US20140321700A1 - Light sensing module and system - Google Patents

Light sensing module and system Download PDF

Info

Publication number
US20140321700A1
US20140321700A1 US14/106,835 US201314106835A US2014321700A1 US 20140321700 A1 US20140321700 A1 US 20140321700A1 US 201314106835 A US201314106835 A US 201314106835A US 2014321700 A1 US2014321700 A1 US 2014321700A1
Authority
US
United States
Prior art keywords
light
sensing module
light sensing
sensor
control unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US14/106,835
Inventor
Peng-Han Zhan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dyna Image Corp
Original Assignee
Lite On Semiconductor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lite On Semiconductor Corp filed Critical Lite On Semiconductor Corp
Priority to US14/106,835 priority Critical patent/US20140321700A1/en
Assigned to LITE-ON SEMICONDUCTOR CORPORATION reassignment LITE-ON SEMICONDUCTOR CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ZHAN, PENG-HAN
Publication of US20140321700A1 publication Critical patent/US20140321700A1/en
Assigned to DYNA IMAGE CORPORATION reassignment DYNA IMAGE CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LITE-ON SEMICONDUCTOR CORPORATION
Abandoned legal-status Critical Current

Links

Images

Classifications

    • G06K9/60—
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02—Details
    • H01L31/0232—Optical elements or arrangements associated with the device
    • H01L31/02327—Optical elements or arrangements associated with the device the optical elements being integrated or being directly associated to the device, e.g. back reflectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/50—Systems of measurement based on relative movement of target
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
    • G01S7/4813—Housing arrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
    • G06F13/24—Handling requests for interconnection or transfer for access to input/output bus using interrupt
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/0304—Detection arrangements using opto-electronic means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03547—Touch pads, in which fingers can move on a surface
    • G06T5/008—
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G06T5/94—Dynamic range modification of images or parts thereof based on local image properties, e.g. for local contrast enhancement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/16—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits
    • H01L25/167—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits comprising optoelectronic devices, e.g. LED, photodiodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/50—Multistep manufacturing processes of assemblies consisting of devices, each device being of a type provided for in group H01L27/00 or H01L29/00
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/04—Mounting of components, e.g. of leadless components
    • H05K13/046—Surface mounting
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J2001/4295—Photometry, e.g. photographic exposure meter using electric radiation detectors using a physical effect not covered by other subgroups of G01J1/42
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/02—Bonding areas; Manufacturing methods related thereto
    • H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
    • H01L2224/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
    • H01L2224/0554—External layer
    • H01L2224/0555—Shape
    • H01L2224/05552—Shape in top view
    • H01L2224/05554—Shape in top view being square
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/4805—Shape
    • H01L2224/4809—Loop shape
    • H01L2224/48091—Arched
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481—Disposition
    • H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
    • H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
    • H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
    • H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
    • H01L27/144—Devices controlled by radiation
    • H01L27/146—Imager structures
    • H01L27/14601—Structural or functional details thereof
    • H01L27/14618—Containers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
    • H01L27/144—Devices controlled by radiation
    • H01L27/146—Imager structures
    • H01L27/14601—Structural or functional details thereof
    • H01L27/14625—Optical elements or arrangements associated with the device
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Definitions

