Abstract: A coordinate detecting device includes a plurality of first and second electrodes, a detecting unit for scanning the first and second electrodes to detect sensor output values of the first and second electrodes, and an arithmetic processing unit for performing an arithmetic process on the basis of the detected sensor output values. When there are a plurality of peak regions in which the sensor output values of both the first and second electrodes are equal to or greater than a first threshold value, the detecting unit detects the sensor output values at intersection points between the first and second electrodes in the peak regions. The arithmetic processing unit calculates the coordinates of a detection target on the basis of the sensor output values at the intersection points between the first and second electrodes in the peak regions and the coordinates of the first and second electrodes in the peak regions.

Abstract: A coordinate detecting device includes a detecting unit configured to detect the capacitance of each of a plurality of electrodes which are arranged in a predetermined direction, a storage unit configured to store the detected capacitance of each electrode, and an arithmetic processing unit configured to perform an arithmetic process on the basis of the capacitance of each electrode stored in the storage unit. The detecting unit sequentially detects the capacitance of the plurality of electrodes from one end to the other end of the predetermined direction. The arithmetic processing unit determines a coordinate region of a detection target in the predetermined direction on the basis of a comparison value between capacitance variations of adjacent electrodes and the magnitude of the detected capacitance variation of each electrode.

Abstract: A coordinate detecting device includes a detecting unit configured to detect the capacitance of each of a plurality of electrodes arranged in a predetermined direction and an arithmetic processing unit configured to calculate the coordinates of a detection target using different calculation methods according to the state of a variation in the capacitance of the plurality of electrodes. The arithmetic processing unit calculates the coordinates of the detection target, using one of a centroid calculation method of calculating the coordinates of the centroid and a curve approximation method of calculating a peak of a curve according to a comparison value between a capacitance variation of a peak electrode and a capacitance variation of an electrode which is not adjacent to the peak electrode.

Abstract: A coordinate detecting device includes a plurality of first electrodes, a plurality of second electrodes, a capacitance detecting circuit, a first electrode switch, and a second electrode switch. All of the second electrodes are connected to a power supply by the second electrode switch and the first electrodes are selectively connected to the capacitance detecting circuit by the first electrode switch, thereby detecting a first coordinate. All of the first electrodes are connected to the power supply by the first electrode switch and the second electrodes are selectively connected to the capacitance detecting circuit by the second electrode switch, thereby detecting a second coordinate. When a plurality of first coordinates or a plurality of second coordinates are detected, capacitances between the first and second electrodes corresponding to combinations of the detected first and second coordinates are measured, thereby specifying the position of the detection target.

Abstract: A thin input device can be made small and thin, and prevent an excessive force from acting on a connecting part with a substrate when an operating part is operated to detect deformation of an actuating member. An actuating member is received in a recess of a lower case, and a lid is fixed. The actuating member includes fixed parts provided at four corners and deformable parts thinner than the fixed parts. The fixed parts are fixedly sandwiched between a bottom surface of the recess of the lower case and the lid. The deformable parts, to which strain detecting elements are attached, are provided in four directions around the operating part. When the operating knob is operated to deform a deformable part, the force acts only on the case, and an excessive force does not act on connecting parts between the connecting terminals, and a substrate.

Abstract: A coordinate input device includes an operation unit that is provided so as to be operated, strain sensors that output data corresponding to an operation amount of the operation unit, and a control unit. The control unit performs the count corresponding to the increase or decrease of speed data that is obtained by converting data sequentially output from the strain sensors, and generates counted count values or coordinate data calculated from the count values. The control unit calculates a moving average value from the count values that are sequentially output every predetermined time. When the moving average value satisfies predetermined conditions, the control unit regards that the operation of the operation unit is cancelled, and stops the output of the coordinate data or outputs 0 as the count value.

Abstract: A coordinate input device includes an operation unit that is provided so as to be operated, strain sensors that output data corresponding to an operation amount of the operation unit, and a control unit. The control unit performs the count corresponding to the increase or decrease of speed data that is obtained by converting data sequentially output from the strain sensors, and generates counted count values or coordinate data calculated from the count values. The control unit calculates a moving average value from the count values that are sequentially output every predetermined time. When the moving average value satisfies predetermined conditions, the control unit regards that the operation of the operation unit is cancelled, and stops the output of the coordinate data or outputs 0 as the count value.

