Abstract: A semiconductor apparatus includes an amplifying unit, a bias controlling unit, an AD converting unit and a controlling unit. The amplifying unit is configured to amplify an input signal to output an amplified signal. The bias controlling unit is configured to generate a bias voltage to be applied to the input signal. The AD converting unit is configured to AD-convert the amplified signal into an output signal. The controlling unit is configured to output a control signal to the bias controlling unit. The controlling unit outputs the control signal when an output value indicated by the output signal is equal to a predetermined value. The bias controlling unit changes the bias voltage in response to the control signal.

Abstract: A semiconductor integrated circuit has: a differential amplifier circuit including a first MOS transistor connected between a first node and a common node and a second MOS transistor connected between a second node and the common node; a first current supply circuit configured to supply current to the first node; and a second current supply circuit configured to supply current to the second node. A current supply ability of the first current supply circuit is variable.

Abstract: A balun in which the phase shift may be reduced significantly is disclosed. The balun has three lines, i.e. a first line b, a second line a and a third line c, arranged in parallel with the ground surface. The second line a and the third line c are arranged at the same height from the ground surface GC, the longitudinal length of each respective one of the first line b, second line a and third line c are specified to be equal to a quarter (¼) of the wavelength at the central frequency in the working band, and the capacitance Ca between the second line a and the ground surface GC is specified to be equal to the capacitance Cab between the second line a and the first line b.

Abstract: One of the objects of this invention is to realize an antenna having low reflection loss over an extremely wideband. The antenna of the present invention is provided with a dielectric substrate, a plurality of antenna conductors formed on one surface of the dielectric substrate that are pseudo self-complementary on the surface, and a plurality of feed conductors symmetrical with respect to symmetrical surfaces of the antenna conductors, wherein a gap for a wavelength of 1/10 or less that of the wavelength of a usage frequency in a vacuum is provided at a center of rotational symmetry between the plurality of antenna conductors.

Abstract: A semiconductor device includes a reference voltage generating section configured to generate a first reference voltage and a second reference voltage based on a voltage supplied from an external power supply, and an AD (analog/digital) conversion circuit operating based on the first reference voltage to generate an AD conversion signal corresponding to an output signal supplied from an external device. The second reference voltage is supplied to the external device, and a ratio of the first reference voltage and the second reference voltage is kept to a constant value regardless of a temperature of the semiconductor device.

Abstract: There is provided a bandpass filter for a differential signal applicable to a device having a wide passband, being a device for transmitting a signal using a differential signal. Respective lines 1 and 2 and lines 3 and 4 are provide on two surfaces P1 and P2 at an inner layer of a dielectric body 9. Each two lines are arranged symmetrically about the same plane of symmetry C, and the length of each line is a quarter wavelength at the center frequency of a used band. Reference numerals 5 and 6 are input/output ends of the lines 1 and 2, and 7 and 8 are input output ends of lines 3 and 4. Opposite ends to the input output ends are open. If a differential signal is input to terminals 5, 6, a differential output appears at the terminals 7, 8. This device works as a bandpass filter.

Abstract: There is provided a bandpass filter for a differential signal applicable to a device having a wide passband, being a device for transmitting a signal using a differential signal. Respective lines 1 and 2 and lines 3 and 4 are provide on two surfaces P1 and P2 at an inner layer of a dielectric body 9. Each two lines are arranged symmetrically about the same plane of symmetry C, and the length of each line is a quarter wavelength at the center frequency of a used band. Reference numerals 5 and 6 are input/output ends of the lines 1 and 2, and 7 and 8 are input output ends of lines 3 and 4. Opposite ends to the input output ends are open. If a differential signal is input to terminals 5, 6, a differential output appears at the terminals 7, 8. This device works as a bandpass filter.

Abstract: There is provided a bandpass filter for a differential signal applicable to a device having a wide passband, being a device for transmitting a signal using a differential signal. Respective lines 1 and 2 and lines 3 and 4 are provide on two surfaces P1 and P2 at an inner layer of a dielectric body 9. Each two lines are arranged symmetrically about the same plane of symmetry C, and the length of each line is a quarter wavelength at the center frequency of a used band. Reference numerals 5 and 6 are input/output ends of the lines 1 and 2, and 7 and 8 are input output ends of lines 3 and 4. Opposite ends to the input output ends are open. If a differential signal is input to terminals 5, 6, a differential output appears at the terminals 7, 8. This device works as a bandpass filter.

Abstract: A balun in which the phase shift may be reduced significantly is disclosed. The balun has three lines, i.e. a first line b, a second line a and a third line c, arranged in parallel with the ground surface. The second line a and the third line c are arranged at the same height from the ground surface GC, the longitudinal length of each respective one of the first line b, second line a and third line c are specified to be equal to a quarter (¼) of the wavelength at the central frequency in the working band, and the capacitance Ca between the second line a and the ground surface GC is specified to be equal to the capacitance Cab between the second line a and the first line b.