  • the present invention relates to a light sensing module and system, and more particularly, to a light sensing module and system capable of performing image sensing and object identification.
  • sensing devices Since mobile devices are equipped with diversified functions, various sensing devices have to be utilized for sensing peripheral environments in order to perform corresponding applications. For example, when a user uses the photographing functions, face recognition techniques are often utilized for focus. When the user plays a motion sensing game, subtle sensing devices are required to perform gesture recognition or object identification. With advancements in three dimensional (3D) display technology, a mobile device needs more complicated sensing devices to perform 3D image sensing and processing. Each sensing device in the current mobile device has a distinctive sensing function, however, and needs to be operated separately. Presently, there is no available sensing system which is capable of integrating various types of sensing devices. Thus, there is a need for improvement over the prior art.
  • the present invention discloses a light sensing module used in a light sensing system.
  • the light sensing system is incorporated with a processor.
  • the light sensing module comprises at least one first light source, for emitting light; at least one first light sensor, for sensing the light emitted by the first light source, light reflected by an ambient object or ambient light, in order to obtain a sensing result; a control unit, for performing image detecting and object identification or ambient light sensing by computing according to the sensing result, and generating a computational result; and at least one interrupt driver, for sending an interrupt signal to the processor, in order to notify the processor to receive the computational result; wherein the processor disposes a type and a number of the first light sensor, and configures the control unit accordingly, so that the control unit performs computation on the sensing result to generate the computational result.
  • the present invention further discloses a light sensing system.
  • the light sensing system comprises a processor; and at least one light sensing module.
  • One of the light sensing modules comprises at least one first light source, for emitting light; at least one first light sensor, for sensing the light emitted by the first light source, light reflected by an ambient object or ambient light, in order to obtain a sensing result; a control unit, for performing image detecting and object identification or ambient light sensing by computing according to the sensing result, and generating a computational result; and at least one interrupt driver, for sending an interrupt signal to the processor, in order to notify the processor to receive the computational result; wherein the processor disposes a type and a number of the first light sensor, and configures the control unit accordingly, so that the control unit performs computation on the sensing result to generate the computational result.
  • FIG. 1 is a schematic diagram of a light sensing module according to an embodiment of the present invention.
  • FIG. 2A is a schematic diagram of a general light sensing system.
  • FIG. 2B is a schematic diagram of a light sensing module according to an embodiment of the present invention.
  • FIG. 3A is a schematic diagram of a general 3D image sensing system.
  • FIG. 3B is a schematic diagram of a light sensing system according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a light sensing system according to an embodiment of the present invention.
  • FIG. 1 is a schematic diagram of a light sensing module 10 according to an embodiment of the present invention.
  • the light sensing module 10 includes light sources 102 _ 1 - 102 _X, light sensors 104 _ 1 - 104 _M, light source ports 106 _ 1 - 106 _Y, light sensor ports 108 _ 1 - 108 _N, a control unit 110 , interrupt drivers 112 _ 1 - 112 _Z, a synchronization device 114 , a light sensor interface 116 and an I/O interface 118 .
  • the light sensing module 10 is electrically connected to a processor 120 , which controls the operations of the light sensing module 10 .
  • the light sources 102 _ 1 - 102 _X are utilized for emitting light. The light may be reflected when reaching an object, and object identification may be performed accordingly.
  • the light source ports 106 _ 1 - 106 _Y which are externally connected to external light sources 130 _ 1 - 130 _Y, respectively, may drive the external light sources 130 _ 1 - 130 _Y to emit light.
  • the control unit 110 may dispose the type and number of the light sources 102 _ 1 - 102 _X and the light source ports 106 _ 1 - 106 _Y according to configurations of the processor 120 .
  • the user may dispose more commonly used light sources as the light sources 102 _ 1 - 102 _X, and dispose less used light sources as the external light sources 130 _ 1 - 130 _Y.
  • the external light sources 130 _ 1 - 130 _Y are externally connected to the light source ports 106 _ 1 - 106 _Y only when they are needed, in order to save on area and cost of the system.
  • the light sensors 104 _ 1 - 104 _M are utilized for detecting the light emitted by the light sources 102 _ 1 - 102 _X or the external light sources 130 _ 1 - 130 _Y, as well as light reflected by peripheral objects or ambient light, in order to obtain a sensing result.
  • the light sensor ports 108 _ 1 - 108 _N which are externally connected to the external light sensors 140 _ 1 - 140 _N, respectively, may be utilized for transmitting data detected by the external light sensors 140 _ 1 - 140 _N.
  • the processor 120 may arbitrarily dispose the type and number of the light sensors 104 _ 1 - 104 _M and the number of the light sensor ports 108 _ 1 - 108 _N. According to system requirements, the user may dispose more commonly used light sensors as the light sensors 104 _ 1 - 104 _M, and dispose less used light sensors as the external light sensors 140 _ 1 - 140 _N.
  • the external light sensors 140 _ 1 - 140 _N are externally connected to the light sensor ports 108 _ 1 - 108 _N only when they are needed, in order to save on area and cost of the system.
  • the light sources 102 _ 1 - 102 _X or the external light sources 130 _ 1 - 130 _Y may emit light, and the light sensors 104 _ 1 - 104 _M and the external light sensors 140 _ 1 - 140 _N detect the reflected light. Accordingly, the light sensors 104 _ 1 - 104 _M and the external light sensors 140 _ 1 - 140 _N may detect locational information such as the movement or distance of the object, in order to perform the object identification.
  • the light sources 102 _ 1 - 102 _X and the external light sources 130 _ 1 - 130 _Y may be composed of various materials or elements which are able to emit light, e.g.
  • the light sources 102 _ 1 - 102 _X or the external light sources 130 _ 1 - 130 _Y may be realized by infrared LEDs, and thus the corresponding light sensors 104 _ 1 - 104 _M or external light sensors 140 _ 1 - 140 _N have to be implemented as infrared sensors for performing the detection.
  • the light sensors 104 _ 1 - 104 _M and the external light sensors 140 _ 1 - 140 _N may include a proximity sensor, ambient light sensor, color sensor, and image sensor, etc. Different types of detectors may be implemented for different applications.
  • the control unit 110 may integrate the sensing results of various light sensors and perform the image sensing, object identification or ambient light sensing via computation in order to generate a computational result.
  • the light sensors 104 _ 1 - 104 _M and the external light sensors 140 _ 1 - 140 _N may include a proximity sensor and an ambient light sensor.
  • the ambient light sensor which may be utilized for detecting the location of a user's hand, may obtain movement information of the hand via the locations detected at different time points.
  • the proximity sensor which may be utilized for detecting the distance between the hand and the device, may obtain information related to proximity movement of the hand via the distances detected at different time points.
  • the control unit 110 may combine the sensing results generated from the ambient light sensor and the proximity sensor and obtain the accurate location and movement of the gesture via computation, in order to accomplish the gesture recognition.
  • the processor 120 may configure the light sensing module 10 to perform 3D image sensing, and thus the light sensing module 10 may include two light sensors 104 _L and 104 _R located in different locations for simulating the gaze of a user's left eye and right eye, respectively.
  • the control unit 110 obtains the sensing results from the light sensors 104 _L and 104 _R, respectively, and then performs follow-up operations and processing by simulating the visual processing analogous to human eyes, in order to generate the computational results.
  • the interrupt drivers 112 _ 1 - 112 _Z are utilized for sending interrupt signals to the processor 120 , in order to notify the processor 120 to receive the computational results.
  • the processor 120 may be a central processing unit (CPU), a microprocessor, or a micro control unit (MCU), etc.
  • the processor 120 may control the operations of the light sensing system and the light sensing module, and may also be utilized for controlling the entire operations of the mobile device. In such a condition, the processor 120 may not dispose all resources for processing data of the light sensing system or the light sensing module.
  • the light sensing module 10 may only notify the processor 120 to read the computational results when the computational results are generated by the control unit 110 .
  • the interrupt drivers 112 _ 1 - 112 _Z may be utilized for sending interrupt signals.
  • the processor 120 may learn that the control unit 110 obtains a specific computational result and dispose resources for receiving the result. If the processor 120 does not receive any interrupt signals, the processor 120 may dispose the resources for other devices, and thus may not need to keep detecting or monitoring the control unit 110 .
  • the resources of the processor 120 may be utilized more efficiently. For example, when gesture recognition is performed, the system is triggered due to variations in the gesture; hence the interrupt drivers 112 _ 1 - 112 _Z may need to send an interrupt signal to notify the processor 120 to receive data only when the gesture varies.
  • the synchronization device 114 of the light sensing module 10 is utilized for connecting other light sensing modules.
  • alight sensing system may include at least one light sensing module, each of which has light sources and light sensors.
  • the processor 120 has to execute operations corresponding to the sensing results generated by these light sensing modules.
  • the synchronization device 114 may be connected to other light sensing modules and utilized for synchronizing the output data generated from each light sensing module, so that the control device 110 may effectively integrate the output data of each light sensing module.
  • the light sensors for simulating the left eye and the right eye may be implemented by two different light sensing modules.
