Abstract: The present disclosure provides a multi-state one-time programmable (MSOTP) memory circuit including a memory cell and a programming voltage driving circuit. The memory cell includes a MOS storage transistor, a first MOS access transistor and a second MOS access transistor electrically connected to store two bits of data. When the memory cell is in a writing state, the programming voltage driving circuit outputs a writing control potential to the gate of the MOS storage transistor, and when the memory cell is in a reading state, the programming voltage driving circuit outputs a reading control potential to the gate of the MOS storage transistor.

Abstract: A multiple function optical image detecting structure includes a shell body, a tracing ball, an optical base, a circuit board, a light-emitting element, and an image sensor. The shell body receives the tracing ball. The optical base has a slanted spectroscope that faces part of the spherical surface of the tracing ball and a lens element located on one side of the spectroscope. The light-emitting element and the image sensor are electrically connected with the circuit board. The light-emitting element faces towards the spectroscope and the image sensor faces towards the lens element. The light axial of the projected light generated from the light-emitting element is reflected/transmitted to the surface of the tracing ball via the spectroscope. Thereby, the light is uniformly projected on the tracing ball and the image sensor obtains the image on the lens element to calculate a displacement.

Abstract: An optical mouse light emitter has a transparent body, a divergent light-emitting component and a disc reflective structure. The transparent body has a front end surface and a lateral circular surface. The light-emitting component is built in the transparent body. The disc reflective structure is built on the lateral circular surface. The disc reflective structure has an internal surface. The light emitted from the light-emitting component through the front end surface of the transparent body forms a light collection area. The light emitted from the light-emitting component to the internal surface of the disc reflective structure is reflected by the internal surface to form an axial parallel light and focused at the light collection area for reducing the light interference and enhancing the illumination so as to improve the light sensing effect of the optical mouse, lower its cost and reduce its electric power consumption.

Abstract: A multiple function optical image detecting structure includes a shell body, a tracing ball, an optical base, a circuit board, a light-emitting element, and an image sensor. The shell body receives the tracing ball. The optical base has a slanted spectroscope that faces part of the spherical surface of the tracing ball and a lens element located on one side of the spectroscope. The light-emitting element and the image sensor are electrically connected with the circuit board. The light-emitting element faces towards the spectroscope and the image sensor faces towards the lens element. The light axial of the projected light generated from the light-emitting element is reflected/transmitted to the surface of the tracing ball via the spectroscope. Thereby, the light is uniformly projected on the tracing ball and the image sensor obtains the image on the lens element to calculate a displacement.

Abstract: A dust-cleaning apparatus for a tracking ball includes a cover, a seat body, a tracking ball, and a dust-cleaning textile. The tracking ball rolls inside the seat body that is combined with the cover. Furthermore, a partially spherical surface of the tracking ball is exposed out of the seat body. The dust-cleaning textile is disposed between the seat body and the cover and has a hole for the tracking ball to pass through and compactly contact the dust-cleaning textile. Due to the compact contacting with the tracking ball, the dust-cleaning textile prevents foreign matter from attaching on to the spherical surface of tracking ball or from entering the seat body. Moreover, foreign matter is isolated outside the seat body so that the tracking ball can be used normally.

Abstract: A beam-directed structure of an input device comprises a light source, a first lens, and a vision-detecting element. The light source provides a projecting beam. The bottom of the first lens has an arch, which is on the path of the projecting beam. The arch adjusts the beam's slope, and the normal of the arch of the first lens is perpendicular to the surface of the object to let the beam focus on the bottom of the first lens and be projected to the surface of the object. The vision-capturing path passes the first lens exactly from the surface of the object and enters the upper part of the first lens. The vision-detecting element mounted on the upper part of the first lens is used to collect the vision from the surface of the object. By focusing on the surface of the object via the first lens, the vision-detecting element can clearly read the vision of the object.

Abstract: A third input device used in a mouse is constructed to have a wheel holder mounted on a bottom board inside the mouse, a roller, the roller having a closed outer side, an inner side, and a receiving open chamber in the inner side, an encoding wheel mounted inside the roller and pivoted with the roller to the wheel holder, the encoding wheel having a mechanical tooth form, and a locating plate coupled to the inner side of the roller for enabling the roller to be pivoted with the encoding wheel to the wheel holder, the locating plate holding a plurality of probes respectively disposed in contact with the tooth form of the encoding wheel and adapted to output a signal indicative of direction and amount of rotation of the encoding wheel and the roller.

