICATION SYSTEM, DATA COMMUNICATION METHOD, AND COMPUTER-READABLE STORAGE MEDIUM RECORDING DATA COMMUNICATION PROGRAM A user location monitoring unit of a data communication control apparatus monitors a message sent from a wireless device via a repeater. Upon detection of a change in the location of the wireless device, the user location monitoring unit updates the location information...	03/04/2010
20100052784	LOW NOISE AMPLIFIER A low noise amplifier having a wide operating frequency band and a high dynamic range is provided. A transformer having a secondary winding connected between an input terminal to which an input signal is applied and a positive differential output terminal, and a primary...	03/04/2010
20090298452	METHOD FOR SCANNING FREQUENCY, RECEIVER, AND COMPUTER-READABLE RECORDING MEDIUM A receiver according to the present invention has a reception unit which receives reception signals; a storage unit which stores a band table, in which a plurality of frequency bands serving as scanning targets are registered so that the frequency bands correspond to ba...	12/03/2009
20090268659	REPEATER, WIRELESS COMMUNICATION SYSTEM, CONTROL METHOD AND RECORDING MEDIUM The present invention provides a repeater that can transmit the same signal received by plural repeaters to the recipient wireless communication device without redundancy of the signal, a wireless communication system, a control method, and a recording medium.	10/29/2009
20090262924	TONE SIGNAL DETECTOR, TONE SIGNAL DETECTION METHOD, AND COMPUTER READABLE RECORDING MEDIUM Upon selection of the frequency of a tone signal, a local oscillator generates a frequency signal having a shift frequency corresponding to the frequency of this tone signal. A frequency shifter generates a frequency-converted signal by shifting a frequency of the tone ...	10/22/2009
20090220117	MICROPHONE AND MICROPHONE HANGER-HOOK A conductive hanger plate having a flat external face and a conductive hanger knob are so provided as to be electrically isolated with each other at the same side of the external face of a non-conductive rear casing of a microphone casing. A conductive hanger hook hangi...	09/03/2009
20090195312	DIFFERENTIAL AMPLIFIER A differential amplifier comprises a left amplifier having transistors, a right amplifier having transistors, a negative feedback network having a resistor, and a negative feedback network having a transformer with a center tap. Phase compensation networks comprising a ...	08/06/2009
20090111396	AM TRANSMITTER AND MODULATION METHOD USING SAME An AM (Amplitude-Modulated) transmitter capable of improving modulation distortion is provided. An adder adds a modulation signal to a pre-set power reference signal. An APC (Automatic Power Control) amplifier compares a level of a detecting signal outputted by the LPF ...	04/30/2009
20090108937	LOW NOISE AMPLIFIER AND DIFFERENTIAL AMPLIFIER In a double-loop negative feedback low noise amplifier having double negative feedback paths by a feedback transformer and a feedback resistor added to a cascode amplifier comprising transistors and a resistor, a phase compensation circuit comprising a capacitor and a r...	04/30/2009
20080172841	Portable-device holding clip Elastic force originating from an elastic body is applied to gripping portions, so that a lower member and an upper member functions as a clip. An elastic member is formed in such a manner as to be cut out from an attachment surface of the lower member along the contour...	07/24/2008
20070279131	Variable gain amplifier and differential amplifier A variable gain amplifier includes signal amplifying transistor and first and second gain control transistors at output and non-output sides, whose emitters are connected to collector of signal amplifying transistor. The amplifier includes ...	12/06/2007
20070120585	Clock signal reproduction device and clock signal reproduction method A phase comparator detects time lag or time lead of the phase of a data signal with respect to a reproduced clock signal from a first digital VCO. A random walk filter measures a difference between number of lags and number of leads, controls the first digital VCO to sh...	05/31/2007
20050272396	Angle demodulation apparatus, local oscillation apparatus, angle demodulation method, local oscillation signal generating method, recording medium and computer data signal An FM modulation signal is mixed with a pair of first local oscillation signals to be converted to a pair of base band signals. The base band signals are respectively mixed a pair of second local oscillation signals. The resultant signals are added together, thereby yie...	12/08/2005

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Assignee: Icom Incorporated