  • the light sensing system may integrate the data generated from these two light sensors.
  • the synchronization device then performs synchronization and outputs the data to the processor 120 , in order to achieve 3D image sensing.
  • the light sensor interface 116 and the I/O interface 118 which are utilized as connection interfaces of the light sensing module 10 , are electrically connected between the control unit 110 and each device of the light sensing module 10 . As shown in FIG. 1 , one terminal of the light sensor interface 116 is connected to the control unit 110 , and the other terminal of the light sensor interface 116 is connected to the light sensors 104 _ 1 - 104 _M and the light sensor ports 108 _ 1 - 108 _N.
  • the light sensor interface 116 provides a medium for signal transmission so that the control unit 110 may control the operations of the light sensors 104 _ 1 - 104 _M and the external light sensors 140 _ 1 - 140 _N and receive the sensing results generated from the light sensors 104 _ 1 - 104 _M and the external light sensors 140 _ 1 - 140 _N.
  • One terminal of the I/O interface 118 is connected to the control unit 110 , and the other terminal of the I/O interface 118 is connected to the light sources 102 _ 1 - 102 _X, the light source ports 106 _ 1 - 106 _Y, the interrupt drivers 112 _ 1 - 112 _Z and the synchronization device 114 .
  • the I/O interface 118 provides a medium for signal transmission so that the control unit 110 may drive the operations of the light sources 102 _ 1 - 102 _X and the light source ports 106 _ 1 - 106 _Y, and control the interrupt drivers 112 _ 1 - 112 _Z to send interrupt signals and control the synchronization operations of the synchronization device 114 .
  • the implementation of the light sensor interface 116 and the I/O interface 118 described here is only one of various embodiments of the connection interface.
  • the control unit 110 may be connected to other devices through other types of interfaces or in other manners, and should not be limited herein.
  • the processor 120 may dispose the type and number of the light sensors 104 _ 1 - 104 _M and the external light sensors 140 _ 1 - 140 _N according to system requirements, and configure various parameters of all light sensors such as resolution and sensing frequency.
  • the processor 120 controls the control unit 110 to perform corresponding settings such as the strength of output signals, the type of output signals and the strength of driving signals according to the above configurations.
  • the control unit 110 may distribute the types and numbers of the light sources 102 _ 1 - 102 _X and the external light sources 130 _ 1 - 130 _Y.
  • the control unit 110 then timely drives the light sources 102 _ 1 - 102 _X or the external light sources 130 _ 1 - 130 _Y for corresponding applications.
  • the control unit 110 may perform computation or analysis on the sensing results according to the above settings, in order to convert the sensing results into computational results which will be outputted to the processor 120 .
  • the sensing results generated by the light sensors 104 _ 1 - 104 _M or the external light sensors 140 _ 1 - 140 _N may be the location of the user's hand at each time point, and the computational results generated via the computation or analysis of the control unit 110 may be meaningful gestures, such as zooming, page turning and moving.
  • the present invention may integrate various image sensors and light sensors, in order to implement various applications such as gesture recognition, face recognition, 3D imaging, information security and interactive games.
  • Those skilled in the art can make modifications and alternations accordingly.
  • the types and numbers of the abovementioned light sources 102 _ 1 - 102 _X, external light sources 130 _ 1 - 130 _Y, light sensors 104 _ 1 - 104 _M and external light sensors 140 _ 1 - 140 _N may arbitrarily be adjusted according to system requirements.
  • such modules or devices may also be adjusted dynamically according to the variations of the sensing mode.
  • the light sensing module 10 may be realized in different ways.
  • the light sensing module 10 may be realized by a system on a chip (SoC), where the cost of the light sensing modules may be significantly reduced when the light sensing modules are integrated into a single chip.
  • SoC system on a chip
  • alight sensing system having multiple light sensing modules may be utilized, and each light sensing module may be realized by an SoC.
  • the light sensing module 10 may be realized inside any type of integrated circuit (IC) packages, and is not limited herein.
  • FIG. 2A is a schematic diagram of a general light sensing system 20 A.
  • the light sensing system 20 A includes light sensors 202 , 204 and light sources 206 , 208 .
  • the light sensing system 20 A is electrically connected to a processor 220 , which controls the operations of the light sensing system 20 A.
  • the light sensor 202 and the light source 206 may co-operate to perform various light sensing functions, and the light sensor 204 and the light source 208 may also co-operate to perform light sensing functions.
  • the present invention may integrate various light sensors and light sources into a light sensing module. Please refer to FIG.
  • FIG. 2B is a schematic diagram of a light sensing module 20 B according to an embodiment of the present invention.
  • the light sensors 202 and 204 may be integrated into the light sensing module 20 B.
  • the light sources 206 and 208 are utilized for emitting light having the same frequency, only one light source (e.g. the light source 206 ) is needed in the light sensing module 20 B to realize light sensing functions of both light sensors 202 and 204 .
  • the integration of the light sensing module 20 B at least two benefits can be achieved.
  • the number of light sources may be reduced, which reduces the area and cost of the system.
  • the processor 220 may not need to process the operations of multiple light sensors simultaneously.
  • the processor 220 may only need to communicate with the control unit, which significantly reduces the load of the processor 220 .
  • the light sensing module 20 B may also be realized by an SoC, which further reduces the cost.
  • FIG. 3A is a schematic diagram of a general 3D image sensing system 30 A.
  • the 3D image sensing system 30 A includes light sensors 302 , 304 and light sources 306 , 308 .
  • the 3D image sensing system 30 A is electrically connected to a processor 320 , which controls the operations of the 3D image sensing system 30 A.
  • the light sensor 302 and the light source 306 may co-operate to simulate the gaze of a user's left eye
  • the light sensor 304 and the light source 308 may co-operate to simulate the gaze of a user's right eye.
  • the processor 320 is electrically connected to both the light sensors 302 and 304 , in order to perform the synchronization between the light sensors 302 and 304 .
  • the light sensing modules may be synchronized with each other via a synchronization device.
  • FIG. 3 B is a schematic diagram of a light sensing system 30 B according to an embodiment of the present invention.
  • different light sensing modules may be utilized for simulating the gaze of the user's left eye and right eye, respectively.
  • the light sensing system 30 B includes light sensing modules 300 and 310 .
  • the light sensor 302 and the light source 306 may co-operate to simulate the gaze of the user's left eye.
  • the light sensing module 300 further includes a synchronization device 340 , which is utilized for performing synchronization.
  • the light sensor 304 and the light source 308 may co-operate to simulate the gaze of the user's right eye.
  • the light sensing module 310 further includes a synchronization device 350 , which is utilized for performing synchronization.
  • the synchronization device 340 is electrically connected to the synchronization device 350 , in order to transmit synchronizing signals between the two for performing synchronization.
  • the synchronization may be performed inside the light sensing system 30 B, so that the processor 320 may not have to process the synchronization between different light sensors. This significantly reduces the load of the processor 320 .
  • FIG. 4 is a schematic diagram of alight sensing system 40 according to an embodiment of the present invention.
  • the light sensing system 40 includes a light sensing module 400 , which is utilized for performing face recognition.
  • the light sensing module 400 includes a light sensor 402 , a light source 404 and a light source port 406 .
  • the light sensing module 400 is electrically connected to a processor 420 , which controls the operations of the light sensing module 400 .
  • the light sensing modules of the present invention may be selectively connected to external light sensors or external light sources via light sensor ports or light source ports, which increases the flexibility in the usage of light sensors or light sources.
  • a greater light source should sometimes be utilized; hence, a larger light source 408 may be externally connected to the light source port 406 , wherein the light source 408 may be turned on when in use, and turned off or removed when not in use. As a result, the flexibility of using the light sources may be increased. When the larger or less used light source 408 is externally connected, the size and cost of the light sensing module 400 may also be reduced.
  • the embodiment of the present invention may also realize wider applications such as information security or games.
  • the user may predefine a specific gesture as a password to turn on a mobile device, or utilize more complex procedures such as eyeball identification or fingerprint identification to perform information security.
  • the gestures and actions of the user may be detected to achieve the interaction.
  • the light sensing module of the present invention may also be considered as a human-based input interface, e.g. the user may use gestures to simulate movements of a mouse. Any types of applications related to devices or elements for image identification or optical sensing may all be included in the light sensing modules or light sensing systems of the present invention, and is not limited herein.
  • each sensing device in the mobile device has a distinctive sensing function and is operated separately.
  • the present invention provides a light sensing module and system, which are capable of integrating various image sensors and light sensors, in order to perform applications such as gesture recognition, face recognition, 3D display, information security and interactive games, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electromagnetism (AREA)
  • Human Computer Interaction (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Remote Sensing (AREA)
  • Manufacturing & Machinery (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Bus Control (AREA)
  • Position Input By Displaying (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
  • User Interface Of Digital Computer (AREA)
  • Light Receiving Elements (AREA)
  • Communication Control (AREA)
  • Selective Calling Equipment (AREA)

