Abstract:
PROBLEM TO BE SOLVED: To provide a data transfer system capable of comfortably performing remote control, a remote controller, an electronic apparatus, and a data transfer method. SOLUTION: The remote controller 10 is provided with a remote control signal transmission module 11 for transmitting a remote control signal and a data transmission module 12 for transmitting data in a memory card together with an address in which the data are stored after transmission of the remote control signal or during the transmission of the remote control signal. The electronic apparatus 20 stores data of the memory card which are received by a data receiving module 22 in a storage medium 24 correspondingly to the address. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an IC package where the heat sink of an IC package can be soldered on a mounting substrate with high reliability. SOLUTION: Grooves 44 are formed at the back of the heat sink 42 of the IC package 40 on the center line in a vertical direction and that on a lateral direction, namely, in the shape of a cross. When solder is applied to a prescribed position on the metallic pattern of the mounting substrate and the heat sink 42 and a metallic pattern are soldered, excess solder is stored in the grooves 44 in the shape of the cross. Thus, the projection of solder from the periphery of the heat radiation plate can be prevented. A solder junction face is controlled and formed and heat is uniformly radiated from the respective IC packages. Thus, the temperatures of the respective IC packages become uniform and the output power and the gains of the respective IC packages become uniform. Thus, the IC package where the heat sink can be soldered on the mounting substrate with high reliability can be realized.
Abstract:
PURPOSE:To reduce an antenna output by combining the characteristic impedance line of 1/4 wavelength of a signal and a semiconductor switch. CONSTITUTION:A transistor(TR) 71 and a diode Di 41 are turned on when a switching pulse Ps is logic 1 for a transmission period and the end of the Di 41 of a coaxial line 32 is grounded in terms of high frequencies. Since a TR 72 is turned off and a Di 42 is turned off, the end of the Di 42 of a coaxial line 34 is opened. Thus, the output terminal of a transmission circuit 1 is connected to an antenna 4, the input terminal of the reception circuit 2 is grounded and the signal is sent. The TR 71 is turned off, the Di 41 is also turned off and the TR 72 and the Di 42 are turned on when the signal Ps is logic 0 for the reception period. Thus, the output terminal of the circuit 1 is grounded and the antenna 4 is connected to the circuit 2. The circuits 1, 2 are connected selectively to the antenna 4, the switch function is imparted to coaxial lines 31-34 to select the transmission and reception, thereby preventing the deterioration in the Q. Thus, the deterioration in the antenna output is prevented.
Abstract:
PURPOSE:To eliminate the wastiful power consumption in a control circuit when no transmission signal is supplied to a transmission amplifier, by detecting the power supply current supplied to the transmission amplifier from a power supply circuit when the amplifier is set in an active state and turning on a switch means set between the power supply circuit and the control circuit. CONSTITUTION:When no transmission signal is supplied to an input terminal 11, a transistor TR13 is kept under an OFF state and no power supply current flows to a resistor 26. Thus, no voltage drop is produced at both ends of the resistor 26 with a TR27 kept under an OFF state. Thus, no active voltage is supplied to a control circuit 24 and therefore the circuit 24 is never actuated. When a transmission signal is supplied to the terminal 11, the TR13 is turned on in the negative half cycle of said transmission signal. Then the TR13 performs an amplifying action. When the TR13 is turned on, the power supply current flows to the resistor 26 and a choke coil 15 and the voltage drops are produced at both ends of the resistor 26. Thus, the TR27 is turned on and the active voltage is supplied to the circuit 24 from a regulator 17 and the circuit 24 is actuated.
Abstract:
PROBLEM TO BE SOLVED: To provide a radio transmission system of bulk data, a remote control apparatus, and an electronic device. SOLUTION: The remote control apparatus 10 is equipped with a remote control signal transmitting module 11; and a reflecting signal transmitting module 12 receiving a non-modulating carrier signal in a millimeter wave band or a microwave band after transmitting a remote control signal or during the transmission of the remote control signal, and modulating the non-modulating carrier signal to transmit it as a reflecting signal when the remote control signal is transmitted in a high-speed transferring mode. Further, the electronic devices 20 has a remote control signal receiving module 21 receiving the remote control signal; a reflecting signal receiving module 22 transmitting the non-modulating carrier signal in the millimeter wave band or the microwave band, and receiving the reflecting signal with the non-modulating carrier signal modulated thereafter; and a controlling module 23 controlling the transmission of the non-modulating carrier signal according to the receiving state of the remote control signal. The reflecting signal transmitting module 12 and the reflecting signal receiving module 22 are turned off after the lapse of a transmitting time on the basis of a data capacity. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To reduce the cost of a time division multiple receiver by decreasing the number of filters. SOLUTION: A duplexer 12 divides a signal received by an antenna 11 and a 1st stage reception mixer 15 converts the signal into an intermediate frequency signal. An orthogonal demodulator 21 demodulates the intermediate frequency signal and converts the signal into I and Q components. Sigma modulators 61a, 61b modulate the signals and digital filters 62a, 62b receive the modulated signals, extract only a prescribed frequency component and a base band processing section 2 receives the prescribed frequency component.