Abstract: A light apparatus of an optical mouse with an aperture stop and the light projection method thereof are described. The light apparatus has at least one image-forming lens and an aperture stop. The image-forming lens defines an interior area and an external area. The aperture stop has a pupil. The aperture stop shelters the external area of the image-forming lens. The pupil of the aperture stop corresponds to the interior area. The present light apparatus will not produce a light halo on the image detection unit of the optical mouse when the light source of the optical mouse projects a light that passes through the image-forming lens of the light apparatus. Therefore, the image detection unit clearly detects the image of the image detection surface.

Abstract: A light apparatus of an optical mouse with an aperture stop and the light projection method thereof are described. The light apparatus has at least one image-forming lens and an aperture stop. The image-forming lens defines an interior area and an external area. The aperture stop has a pupil. The aperture stop shelters the external area of the image-forming lens. The pupil of the aperture stop corresponds to the interior area. The present light apparatus will not produce a light halo on the image detection unit of the optical mouse when the light source of the optical mouse projects a light that passes through the image-forming lens of the light apparatus. Therefore, the image detection unit clearly detects the image of the image detection surface.

Abstract: A light projection method and apparatus for an optical mouse is provided. The light projection method and apparatus for an optical mouse comprises: provides a light projection apparatus and projects a light into the light projection apparatus to form a first light beam and a second light beam. The first light beam is vertically projected to a detection area of an image detection surface and the second light beam is slantwise projected to the detection area of the image detection surface. The first light beam allows the image detection unit of the optical mouse to exactly detect the image on the detection area. The second light beam makes the contrast between the concave and the convex of the detection area become more obvious and the ability of the image detection unit of the optical mouse to detect and identify the on the detection surface is effectively enhanced.

Abstract: An optical mouse light emitter has a transparent body, a divergent light-emitting component and a disc reflective structure. The transparent body has a front end surface and a lateral circular surface. The light-emitting component is built in the transparent body. The disc reflective structure is built on the lateral circular surface. The disc reflective structure has an internal surface. The light emitted from the light-emitting component through the front end surface of the transparent body forms a light collection area. The light emitted from the light-emitting component to the internal surface of the disc reflective structure is reflected by the internal surface to form an axial parallel light and focused at the light collection area for reducing the light interference and enhancing the illumination so as to improve the light sensing effect of the optical mouse, lower its cost and reduce its electric power consumption.

Abstract: A third input device used in a mouse is constructed to have a wheel holder mounted on a bottom board inside the mouse, a roller, the roller having a closed outer side, an inner side, and a receiving open chamber in the inner side, an encoding wheel mounted inside the roller and pivoted with the roller to the wheel holder, the encoding wheel having a mechanical tooth form, and a locating plate coupled to the inner side of the roller for enabling the roller to be pivoted with the encoding wheel to the wheel holder, the locating plate holding a plurality of probes respectively disposed in contact with the tooth form of the encoding wheel and adapted to output a signal indicative of direction and amount of rotation of the encoding wheel and the roller.

Abstract: A light source is provided for an optical encoder. The optical encoder has an optical detector with a plurality of light receiving surfaces and an encoder wheel intermittently blocking a light from the light source. The light source comprises at least one light-emitting diode, a package casing; and a collimating unit with lenses corresponding to the light receiving surfaces. The collimating unit is one-piece formed with package casing or assembled to the package casing. The lenses are plane-convex lenses or double-convex lenses to overcome proximal interference.

Abstract: A third-axis input device of a mouse comprises a hollow roller stage mounted on a base of the mouse and a hollow roller pivotally arranged on the mouse's roller stage. The roller projects from the cover of the mouse. The roller has a closed lateral surface and an open lateral surface, defining an accommodation space therein. A ring is formed on an inner side of the closed lateral surface and extends within the accommodation space. The ring has a plurality of equally spaced apart tooth-shaped strips formed on a surface thereof to function as an encoder wheel. The encoder wheel is mounted with respect to an optical means having a case, a circuit board connected to the primary circuit board of the mouse, and an infrared transceiver.