Abstract

A light sensing module used in a light sensing system incorporated with a processor includes at least one first light source, for emitting light; at least one first light sensor, for sensing the light emitted by the first light source, light reflected by an ambient object or ambient light, in order to obtain a sensing result; a control unit, for performing image detecting and object identification or ambient light sensing by computing according to the sensing result, and generating a computational result; and at least one interrupt driver, for sending an interrupt signal to the processor, in order to notify the processor to receive the computational result; wherein the processor disposes a type and a number of the first light sensor, and configures the control unit accordingly, so that the control unit performs computation on the sensing result to generate the computational result.

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • This application claims the benefit of U.S. Provisional Application No. 61/817,306, filed on Apr. 29, 2013 and entitled “3D-Motion Gesture/Proximity Detection Module Sensor (MGPS)”, the contents of which are incorporated herein by reference.
    • BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to a light sensing module and system, and more particularly, to a light sensing module and system capable of performing image sensing and object identification.
  • 2. Description of the Prior Art
  • With advancements in technology, mobile devices such as smart phones and tablets have become indispensable in our daily life. Compared with conventional mobile phones that only have communication functions, modern mobile devices combine various functions such as communication, networking, photographing, games and data processing. This type of multifunctional design is more attractive to consumers.
  • Since mobile devices are equipped with diversified functions, various sensing devices have to be utilized for sensing peripheral environments in order to perform corresponding applications. For example, when a user uses the photographing functions, face recognition techniques are often utilized for focus. When the user plays a motion sensing game, subtle sensing devices are required to perform gesture recognition or object identification. With advancements in three dimensional (3D) display technology, a mobile device needs more complicated sensing devices to perform 3D image sensing and processing. Each sensing device in the current mobile device has a distinctive sensing function, however, and needs to be operated separately. Presently, there is no available sensing system which is capable of integrating various types of sensing devices. Thus, there is a need for improvement over the prior art.
    • SUMMARY OF THE INVENTION
  • It is therefore an objective of the present invention to provide alight sensing module and system capable of integrating various image sensors and light sensors, in order to perform applications such as gesture recognition, face recognition, 3D display, information security and interactive games, etc.
  • The present invention discloses a light sensing module used in a light sensing system. The light sensing system is incorporated with a processor. The light sensing module comprises at least one first light source, for emitting light; at least one first light sensor, for sensing the light emitted by the first light source, light reflected by an ambient object or ambient light, in order to obtain a sensing result; a control unit, for performing image detecting and object identification or ambient light sensing by computing according to the sensing result, and generating a computational result; and at least one interrupt driver, for sending an interrupt signal to the processor, in order to notify the processor to receive the computational result; wherein the processor disposes a type and a number of the first light sensor, and configures the control unit accordingly, so that the control unit performs computation on the sensing result to generate the computational result.
  • The present invention further discloses a light sensing system. The light sensing system comprises a processor; and at least one light sensing module. One of the light sensing modules comprises at least one first light source, for emitting light; at least one first light sensor, for sensing the light emitted by the first light source, light reflected by an ambient object or ambient light, in order to obtain a sensing result; a control unit, for performing image detecting and object identification or ambient light sensing by computing according to the sensing result, and generating a computational result; and at least one interrupt driver, for sending an interrupt signal to the processor, in order to notify the processor to receive the computational result; wherein the processor disposes a type and a number of the first light sensor, and configures the control unit accordingly, so that the control unit performs computation on the sensing result to generate the computational result.
  • These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a schematic diagram of a light sensing module according to an embodiment of the present invention.
  • FIG. 2A is a schematic diagram of a general light sensing system.
  • FIG. 2B is a schematic diagram of a light sensing module according to an embodiment of the present invention.
  • FIG. 3A is a schematic diagram of a general 3D image sensing system.
  • FIG. 3B is a schematic diagram of a light sensing system according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a light sensing system according to an embodiment of the present invention.
    •  DETAILED DESCRIPTION
  • Please refer to FIG. 1, which is a schematic diagram of a light sensing module 10 according to an embodiment of the present invention. As shown in FIG. 1, the light sensing module 10 includes light sources 102_1-102_X, light sensors 104_1-104_M, light source ports 106_1-106_Y, light sensor ports 108_1-108_N, a control unit 110, interrupt drivers 112_1-112_Z, a synchronization device 114, a light sensor interface 116 and an I/O interface 118. The light sensing module 10 is electrically connected to a processor 120, which controls the operations of the light sensing module 10. The light sources 102_1-102_X are utilized for emitting light. The light may be reflected when reaching an object, and object identification may be performed accordingly. The light source ports 106_1-106_Y, which are externally connected to external light sources 130_1-130_Y, respectively, may drive the external light sources 130_1-130_Y to emit light. The control unit 110 may dispose the type and number of the light sources 102_1-102_X and the light source ports 106_1-106_Y according to configurations of the processor 120. According to system requirements, the user may dispose more commonly used light sources as the light sources 102_1-102_X, and dispose less used light sources as the external light sources 130_1-130_Y. The external light sources 130_1-130_Y are externally connected to the light source ports 106_1-106_Y only when they are needed, in order to save on area and cost of the system. The light sensors 104_1-104_M are utilized for detecting the light emitted by the light sources 102_1-102_X or the external light sources 130_1-130_Y, as well as light reflected by peripheral objects or ambient light, in order to obtain a sensing result. The light sensor ports 108_1-108_N, which are externally connected to the external light sensors 140_1-140_N, respectively, may be utilized for transmitting data detected by the external light sensors 140_1-140_N. Similarly, the processor 120 may arbitrarily dispose the type and number of the light sensors 104_1-104_M and the number of the light sensor ports 108_1-108_N. According to system requirements, the user may dispose more commonly used light sensors as the light sensors 104_1-104_M, and dispose less used light sensors as the external light sensors 140_1-140_N. The external light sensors 140_1-140_N are externally connected to the light sensor ports 108_1-108_N only when they are needed, in order to save on area and cost of the system.
