The present invention discloses an input device for providing data input comprising a moveable element, the moveable element is capable of rotating about an axis of rotation and displacement orthogonal to the direction of rotational movement, means for detecting said rotation and means for detecting said orthogonal displacement and means for translating said rotation and said orthogonal displacement into signals indicative of respective data inputs.

An input device for a visual display comprising a light source and a scanner for angularly scanning a light beam from the light source across a plane. A photodetector detects interruption of the beam by an article positioned in the plane. The scanner comprises a shutter having a linear array of addressable, electrically actuable shutter elements. Each element is operable to transmit or block light from the light source under the control of a corresponding electrical signal. Because the light bea...

According to the present invention, an input circuit is provided comprising: an input terminal; a first power source terminal; a second power source terminal; a first bipolar transistor; a second bipolar transistor; a first electric current cut off member; a second electric current cut off member; a voltage clamping member; and a buffer. As a result, even when an electric potential greater than that of the power source voltage is applied to the input terminal, regardless of the supply or interru...

An input buffer is provided which can function as either a voltage referenced input buffer or a non-voltage referenced input buffer. The input buffer includes a circuit which is selectively configurable in one of the two different modes of operation in response to a mode signal, wherein in a first mode of operation a reference signal is operative to constrain a trip point of the input buffer. A single circuit with a capability of fulfilling both roles allows the decision as to which mode of inpu...

An input circuit is provided with a gate with an input end thereof connected to an input terminal to which an external signal is input, the gate allows or prohibits the output of the external signal in accordance with a control signal. The input circuit also includes a latch circuit that holds the output from the gate and outputs the signal thus held to an internal input terminal. This structure prevents any inflow of a through current, and prevents erroneous operation of an internal circuit res...

According to the present invention there is provided an input device not requiring a flat operating surface, easy to operate, and capable of being used with a feeling more accurately matching the human sense. The input device indicated at 1 comprises a case having a bottom a bottom surface having the shape of a cubic curve, two angular velocity sensors housed within the case, a signal processing section for converting sensor output into control signals, and selecting switches. The first angular ...

An input buffer is provided that converts a TTL logic signal to a CMOS logic signal and controls an CMOS output level while eliminating static current consumption even when an external bias voltage is changed. The input buffer improves a low-to-high input signal switching speed. Further, the input buffer can be used for low current and high-speed operation. The input buffer includes an inverter unit having pull-up and pull-down transistors with commonly coupled drains coupled between a power sup...

An input device for inputting at least two control commands into an electronic system, having a housing (10) accommodating a combined switching and encoding circuit device (13) with a switching control means (15) and an encoding control means (16); and first and second manually accessible operating elements (19, 20) for operating the switching control means (15) and the encoding control means (16), respectively. To provide another input device that allows eyes-free operation of multiple function...

An input buffer comprises: a pull-up transistor connected between a power supply voltage and an input pad and having a gate to which a control voltage is applied, and a substrate to which a floating well voltage is applied; a transmission transistor having a gate to which the power supply voltage is applied and a substrate connected to a ground voltage, and transmitting a signal applied to the input pad; a buffer generating an input signal by buffering the signal applied to the transmission tran...

An input circuit comprises an input terminal for receiving an input signal, an output terminal for outputting an output signal, a node connected to the input terminal, a terminating resistor connected between the node and a ground, a potential shift element connected between the node and the output terminal, a potential source for supplying a predetermined potential, and a current source connected between the potential source and the output terminal.