Abstract: A personal computer in which a returning from a power saving mode for further suppressing power consumption to a normal operating mode is possible by detecting an operation of stick-type coordinate input device is provided. Since a pressure sensor which is an input device connected to a I/O is comprised in a pointer, it is possible to output an operation signal from the pressure sensor to a CPU by pressing an operation grip, instead of distortion sensors which can not output the operation signal from a detecting circuit to the CPU due to the stop of a clock oscillator in the idle mode. Thereby, even in the idle mode in which the clock oscillator is stopped, the computer can return to the normal operating mode by the operation of the pointer which is not feasible in the prior art.

Abstract: Loss of data to be transmitted from a peripheral device to a host before a software hierarchy of the host side completely starts is prevented. In a time period before a host completely reached a normal operation mode from a sleep mode, data outputted from a receiver is stored in second buffer memory of a communication control device. When the host reaches the normal operation mode, an application hierarchy in the host transmits a transmission approval command to a control unit, and then the data is transferred from the second buffer memory to first buffer memory. Since communication between the host and the communication control device of the receiver is resumed and then the data stored in the first buffer memory is sent to the host through a USB line, loss of the data can be prevented.

Abstract: There is disclosed a thin input device capable of being made small and thin, and capable of preventing an excessive force from acting on a connecting part with a substrate, etc. due to an operating force when an operating part is operated to detect deformation of an actuating member. An actuating member is received in a recess of a lower case, and a lid is fixed. Fixed parts are provided at four corners of the actuating member, and the fixed parts are fixedly sandwiched between a bottom surface of the recess of the lower case, and the lid. In the actuating member, deformable parts that are thinner than the fixed parts are provided in four directions around an operating part, and strain detecting elements are attached to the deformable parts, respectively. When the operating knob is operated to deform a deformable part, the force acts only on the case, and an excessive force does not act on connecting parts between the connecting terminals, and a substrate, etc.

Abstract: A coordinate input apparatus is provided that consumes little power and is capable of properly inputting coordinates without being influenced by a surrounding environment change. The coordinate input apparatus 21 has pressure sensors 3a, 3b, 3c, 3d, and 3e that are composed of registers and detect the pressure applied at the time of operation as voltage changes. A switching element 23, 31 that on/off controls a voltage to be applied to the pressure sensors 3a, 3b, 3c, 3d, and 3e is provided on the power source side of the pressure sensors 3a, 3b, 3c, 3d, and 3e.

Abstract: A personal computer in which a returning from a power saving mode for further suppressing power consumption to a normal operating mode is possible by detecting an operation of stick-type coordinate input device is provided. Since a pressure sensor which is an input device connected to a I/O is comprised in a pointer, it is possible to output an operation signal from the pressure sensor to a CPU by pressing an operation grip, instead of distortion sensors which can not output the operation signal from a detecting circuit to the CPU due to the stop of a clock oscillator in the idle mode. Thereby, even in the idle mode in which the clock oscillator is stopped, the computer can return to the normal operating mode by the operation of the pointer which is not feasible in the prior art.

Abstract: It is an object of the present invention to prevent loss of data to be transmitted from a peripheral device to a host before a software hierarchy of the host side completely starts. In a time period before a host 11 completely reached a normal operation mode from a sleep mode, data outputted from a receiver 12 is stored in second storage means 12b of a communication control device 12A. When the host 11 reaches the normal operation mode, an application hierarchy in the host 11 transmits a transmission approval command to a control unit 12c, and then the data is transferred from the second storage means 12b to first storage means 12a. Since communication between the host 11 and the communication control device 12A of the receiver 12 is resumed and then the data stored in the first storage means 12a is sent to the host 11 through a USB line 14, loss of the data can be prevented.

Abstract: A USB-compliant keyboard device is provided that is capable of preventing malfunctions, operation failure and the like due to static noise by a simple method. The keyboard device has a keyboard main body with a large number of key tops on its upper surface, an upper case and a lower case accommodating the keyboard main body, a control circuit board on which a control circuit to control the keyboard main body is mounted, and USB connectors connected to the control circuit board. Further, a shield plate covering the control circuit board from a lower position is provided. The shield plate is electrically connected to frame ground members of the USB connectors and a shield line of a cable connected to a personal computer main body.

Abstract: A circuit board comprises: a plurality of solder lands, a wiring pattern having a plurality of wiring lines connected to the solder lands, respectively, an output terminal formed at one end of each of the wiring lines of the wiring pattern, an integrated control circuit connected to the solder lands, and a grounding pattern to be held at a ground potential. The grounding pattern has grounding lines formed between the adjacent wiring lines of the wiring pattern, respectively, so as to be coupled to the wiring lines by capacitive coupling.