Abstract: There is provided a physiological measurement device including a light source, an image sensor and a processor. The light source illuminates a skin surface with a first brightness value and a second brightness value. The image sensor receives scattered light from tissues below the skin surface, and outputs a first image frame corresponding to the first brightness value and a second image frame corresponding to the second brightness value. The processor calculates an intensity comparison index between the first image frame and the second image frame, calculates perfusion data according to the first image frame and/or the second image frame, and identifies a contact status according to the intensity comparison index.

Abstract: There is provided a physiological measurement device including a light source, an image sensor and a processor. The light source illuminates a skin surface with a first brightness value and a second brightness value. The image sensor receives scattered light from tissues below the skin surface, and outputs a first image frame corresponding to the first brightness value and a second image frame corresponding to the second brightness value. The processor calculates an intensity comparison index between the first image frame and the second image frame, calculates perfusion data according to the first image frame and/or the second image frame, and identifies a contact status according to the intensity comparison index.

Abstract: An arrangement for provision of vehicle tire sensory information while a tire (12) is mounted on a wheel rim (10) of a vehicle. A sensor unit (16) includes a tire condition sensor (e.g., electronics 38), a signal transmitter (36), and a housing (20) that contains the sensor and the transmitter. The housing (20) has a mounting hole. A stud (18) is welded to the rim (10) and extends into the space bounded between the tire (12) and the rim (10). The stud extends through the mounting hole of the sensor housing (20). A retainer (e.g., 26) extends between the sensor housing (20) and the stud (18) such that the sensor housing is held fixed relative to the stud.

Abstract: The present invention provides a roller positioning structure comprising a bottom seat, a roller, and a positioning part. The bottom seat has a pivotal portion letting the roller be pivotally disposed thereon. One end face of the roller is hollowed out, and the other end face thereof forms a sidewall to receive the positioning part. The positioning part has a connection end connected on the bottom seat. Projective veins and a resilient sheet are disposed between the positioning part and the roller. A press portion contacting the projective veins is convexly disposed on the resilient sheet. When the roller is poked, the press portion will jump on the projective veins to generate positioning touch, thereby obtaining more sensible positioning touch and reducing emitted sound.

Abstract: An arrangement for provision of vehicle tire sensory information while a tire (12) is mounted on a wheel rim (10) of a vehicle. A sensor unit (16) includes a tire condition sensor (e.g., electronics 38), a signal transmitter (36), and a housing (20) that contains the sensor and the transmitter. The housing (20) has a mounting hole. A stud (18) is welded to the rim (10) and extends into the space bounded between the tire (12) and the rim (10). The stud extends through the mounting hole of the sensor housing (20). A retainer (e.g., 26) extends between the sensor housing (20) and the stud (18) such that the sensor housing is held fixed relative to the stud.

Abstract: A digitizer device with anti-noise and status display having a hardware circuit controlled by a software program to eliminate outside noises. The system includes a cursor control mouse or stylus which emits an oscillating signal at several hundred KHz to induce a X-Y grid, an anti-noise circuit which eliminates outside noises from the induced signal, an ADC converter which converts the induced signal into a digital signal, a microcontroller unit which calculates the induced signal into corresponding X-Y axis coordinate value, and a display which shows the current status of the digitizer.