Abstract: A vehicle display control device is configured to perform operations including: performing processing for hindering visual recognition of an occupant of a vehicle on a captured image captured by an image-capturing device; generating a display image; acquiring information indicating a state of the vehicle and information regarding a surrounding environment of the vehicle; and determining whether the vehicle is in a first condition. In a case where it is determined that the vehicle is in the first condition, a display image obtained by prohibiting application of the processing to the captured image or by reducing an application degree of the processing is generated, and is displayed by the display device.

Abstract: A vehicle display control device is configured to perform operations including: performing processing for hindering visual recognition of an occupant of a vehicle on a captured image captured by an image-capturing device; generating a display image; acquiring information indicating a state of the vehicle and information regarding a surrounding environment of the vehicle; and determining whether the vehicle is in a first condition. In a case where it is determined that the vehicle is in the first condition, a display image obtained by prohibiting application of the processing to the captured image or by reducing an application degree of the processing is generated, and is displayed by the display device.

Abstract: An image capturing device captures an image of the periphery of a vehicle and outputs the captured image to a display control device. The display control device generates a display image in which a predetermined guide line overlaps the image captured by the image capturing device. A display device displays the display image generated by the display control device. The display control device generates a display image in which a plurality of points having a color different from that of the guide line are arranged at intervals along the guide line.

Abstract: A modulation device, which reduces out-of-band leakage of a modulated signal while avoiding reduction in resistance to multipath interference, includes: a modulator configured to generate a modulated signal having a predetermined frequency band in a symbol-by-symbol manner according to an input signal; a signal processor configured to remove components in the predetermined frequency band from a portion of the modulated signal including a symbol period boundary, to generate a desired-component removed modulated signal; and a subtracter configured to subtract the desired-component removed modulated signal from the modulated signal generated by the modulator and output the result.

Abstract: The present invention provides a communication apparatus canceling a leakage component of the transmission frequency modulated signal superimposed on the input of the receiving circuit. The communication apparatus of the invention includes a transmitting circuit modulating a first baseband signal into a modulated signal by a first scheme, a receiving circuit demodulating a received input signal into a second baseband signal, an antenna duplexer guiding the modulated signal to an antenna and guiding a received signal received by the antenna to the receiving circuit, wherein the received input signal includes the received signal and a leak component of the modulated signal pass through the antenna duplexer, a cancel signal generating circuit generating a canceling signal which cancels the leak component, and a coupler combining the received input signal and the canceling signal, wherein an output signal of the coupler is demodulated at the receiving circuit.

Abstract: A digital quadrature modulation circuit includes a quadrature modulator, a D/A converter, and a frequency converter. The quadrature modulator orthogonally modulates local oscillation signals +cos ?0t and +sin ?0t according to inputted in-phase component data I0 and orthogonal component data Q0, adds up two digital signals I0 cos ?0t and Q0 sin ?0t after the quadrature modulation, and outputs a digital signal (I0 cos ?0t+Q0 sin ?0t) after the addition. The D/A converter converts the digital signal (I0 cos ?0t+Q0 sin ?0t) outputted from the quadrature modulator into an analog signal, and outputs the analog signal. The frequency converter converts a frequency of the analog signal from the D/A converter by mixing the analog signal with carrier signals +cos ?1t and +sin ?1t, respectively.

Abstract: When a detection signal which indicates that a computer 103 is driven by external power supply 107 is not sent from a power supply detector 222 to power supply controller 203 through a detection signal transmission interface 212, by switching control of the power controller 203, a wireless communication apparatus 101 will be driven by a built-in battery in the wireless communication apparatus.

Abstract: Input port 101 is connected to output port 102 via open-circuited stub 107, first transmission line 105 and open-circuited stub 108. Coupling port 103 is connected to isolation port 104 via second transmission line 106 in electromagnetic coupling with first transmission line 105. Open-circuited stubs 107 and 108 have a stub length corresponding to ¼ wavelength in desired stop frequency. It is thereby possible to provide a directional coupler and directional coupling method enabling the miniaturization and harmonic spurious suppression effect with a low loss and with excellence even in microwave/millimeter wave band.

Abstract: In a state that a whip antenna is contained in a housing of a cellular phone, a minute space is formed between a feeding spring and an attaching member conductive to a helical antenna base portion, so as to generate electrostatic capacitance, which is equivalent to the impedance characteristic of a mono-pole antenna. Then, electrostatic capacitance and a coil portion of a helical antenna constitute an LC series resonance circuit so as to improve the wide band of the helical antenna.

Abstract: A high frequency semiconductor device includes: a substrate having a substantially flat principal surface, with a predetermined circuit pattern including at least an input line, an output line, and a ground electrode provided on the principal surface; and a transistor which has a drain electrode, a source electrode, and a gate electrode and is mounted on the substrate by a flip chip mounting. The source electrode and the ground electrode are connected to each other by a first bump in the flip chip mounting.

Abstract: The present invention provides an antenna system, which is used for a mobile wireless device and can be accommodated in or withdrawn from a telephone set main unit, whereby element length is shortened and strength is increased while avoiding deterioration of characteristics when the antenna is accommodated in the telephone set main unit. The antenna (40) comprises a helical antenna (41) having a feeding unit (42) and a whip antenna (43) having a feeding unit (44). The whip antenna (43) passes through the helical antenna (41), and the helical antenna (41) and the whip antenna (43) are electrically insulated from each other. Because the whip antenna (43) is designed to pass through the helical antenna (41), an antenna system for mobile wireless communication can be provided, in which element length is shortened and strength is increased.

Abstract: In an antenna apparatus, a monopole antenna element connected to an antenna matching circuit via a first contact 105 when a whip antenna is extended; a helical antenna element connected to the antenna matching circuit via a second contact when the whip antenna is accommodated; and a parasitic helical element disposed in close proximity to the helical antenna element at a spacing which is sufficiently small with respect to the wavelength of a first frequency band of a radio circuit.