摘要:
It is an object of the invention to present an input and display apparatus for handwritten characters capable of freely editing input handwritten characters. A handwritten character entered on a touch panel by using a pen is registered as one stroke data. The registered one stroke data is divided in two stroke data by using the pen, or two stroke data are combined into one stroke data. By combination of stroke data division and combination, partial deletion in stroke data, blank insertion in stroke data, and insertion of other stroke data into stroke data are realized.
摘要:
An optical displacement measuring system using a triangulation comprises a light projecting unit for emitting to an object a light beam which is amplitude-modulated by a reference signal having a predetermined period, a light receiving unit for receiving light reflected back from the object and providing a pair of position signals, and a control signal generator for providing first and second control signals in synchronism with the reference signal. The position signals are processed by a switching unit in a time sharing manner according to the first control signal to obtain a first composite signal, in which the position signals occur alternately every integral number of the period of the reference signal. The first composite signal is amplified by a single amplifier at a desired amplification rate, and then sent to a distance determining unit, in which the polarity of the first composite signal is periodically reversed according to the second control signal to obtain a second composite signal, and a distance signal indicative of a distance between the light projecting unit and the object is determined from the second composite signal.
摘要:
An optical measurement system for determination of a profile or thickness of an object includes first and second optical heads directing first and second light beams, respectively on first and second points on the surface of the object. Photo-sensors are included respectively in the first and second optical heads for receiving reflected lights from said first and second points and providing first and second outputs which varies in proportion to perpendicular distances from a reference plane to said first and second points on the object's surface. The first and second outputs are transmitted selectively to a single processing circuit through a switch. The processing circuit operates to process the first and second outputs in sequence to measure by triangulation the perpendicular distance of the first and second points from the reference plane and to analyze a surface or thickness of the object based upon thus measured perpendicular distances. With the use of the single processing circuit, the first and second outputs can be processed in the identical conditions to enable reliable determination of the perpendicular distances of the first and second points from the reference plane and therefore accurate analysis of the surface profile or the thickness of the object.
摘要:
An optical displacement measuring system utilizing a triangulation is so arranged that light receiving means receives light reflected back from an object to be measured and generates a pair of output signals having mutually opposite values and responsive to a position of a light spot on the light receiving means. An operational means performs addition and subtraction over the pair of positional output signals and to obtain a ratio between the both added and subtracted output signals for generating a measured distance signal, and a linearity correcting means provides a mathematical correction number to one of the pair of positional output signals to correct any nonlinearity of the measured distance signal, for providing the linearity to the measured distance signal with a simple arrangement.
摘要:
This radar device can recognize the type of a specific target (in particular, a two-wheeled vehicle) with high precision, using only the radar device. The radar device comprises: a transmission unit that transmits a transmission wave, based on a transmission signal, toward the target; a receiving unit that receives a reflected wave generated by the transmission wave being reflected by the target, and thereby generates a reception signal; and a target detection unit that acquires information on the target on the basis of the transmission signal and the reception signal. The target detection unit calculates the relative speeds of a plurality of detection points within the same target, and determines the type of the target on the basis of the spread of the relative speeds.
摘要:
This radar module is provided with: a transmission antenna; a reception antenna; a signal source for generating a transmission signal; a transmission unit for transmitting a transmission signal towards a target object through the transmission antenna; a reception unit for receiving, through the reception antenna, a reflected signal produced by reflection of the transmission signal from the target object; a signal processing unit for performing signal processing on the basis of a reception signal outputted by the reception unit; and an external interface for outputting information obtained by the signal processing unit. The signal processing unit calculates an average value and a variance value of the received power of the reception signal, and uses the calculated average value and variance value to identify the target object.
摘要:
A molding hook and loop fastener includes a plurality of surface fastener portions and a coupling member that is formed of a resilient body and connects the surface fastener portions. The coupling member includes a pair of vertical wall coupling portions which is continuously disposed along a longitudinal direction on both sides in between an engaging element area and which connects the surface fastener portions. With this configuration, when the molding hook and loop fastener is integrally molded to a cushion body, it is possible to prevent a resin material from penetrating into the engaging element area of the surface fastener portion and to stably secure a desired fastening strength at the engaging element area.
摘要:
A photodetector capable of improving dynamic range for input signals is provided. This photodetector includes a photoelectric converting portion, a charge separating portion, a charge accumulating portion, a barrier electrode formed the charge separating portion and the charge accumulating portion, and a barrier-height adjusting portion electrically connected to the barrier electrode. Undesired electric charges such as generated when environment light is incident on the photoelectric converting portion are removed by the charge separating portion. A potential barrier with an appropriate height is formed under the barrier electrode by applying a voltage to the barrier electrode according to an electric charge amount supplied from the charge separating portion to the barrier-height adjusting portion. Electric charges flowing from the charge separating portion into the charge accumulating portion over the potential barrier are provided as an output of the photodetector.
摘要:
A wireless sensor device including a sensor configured to sense a target object and provide a sensor signal of varying levels indicative of condition of the target object, a signal processing circuit configured to amplify the sensor signal and provide an amplified electric analog signal, and a detection circuit configured to receive the amplified analog signal and provide a detection output when the electric analog signal goes beyond a predetermined detection threshold. A radio transmitter transmits a radio detection signal in response to the detection output. A power supply is configured to provide an electric power to the signal processing circuit and the radio transmitter and includes a power generating element which converts an external energy into the electric power to be accumulated in the power supply. A controller activates the radio transmitter only in response to the detection output, permitting the radio transmitter to generate the radio detection signal.
摘要:
A spatial information detection device is provided, which is capable of, even under the condition that an environmental light having intensity fluctuations exists in a target space, projecting a light intensity-modulated with a predetermined modulation signal from a light emitting source into the target space, receiving light from the target space with a photodetector, and detecting spatial information of the target space from a change between the light projected from the light emitting source and the light received by the photodetector. This device has a smoothing unit configured to integrate, over a predetermined integration period, a fluctuation component in a prescribed phase zone of the modulation signal with respect to an electric charge amount generated by receiving the environmental light in the electric charge amount generated at the photodetector by receiving the light from the target space, thereby smoothing the fluctuation component.