A detector (110) for determining a position of at least one object (112) is proposed. The detector (110) comprises: —at least two optical sensors (118, 120, 176), each optical sensor (118, 120, 176) having a light-sensitive area (122, 124), wherein each light-sensitive area (122, 124) has a geometrical center (182, 184), wherein the geometrical centers (182, 184) of the optical sensors (118, 120, 176) are spaced apart from an optical axis (126) of the detector (110) by different spatial offsets, wherein each optical sensor (118, 120, 176) is configured to generate a sensor signal in response to an illumination of its respective light-sensitive area (122, 124) by a light beam (116) propagating from the object (112) to the detector (110); and—at least one evaluation device (132) being configured for determining at least one longitudinal coordinate z of the object (112) by combining the at least two sensor signals.

A detector (110) for determining a position of at least one object (112) is proposed. The detector (110) comprises: —at least two optical sensors (118, 120, 176), each optical sensor (118, 120, 176) having a light-sensitive area (122, 124), wherein each light-sensitive area (122, 124) has a geometrical center (182, 184), wherein the geometrical centers (182, 184) of the optical sensors (118, 120, 176) are spaced apart from an optical axis (126) of the detector (110) by different spatial offsets, wherein each optical sensor (118, 120, 176) is configured to generate a sensor signal in response to an illumination of its respective light-sensitive area (122, 124) by a light beam (116) propagating from the object (112) to the detector (110); and—at least one evaluation device (132) being configured for determining at least one longitudinal coordinate z of the object (112) by combining the at least two sensor signals.

Disclosed herein are electronic devices having touch input surfaces. A user's touch input or press on the touch input surface is detected using a set of lasers, such as vertical-cavity surface-emitting lasers (VCSELs) that emit beams of light toward the touch input surface. The user's touch causes changes in the self-mixing interference within the VCSEL of the emitted light with reflected light, such as from the touch input surface. Deflection and movement (e.g., drag motion) of the user's touch is determined from detected changes in the VCSELs' operation due to the self-mixing interference.

Disclosed herein are electronic devices having touch input surfaces. A user's touch input or press on the touch input surface is detected using a set of lasers, such as vertical-cavity surface-emitting lasers (VCSELs) that emit beams of light toward the touch input surface. The user's touch causes changes in the self-mixing interference within the VCSEL of the emitted light with reflected light, such as from the touch input surface. Deflection and movement (e.g., drag motion) of the user's touch is determined from detected changes in the VCSELs' operation due to the self-mixing interference.

An optical distance measuring device includes a light-emitting unit emitting light, a light-receiving unit having a light-receiving pixel for receiving incident light and outputting a detection-signal corresponding to received-light intensity of the incident light, and a controller acquiring a detection-signal corresponding to received-light intensity of reflected light, which corresponds to the emitted light reflected by an object, from the light-receiving unit that has received the reflected light as the incident light, to detect a distance to the object by using the detection-signal corresponding to the received-light intensity. When a first object and a second object at distance which is N times a distance to the first object on an extension of a straight line connecting the measuring device and the first object are detected, and the second object is determined to be a pseudo object corresponding to the first object, the controller removes a detection result of the second object.

An optical distance measuring device includes a light-emitting unit emitting light, a light-receiving unit having a light-receiving pixel for receiving incident light and outputting a detection-signal corresponding to received-light intensity of the incident light, and a controller acquiring a detection-signal corresponding to received-light intensity of reflected light, which corresponds to the emitted light reflected by an object, from the light-receiving unit that has received the reflected light as the incident light, to detect a distance to the object by using the detection-signal corresponding to the received-light intensity. When a first object and a second object at distance which is N times a distance to the first object on an extension of a straight line connecting the measuring device and the first object are detected, and the second object is determined to be a pseudo object corresponding to the first object, the controller removes a detection result of the second object.

Aspects relate to techniques for communication between wireless communication devices using ranging channel information obtained by each of the wireless communication devices. For example, a first wireless communication device may obtain first monostatic ranging channel information based on reflected ranging signals received in response to transmission of a ranging signal. In addition, the first wireless communication device may receive ranging feedback information from a second wireless communication device associated with second monostatic ranging channel information obtained by the second wireless communication device. The first wireless communication device may then determine bistatic channel information from the first monostatic ranging channel information and the ranging feedback information and transmit a message to the second wireless communication device based on the bistatic channel information.

A method for identifying an object, an optical sensing apparatus and a system are provided. A controller of the system drives multiple light sources of the optical sensing apparatus to emit the multiple light beams with different beam angles, controls a light sensor to sense the lights reflected by the object, and performs the method for identifying the object. In the method, the light sensor is used to sense a first light emitted by a first light source with a first beam angle reflected by the object, and sense an intensity of the reflected first light. The light sensor is also used to sense a second light emitted by a second light source with a second beam angle reflected by the object and sense another intensity of the reflected second light. Therefore, the object can be identified by integrating information of the intensities obtained by the light sensor.

A method for identifying an object, an optical sensing apparatus and a system are provided. A controller of the system drives multiple light sources of the optical sensing apparatus to emit the multiple light beams with different beam angles, controls a light sensor to sense the lights reflected by the object, and performs the method for identifying the object. In the method, the light sensor is used to sense a first light emitted by a first light source with a first beam angle reflected by the object, and sense an intensity of the reflected first light. The light sensor is also used to sense a second light emitted by a second light source with a second beam angle reflected by the object and sense another intensity of the reflected second light. Therefore, the object can be identified by integrating information of the intensities obtained by the light sensor.

An object of the present invention is to sufficiently consider safety of human eyes in distance measurement. The present technology relates to a distance measurement device including: an irradiation unit configured to emit light to a target space; a light receiving unit configured to receive observation light in the target space and including a plurality of light receiving elements that outputs an electric signal; a light intensity calculation unit configured to calculate light intensity in the target space, on the basis of a first electric signal corresponding to reflected light from an object irradiated with first light included in the observation light received by the light receiving unit, the first light being emitted from the irradiation unit; and a distance measurement processing unit configured to perform a distance measurement process for calculating a distance to the object, on the basis of a second electric signal corresponding to reflected light from the object irradiated with second light included in the observation light received by the light receiving unit, the second light being emitted from the irradiation unit on the basis of the light intensity calculated by the light intensity calculation unit.