Abstract: A pathological diagnosis support device, a pathological diagnosis support program, a pathological diagnosis support method, and a pathological diagnosis support system extract a pathological tissue for diagnosis from a pathological image and diagnose the pathological tissue. A tissue collected in a pathological inspection is stained using, for example, hematoxylin and eosin. In consideration of the state of the tissue in which a cell nucleus and its peripheral constituent items are stained in respective colors unique thereto, subimages such as a cell nucleus, a pore, cytoplasm, interstitium are extracted from the pathological image, and color information of the cell nucleus is also extracted. The subimages and the color information are stored as feature candidates so that presence or absence of a tumor and benignity or malignity of the tumor are determined.

Abstract: A semiconductor device includes a reference voltage generating section configured to generate a first reference voltage and a second reference voltage based on a voltage supplied from an external power supply; and an AD (analog/digital) conversion circuit operating based on the first reference voltage to generate an AD conversion signal corresponding to an output signal supplied from an external device through AD conversion. The second reference voltage is supplied to the external device, and a ratio of the first reference voltage and the second reference voltage is kept to a constant value regardless of a temperature of the semiconductor device.

Abstract: A data communication system includes a plurality of sensor initiators, each of which has first and second antennas; a communication control module and a plurality of sensor communication modules. The communication control module is connected with the plurality of sensor initiators through a LAN and is configured to control the plurality of sensor initiators such that a first electromagnetic wave signal for a command data signal is transmitted through the first antennas. Each of the plurality of sensor communication modules includes at least a sensor and third and fourth antennas.

Abstract: A semiconductor apparatus includes an amplifying unit, a bias controlling unit, an AD converting unit and a controlling unit. The amplifying unit is configured to amplify an input signal to output an amplified signal. The bias controlling unit is configured to generate a bias voltage to be applied to the input signal. The AD converting unit is configured to AD-convert the amplified signal into an output signal. The controlling unit is configured to output a control signal to the bias controlling unit. The controlling unit outputs the control signal when an output value indicated by the output signal is equal to a predetermined value. The bias controlling unit changes the bias voltage in response to the control signal.

Abstract: A variation detection device has a processor, an AD converter converting a signal voltage output from a sensor to generate an AD converted value and outputting the AD converted value to the processor, a temperature sensor detecting a temperature of the sensor, and a memory storing a table which indicates a relationship between temperatures and initial values. When receiving the AD converted value, the processor identifies a temperature of the sensor based on an output of the temperature sensor, reads out an initial value corresponding to the identified temperature from the table, and calculates a variation between the initial value and the AD converted value.

Abstract: A data communication device includes a receiving circuit configured to receive a data signal in an active state. An intermittent activation control circuit activates the receiving circuit into the active state in a predetermined time interval. A control unit operates in response to the data signal received by the receiving circuit. Also, the control unit controls the time interval of the intermittent activation control circuit.

Abstract: A semiconductor integrated circuit has: a differential amplifier circuit including a first MOS transistor connected between a first node and a common node and a second MOS transistor connected between a second node and the common node; a first current supply circuit configured to supply current to the first node; and a second current supply circuit configured to supply current to the second node. A current supply ability of the first current supply circuit is variable.

Abstract: There is provided a bandpass filter for a differential signal applicable to a device having a wide passband, being a device for transmitting a signal using a differential signal. Respective lines 1 and 2 and lines 3 and 4 are provide on two surfaces P1 and P2 at an inner layer of a dielectric body 9. Each two lines are arranged symmetrically about the same plane of symmetry C, and the length of each line is a quarter wavelength at the center frequency of a used band. Reference numerals 5 and 6 are input/output ends of the lines 1 and 2, and 7 and 8 are input output ends of lines 3 and 4. Opposite ends to the input output ends are open. If a differential signal is input to terminals 5, 6, a differential output appears at the terminals 7, 8. This device works as a bandpass filter.

Abstract: One of the objects of this invention is to realize an antenna having low reflection loss over an extremely wideband. The antenna of the present invention is provided with a dielectric substrate, a plurality of antenna conductors formed on one surface of the dielectric substrate that are pseudo self-complementary on the surface, and a plurality of feed conductors symmetrical with respect to symmetrical surfaces of the antenna conductors, wherein a gap for a wavelength of {fraction (1/10)} or less that of the wavelength of a usage frequency in a vacuum is provided at a center of rotational symmetry between the plurality of antenna conductors.

Abstract: Users desiring to register as users access web server for personal computers using terminal device, and run a member registration process by registering a member ID and password. When a user that has registered as a member wants to use the membership system service-providing site with a mobile telephone, the user accesses web server for mobile telephones. When an already-registered member ID and password are inputted to web server for mobile telephones, web server for mobile telephones extracts identification information specific to the mobile telephone and records it linked to the already-registered member ID and password. This process enables member information to be centrally managed on a membership system service-providing site that can be accessed from a terminal device and a mobile-telephone.

Abstract: An image recording and reproducing apparatus can record and reproduce both of a digital signal and an analog signal. Operations of a broadcast receiving apparatus and a recording and reproducing apparatus are integrated and superimposition of information on an analog image is realized during recording and reproduction of a digital signal. The broadcast receiving apparatus and the recording and reproducing apparatus communicate with each other to be able to set and obtain states of the opposite apparatus, so that one of the apparatus notifies information of the other apparatus to a user and causes the user to set the information in a picture having the same form as a picture used to notify a state of one apparatus to the user and to cause the user to set the state.