Abstract:
PURPOSE:To realize the measurement of an accurate reception signal intensity through the device with simple configuration. CONSTITUTION:This device is provided with a switch 13 selecting a reception antenna 11 or a reference level generating source 12. With the switch 13 selected to the position of the reference level generating source 12, a gain of variable gain amplifiers 19, 23, 24 is changed stepwise to obtain a true gain of the variable gain amplifiers 19, 23, 24 is obtained from a detection output of a power detector 32 in each gain control state and the gains are stored by a calibration means 33. Moreover, with the switch 13 selected to the position of the reception antenna 11, when the gain is controlled for the variable gain amplifiers 19, 23, 24, a detected power of the power detector 32, a gain control signal and a recorded true gain are referenced to obtain a reception signal intensity by a controller 33.
Abstract:
PURPOSE:To easily adjust impedance over a wide range by providing a series circuit comprising a bent conductive layer and a lumped constant capacitive element connected to a transmission line and a line length changing means changing the line length of the bent conductive layer. CONSTITUTION:An impedance adjustment circuit 6 is provided on an output side matching circuit 4 to adjust the impedance. A series circuit comprising a bent conductive layer 7 and a chip capacitor 12 as a lumped constant capacitive element is connected between a transmission line 4a of the output side matching circuit 4 and a ground conductive layer, and island-shaped conductive layers 8-11 are arranged in the vicinity of the bent conductive layer 7 and U or L-shaped short-circuit lines a-g are used to short-circuit selectively parts of the bent conductive layer 7 or parts between the bent conductive layer 7 and the island-shaped conductive layers 8-11 to vary the line length of the bent conductive layer 7, thereby adjusting the impedance of the series circuit comprising the bent conductive layer 7 and the chip capacitor 12 over a wide range in a way of showing inductive component (L component) - series resonance - capacitive component, and thereby adjusting the impedance of the entire output side matching circuit 4 over a wide range.
Abstract:
PURPOSE:To receive correct information by a center station even when a mobile body is located at any place, by providing a means which sets the optimum number of times of transmission corresponding to a present position, and setting the number of times of transmission corresponding to the present position of the mobile body. CONSTITUTION:When only position measuring data is sent from the mobile body 1, the position measuring data is supplied from a position measuring equipment 11 to a data processing part 14. When the data of a required message, etc., is sent after being added on the position measuring data the position measuring data is supplied from the position measuring equipment 11 to the data processing part 14, and also, the data of a message, etc., is supplied from a data input part 12 to the data processing part 14. When such data is supplied to the data processing part 14, the optimum number of times of transmission corresponding to the present position obtained from the position measuring equipment 11 is read out from a memory 13. And only the data equivalent to the number of times of transmission is outputted from the data processing part 14. In such a way, it is possible to receive the correct information by the center station 3 with the same probability even when the mobile body is located at any place.
Abstract:
PROBLEM TO BE SOLVED: To provide a wireless transmission system, remote controlling apparatus and electronic device, and wireless transmission method which ensure to transmit large volume of data. SOLUTION: The remote controlling apparatus 10 has a remote controlling signal transmission module 11 for transmitting remote controlling signal, a reflected signal transmission module 12 for receiving unmodulated carrier signal for millimeter waveband or microwave band during or after the remote controlling signal transmission to modulate the unmodulated carrier signal and transmit it as a reflected signal. Also the electronic device 20 has a remote controlling signal receiving module 21 for receiving the remote controlling signal and a reflected signal receiving module 22 for transmitting the unmodulated carrier signal for millimeter waveband or microwave band to receive the reflected signal modulated from the unmodulated carrier signal, and a controlling module 23 for controlling transmission of the unmodulated carrier signal according to the receiving condition of the remote controlling signal. COPYRIGHT: (C)2008,JPO&INPIT