  • When gesture recognition or object identification is performed, the light sources 102_1-102_X or the external light sources 130_1-130_Y may emit light, and the light sensors 104_1-104_M and the external light sensors 140_1-140_N detect the reflected light. Accordingly, the light sensors 104_1-104_M and the external light sensors 140_1-140_N may detect locational information such as the movement or distance of the object, in order to perform the object identification. The light sources 102_1-102_X and the external light sources 130_1-130_Y may be composed of various materials or elements which are able to emit light, e.g. light emitting diodes (LED). In some embodiments, the light sources 102_1-102_X or the external light sources 130_1-130_Y may be realized by infrared LEDs, and thus the corresponding light sensors 104_1-104_M or external light sensors 140_1-140_N have to be implemented as infrared sensors for performing the detection. The light sensors 104_1-104_M and the external light sensors 140_1-140_N may include a proximity sensor, ambient light sensor, color sensor, and image sensor, etc. Different types of detectors may be implemented for different applications.
  • According to the sensing results of the light sensors 104_1-104_M or the external light sensors 140_1-140_N and the configurations of the processor, the control unit 110 may integrate the sensing results of various light sensors and perform the image sensing, object identification or ambient light sensing via computation in order to generate a computational result. For example, in order to perform the gesture recognition, the light sensors 104_1-104_M and the external light sensors 140_1-140_N may include a proximity sensor and an ambient light sensor. The ambient light sensor, which may be utilized for detecting the location of a user's hand, may obtain movement information of the hand via the locations detected at different time points. The proximity sensor, which may be utilized for detecting the distance between the hand and the device, may obtain information related to proximity movement of the hand via the distances detected at different time points. The control unit 110 may combine the sensing results generated from the ambient light sensor and the proximity sensor and obtain the accurate location and movement of the gesture via computation, in order to accomplish the gesture recognition. In another embodiment, the processor 120 may configure the light sensing module 10 to perform 3D image sensing, and thus the light sensing module 10 may include two light sensors 104_L and 104_R located in different locations for simulating the gaze of a user's left eye and right eye, respectively. The control unit 110 obtains the sensing results from the light sensors 104_L and 104_R, respectively, and then performs follow-up operations and processing by simulating the visual processing analogous to human eyes, in order to generate the computational results.
  • The interrupt drivers 112_1-112_Z are utilized for sending interrupt signals to the processor 120, in order to notify the processor 120 to receive the computational results. In general, the processor 120 may be a central processing unit (CPU), a microprocessor, or a micro control unit (MCU), etc. The processor 120 may control the operations of the light sensing system and the light sensing module, and may also be utilized for controlling the entire operations of the mobile device. In such a condition, the processor 120 may not dispose all resources for processing data of the light sensing system or the light sensing module. In order to prevent the operations of the light sensing module 10 from being interfered with by the operations of other devices, the light sensing module 10 may only notify the processor 120 to read the computational results when the computational results are generated by the control unit 110. At this moment, the interrupt drivers 112_1-112_Z may be utilized for sending interrupt signals. After the processor 120 receives an interrupt signal, the processor 120 may learn that the control unit 110 obtains a specific computational result and dispose resources for receiving the result. If the processor 120 does not receive any interrupt signals, the processor 120 may dispose the resources for other devices, and thus may not need to keep detecting or monitoring the control unit 110. As a result, the resources of the processor 120 may be utilized more efficiently. For example, when gesture recognition is performed, the system is triggered due to variations in the gesture; hence the interrupt drivers 112_1-112_Z may need to send an interrupt signal to notify the processor 120 to receive data only when the gesture varies.
  • The synchronization device 114 of the light sensing module 10 is utilized for connecting other light sensing modules. In general, alight sensing system may include at least one light sensing module, each of which has light sources and light sensors. When a light sensing system includes a plurality of light sensing modules, the processor 120 has to execute operations corresponding to the sensing results generated by these light sensing modules. Please note that the data outputted by different light sensing modules have to be synchronized. In such a condition, the synchronization device 114 may be connected to other light sensing modules and utilized for synchronizing the output data generated from each light sensing module, so that the control device 110 may effectively integrate the output data of each light sensing module. For example, in the above embodiment of 3D image sensing, the light sensors for simulating the left eye and the right eye may be implemented by two different light sensing modules. The light sensing system may integrate the data generated from these two light sensors. The synchronization device then performs synchronization and outputs the data to the processor 120, in order to achieve 3D image sensing.
  • The light sensor interface 116 and the I/O interface 118, which are utilized as connection interfaces of the light sensing module 10, are electrically connected between the control unit 110 and each device of the light sensing module 10. As shown in FIG. 1, one terminal of the light sensor interface 116 is connected to the control unit 110, and the other terminal of the light sensor interface 116 is connected to the light sensors 104_1-104_M and the light sensor ports 108_1-108_N. The light sensor interface 116 provides a medium for signal transmission so that the control unit 110 may control the operations of the light sensors 104_1-104_M and the external light sensors 140_1-140_N and receive the sensing results generated from the light sensors 104_1-104_M and the external light sensors 140_1-140_N. One terminal of the I/O interface 118 is connected to the control unit 110, and the other terminal of the I/O interface 118 is connected to the light sources 102_1-102_X, the light source ports 106_1-106_Y, the interrupt drivers 112_1-112_Z and the synchronization device 114. The I/O interface 118 provides a medium for signal transmission so that the control unit 110 may drive the operations of the light sources 102_1-102_X and the light source ports 106_1-106_Y, and control the interrupt drivers 112_1-112_Z to send interrupt signals and control the synchronization operations of the synchronization device 114. Please note that the implementation of the light sensor interface 116 and the I/O interface 118 described here is only one of various embodiments of the connection interface. The control unit 110 may be connected to other devices through other types of interfaces or in other manners, and should not be limited herein.
  • When the light sensing module 10 is operated, the processor 120 may dispose the type and number of the light sensors 104_1-104_M and the external light sensors 140_1-140_N according to system requirements, and configure various parameters of all light sensors such as resolution and sensing frequency. The processor 120 then controls the control unit 110 to perform corresponding settings such as the strength of output signals, the type of output signals and the strength of driving signals according to the above configurations. In several embodiments (e.g. an object identification application), when a light source is required, the control unit 110 may distribute the types and numbers of the light sources 102_1-102_X and the external light sources 130_1-130_Y. The control unit 110 then timely drives the light sources 102_1-102_X or the external light sources 130_1-130_Y for corresponding applications. After the control unit 110 obtains the sensing results, the control unit 110 may perform computation or analysis on the sensing results according to the above settings, in order to convert the sensing results into computational results which will be outputted to the processor 120. For example, when gesture recognition is performed, the sensing results generated by the light sensors 104_1-104_M or the external light sensors 140_1-140_N may be the location of the user's hand at each time point, and the computational results generated via the computation or analysis of the control unit 110 may be meaningful gestures, such as zooming, page turning and moving.
  • Please note that the present invention may integrate various image sensors and light sensors, in order to implement various applications such as gesture recognition, face recognition, 3D imaging, information security and interactive games. Those skilled in the art can make modifications and alternations accordingly. For example, the types and numbers of the abovementioned light sources 102_1-102_X, external light sources 130_1-130_Y, light sensors 104_1-104_M and external light sensors 140_1-140_N may arbitrarily be adjusted according to system requirements. In the process of sensing, such modules or devices may also be adjusted dynamically according to the variations of the sensing mode. The light sensing module 10 may be realized in different ways. In an embodiment, the light sensing module 10 may be realized by a system on a chip (SoC), where the cost of the light sensing modules may be significantly reduced when the light sensing modules are integrated into a single chip. In an embodiment, if the system is utilized for sensing 3D images and needs multiple light sensing points, alight sensing system having multiple light sensing modules may be utilized, and each light sensing module may be realized by an SoC. As a result, the light sensing system may still achieve diversified functions even when the cost is limited. The light sensing module 10 may be realized inside any type of integrated circuit (IC) packages, and is not limited herein.
  • Please refer to FIG. 2A, which is a schematic diagram of a general light sensing system 20A. As shown in FIG. 2A, the light sensing system 20A includes light sensors 202, 204 and light sources 206, 208. The light sensing system 20A is electrically connected to a processor 220, which controls the operations of the light sensing system 20A. The light sensor 202 and the light source 206 may co-operate to perform various light sensing functions, and the light sensor 204 and the light source 208 may also co-operate to perform light sensing functions. In comparison, the present invention may integrate various light sensors and light sources into a light sensing module. Please refer to FIG. 2B, which is a schematic diagram of a light sensing module 20B according to an embodiment of the present invention. As shown in FIG. 2B, the light sensors 202 and 204 may be integrated into the light sensing module 20B. If the light sources 206 and 208 are utilized for emitting light having the same frequency, only one light source (e.g. the light source 206) is needed in the light sensing module 20B to realize light sensing functions of both light sensors 202 and 204. According to the integration of the light sensing module 20B, at least two benefits can be achieved. The number of light sources may be reduced, which reduces the area and cost of the system. The processor 220 may not need to process the operations of multiple light sensors simultaneously. Since a control unit (not illustrated) of the light sensing module 20B may integrate the sensing results generated by all light sensors in the light sensing module 20B, the processor 220 may only need to communicate with the control unit, which significantly reduces the load of the processor 220. In addition, the light sensing module 20B may also be realized by an SoC, which further reduces the cost.
  • Please refer to FIG. 3A, which is a schematic diagram of a general 3D image sensing system 30A. As shown in FIG. 3A, the 3D image sensing system 30A includes light sensors 302, 304 and light sources 306, 308. The 3D image sensing system 30A is electrically connected to a processor 320, which controls the operations of the 3D image sensing system 30A. The light sensor 302 and the light source 306 may co-operate to simulate the gaze of a user's left eye, and the light sensor 304 and the light source 308 may co-operate to simulate the gaze of a user's right eye. The processor 320 is electrically connected to both the light sensors 302 and 304, in order to perform the synchronization between the light sensors 302 and 304. In comparison, according to the light sensing modules and systems of the present invention, the light sensing modules may be synchronized with each other via a synchronization device. Please refer to FIG. 3B, which is a schematic diagram of a light sensing system 30B according to an embodiment of the present invention. When performing 3D image simulation, different light sensing modules may be utilized for simulating the gaze of the user's left eye and right eye, respectively. As shown in FIG. 3B, the light sensing system 30B includes light sensing modules 300 and 310. In the light sensing module 300, the light sensor 302 and the light source 306 may co-operate to simulate the gaze of the user's left eye. The light sensing module 300 further includes a synchronization device 340, which is utilized for performing synchronization. In the light sensing module 310, the light sensor 304 and the light source 308 may co-operate to simulate the gaze of the user's right eye. The light sensing module 310 further includes a synchronization device 350, which is utilized for performing synchronization. The synchronization device 340 is electrically connected to the synchronization device 350, in order to transmit synchronizing signals between the two for performing synchronization. As a result, the synchronization may be performed inside the light sensing system 30B, so that the processor 320 may not have to process the synchronization between different light sensors. This significantly reduces the load of the processor 320.
  • Please refer to FIG. 4, which is a schematic diagram of alight sensing system 40 according to an embodiment of the present invention. As shown in FIG. 4, the light sensing system 40 includes a light sensing module 400, which is utilized for performing face recognition. The light sensing module 400 includes a light sensor 402, a light source 404 and a light source port 406. The light sensing module 400 is electrically connected to a processor 420, which controls the operations of the light sensing module 400. As mentioned above, the light sensing modules of the present invention may be selectively connected to external light sensors or external light sources via light sensor ports or light source ports, which increases the flexibility in the usage of light sensors or light sources. For the light sensing module 400 that performs face recognition, a greater light source should sometimes be utilized; hence, a larger light source 408 may be externally connected to the light source port 406, wherein the light source 408 may be turned on when in use, and turned off or removed when not in use. As a result, the flexibility of using the light sources may be increased. When the larger or less used light source 408 is externally connected, the size and cost of the light sensing module 400 may also be reduced.
  • In addition to possessing the abovementioned benefits, the embodiment of the present invention may also realize wider applications such as information security or games. For performing information security, the user may predefine a specific gesture as a password to turn on a mobile device, or utilize more complex procedures such as eyeball identification or fingerprint identification to perform information security. For the games application, especially motion sensing games, the gestures and actions of the user may be detected to achieve the interaction. In other applications, the light sensing module of the present invention may also be considered as a human-based input interface, e.g. the user may use gestures to simulate movements of a mouse. Any types of applications related to devices or elements for image identification or optical sensing may all be included in the light sensing modules or light sensing systems of the present invention, and is not limited herein.
  • In the prior art, each sensing device in the mobile device has a distinctive sensing function and is operated separately. There is no available sensing system capable of integrating various types of sensing devices. In comparison, the present invention provides a light sensing module and system, which are capable of integrating various image sensors and light sensors, in order to perform applications such as gesture recognition, face recognition, 3D display, information security and interactive games, etc.
  • Those skilled in the art will readily observe that numerous modifications and alterations of the device and method may be made while retaining the teachings of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.

Claims (22)

What is claimed is:
1. A light sensing module used in a light sensing system incorporated with a processor, the light sensing module comprising:
at least one first light source, for emitting light;
at least one first light sensor, for sensing the light emitted by the first light source, light reflected by an ambient object or ambient light, in order to obtain a sensing result;
a control unit, for performing image detecting and object identification or ambient light sensing by computing according to the sensing result, and generating a computational result; and
at least one interrupt driver, for sending an interrupt signal to the processor in order to notify the processor to receive the computational result;
wherein the processor disposes a type and a number of the first light sensor, and configures the control unit accordingly, so that the control unit performs computation on the sensing result to generate the computational result.
2. The light sensing module of claim 1, wherein the control unit further disposes a type and a number of the first light source according to configurations of the processor.
3. The light sensing module of claim 1, wherein the first light sensor comprises a proximity sensor, an ambient light sensor, a color sensor and/or an image sensor.
4. The light sensing module of claim 1, wherein the first light source comprises a light emitting diode (LED) and/or an infrared LED.
5. The light sensing module of claim 1, further comprising:
a light sensor interface, electrically connected between the control unit and the first light sensor; and
an I/O interface, electrically connected between the control unit and the first light source and the interrupt driver.
6. The light sensing module of claim 5, further comprising:
a synchronization device, electrically connected to the I/O interface, for connecting to another light sensing module in order to synchronize the light sensing module with the other light sensing module.
7. The light sensing module of claim 5, further comprising:
at least one light sensor port, electrically connected to the light sensor interface, for being externally connecting to at least one second light sensor.
8. The light sensing module of claim 7, wherein the processor disposes a type and a number of the second light sensor, and configures the control unit accordingly.
9. The light sensing module of claim 5, further comprising:
at least one light source port, electrically connected to the I/O interface, for externally connecting to at least one second light source.
10. The light sensing module of claim 9, wherein the control unit further disposes a type and a number of the second light source according to configurations of the processor.
11. The light sensing module of claim 1, wherein the light sensing module is realized by a system on a chip (SoC) or an integrated circuit package.
12. A light sensing system, comprising:
a processor; and
at least one light sensing module, each light sensing module comprising:
at least one first light source, for emitting light;
at least one first light sensor, for sensing the light emitted by the first light source, light reflected by an ambient object or ambient light, in order to obtain a sensing result;
a control unit, for performing image detecting and object identification or ambient light sensing by computing according to the sensing result, and generating a computational result; and
at least one interrupt driver, for sending an interrupt signal to the processor in order to notify the processor to receive the computational result;
wherein the processor disposes a type and a number of the first light sensor, and configures the control unit accordingly, so that the control unit performs computation on the sensing result to generate the computational result.
13. The light sensing system of claim 12, wherein the control unit further disposes a type and a number of the first light source according to configurations of the processor.
14. The light sensing system of claim 12, wherein the first light sensor comprises a proximity sensor, an ambient light sensor, a color sensor and/or an image sensor.
15. The light sensing system of claim 12, wherein the first light source comprises a light emitting diode (LED) and/or an infrared LED.
16. The light sensing system of claim 12, wherein the light sensing module further comprises:
a light sensor interface, electrically connected between the control unit and the first light sensor; and
an I/O interface, electrically connected between the control unit and the first light source and the interrupt driver.
17. The light sensing system of claim 16, wherein the light sensing module further comprises:
a synchronization device, electrically connected to the I/O interface, for connecting to another light sensing module among the light sensing module, in order to synchronize the light sensing module with the other light sensing module.
18. The light sensing system of claim 16, wherein the light sensing module further comprises:
at least one light sensor port, electrically connected to the light sensor interface, for externally connecting to at least one second light sensor.
19. The light sensing system of claim 18, wherein the processor disposes a type and a number of the second light sensor, and configures the control unit accordingly.
20. The light sensing system of claim 16, wherein the light sensing module further comprises:
at least one light source port, electrically connected to the I/O interface, for externally connecting to at least one second light source.
21. The light sensing system of claim 20, wherein the control unit further disposes a type and a number of the second light source according to configurations of the processor.
22. The light sensing system of claim 12, wherein the light sensing module is realized by a system on a chip (SoC) or an integrated circuit package.
US14/106,835 2013-04-29 2013-12-15 Light sensing module and system Abandoned US20140321700A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/106,835 US20140321700A1 (en) 2013-04-29 2013-12-15 Light sensing module and system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201361817306P 2013-04-29 2013-04-29
CN201310459599.0A CN104122987A (en) 2013-04-29 2013-09-29 Light sensing module and system
CN201310459599.0 2013-09-29
US14/106,835 US20140321700A1 (en) 2013-04-29 2013-12-15 Light sensing module and system

Publications (1)

Publication Number Publication Date
US20140321700A1 true US20140321700A1 (en) 2014-10-30

Family

ID=51768433

Family Applications (7)

Application Number Title Priority Date Filing Date
US14/106,835 Abandoned US20140321700A1 (en) 2013-04-29 2013-12-15 Light sensing module and system
US14/140,581 Abandoned US20140320407A1 (en) 2013-04-29 2013-12-26 Motion Sensing Device and Motion Sensing System thereof
US14/156,453 Active 2034-10-08 US9677930B2 (en) 2013-04-29 2014-01-16 Method of interrupt control and electronic system using the same
US14/180,294 Expired - Fee Related US9006850B2 (en) 2013-04-29 2014-02-13 Motion sensing device
US14/194,820 Abandoned US20140325109A1 (en) 2013-04-29 2014-03-03 Method of interrupt control and electronic system using the same
US14/264,038 Active 2034-06-20 US9377354B2 (en) 2013-04-29 2014-04-28 Motion sensor and packaging method thereof
US14/262,819 Expired - Fee Related US9297695B2 (en) 2013-04-29 2014-04-28 Motion sensing device and packaging method thereof

Family Applications After (6)

Application Number Title Priority Date Filing Date
US14/140,581 Abandoned US20140320407A1 (en) 2013-04-29 2013-12-26 Motion Sensing Device and Motion Sensing System thereof
US14/156,453 Active 2034-10-08 US9677930B2 (en) 2013-04-29 2014-01-16 Method of interrupt control and electronic system using the same
US14/180,294 Expired - Fee Related US9006850B2 (en) 2013-04-29 2014-02-13 Motion sensing device
US14/194,820 Abandoned US20140325109A1 (en) 2013-04-29 2014-03-03 Method of interrupt control and electronic system using the same
US14/264,038 Active 2034-06-20 US9377354B2 (en) 2013-04-29 2014-04-28 Motion sensor and packaging method thereof
US14/262,819 Expired - Fee Related US9297695B2 (en) 2013-04-29 2014-04-28 Motion sensing device and packaging method thereof

Country Status (2)

Country Link
US (7) US20140321700A1 (en)
CN (7) CN104123179A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170153708A1 (en) * 2015-11-29 2017-06-01 Tusher Chakraborty Secured and Noise-suppressed Multidirectional Gesture Recognition
GB2598666A (en) * 2020-08-19 2022-03-09 Intel Corp I3C pending read with retransmission
US11288365B2 (en) 2017-02-01 2022-03-29 Hewlett-Packard Development Company, L.P. Intrusion detections with ambient light sensors and super input/output circuits
US11322630B2 (en) * 2019-09-23 2022-05-03 Apple Inc. Monolithic infrared transceiver

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104123179A (en) * 2013-04-29 2014-10-29 敦南科技股份有限公司 Method of interrupt control and electronic system using the same
WO2016118463A1 (en) * 2015-01-20 2016-07-28 Performance Indicator, Llc Covert information viewing system and method of covert information processing
CN105094465B (en) * 2015-08-12 2018-02-02 小米科技有限责任公司 Ambient light measurement method and device
US9933601B2 (en) * 2015-12-16 2018-04-03 Intel Corporation Stacked wafer lens and camera
CN105527627A (en) * 2016-01-18 2016-04-27 深圳市金立通信设备有限公司 Laser ranging device, camera device and terminal
TWM520196U (en) * 2016-01-27 2016-04-11 精材科技股份有限公司 A chip scale sensing chip package
WO2017175504A1 (en) * 2016-04-04 2017-10-12 京セラ株式会社 Measurement sensor package and measurement sensor
US20180017741A1 (en) * 2016-07-15 2018-01-18 Advanced Semiconductor Engineering, Inc. Semiconductor package device and method of manufacturing the same
CN108269796B (en) * 2016-12-30 2020-09-01 菱生精密工业股份有限公司 Packaging structure and packaging method of remote sensor
CN107273198B (en) * 2017-06-16 2018-12-18 北京得瑞领新科技有限公司 A kind of interrupt control method, device and the SSD equipment of SSD control chip
CN107706703B (en) * 2017-09-30 2019-07-26 维沃移动通信有限公司 A kind of laser optical path control method, device and mobile terminal
CN108876964A (en) * 2018-07-17 2018-11-23 深圳市鑫华锋科技有限公司 Grasp shoot method and system applied to automobile data recorder
CN112034468A (en) * 2019-05-17 2020-12-04 敦宏科技股份有限公司 Optical proximity sensing device
WO2022071683A1 (en) * 2020-09-29 2022-04-07 Samsung Electronics Co., Ltd. Method and iot controller device for context-based task management in iot network

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110248172A1 (en) * 2010-04-13 2011-10-13 Rueger Timothy T Apparatus with optical functionality and power management and associated methods
US20110254864A1 (en) * 2010-04-15 2011-10-20 Rohm Co., Ltd. Calculation device, movement detection device, and electronic instrument
US20140118257A1 (en) * 2012-10-29 2014-05-01 Amazon Technologies, Inc. Gesture detection systems

Family Cites Families (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4866571A (en) * 1982-06-21 1989-09-12 Olin Corporation Semiconductor package
US5317149A (en) 1992-11-12 1994-05-31 Hewlett-Packard Company Optical encoder with encapsulated electrooptics
DE10010461A1 (en) 2000-03-03 2001-09-13 Infineon Technologies Ag Process for packing electronic components comprises injection molding components into ceramic substrate having conducting pathways, contact connection surfaces and pressure contacts
US7348957B2 (en) * 2003-02-14 2008-03-25 Intel Corporation Real-time dynamic design of liquid crystal display (LCD) panel power management through brightness control
CN1525206A (en) * 2003-02-26 2004-09-01 台达电子工业股份有限公司 Lighting system of projector
JP4016275B2 (en) * 2003-06-25 2007-12-05 富士電機デバイステクノロジー株式会社 Ranging device
JP2006038572A (en) 2004-07-26 2006-02-09 Sharp Corp Reflection type encoder and electronic apparatus using this reflection type encoder
US7103693B2 (en) * 2004-09-30 2006-09-05 International Business Machines Corporation Method for applying interrupt coalescing to incoming messages based on message length
US7617980B2 (en) 2005-04-25 2009-11-17 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Integrated optical module for reflectance sensing
CN100447748C (en) * 2005-08-31 2008-12-31 上海海尔集成电路有限公司 Interrupt system realizing method
CN101009779B (en) * 2006-01-24 2010-06-16 采钰科技股份有限公司 Image induction module for high-precision imaging control
CN101039381B (en) * 2006-03-17 2011-03-30 鸿富锦精密工业（深圳）有限公司 Image sensing module and method for manufacturing the same
TWM298226U (en) 2006-04-14 2006-09-21 Lite On Semiconductor Corp Encapsulation structure of optically movement detection
CN101063742A (en) * 2006-04-27 2007-10-31 上海乐金广电电子有限公司 Image optical pick-up device lens
US7966263B2 (en) * 2006-05-04 2011-06-21 First Data Corporation Wireless phone RF presentation instrument with sensor control
US8094129B2 (en) * 2006-11-27 2012-01-10 Microsoft Corporation Touch sensing using shadow and reflective modes
US7842957B2 (en) 2007-03-08 2010-11-30 Avago Technologies Ecbu Ip (Singapore) Pte, Ltd. Optical transceiver with reduced height
DE102007023893A1 (en) * 2007-05-23 2008-11-27 Robert Bosch Gmbh Interrupt controller, particularly for application-specific integrated circuit, has comparator to compare input signals with stored threshold values
TW200907396A (en) 2007-08-03 2009-02-16 Largan Precision Co Ltd Multilayer film vacuum evaporation method for a plastic optic assemble and optical image capture fro the same
US8148808B2 (en) * 2007-08-13 2012-04-03 Lv Sensors, Inc. Partitioning of electronic packages
US8432372B2 (en) * 2007-11-30 2013-04-30 Microsoft Corporation User input using proximity sensing
CN101953154B (en) * 2007-12-17 2016-09-07 豪威科技有限公司 Have an integrated flash lamp can reflow camera model
CN101509787B (en) 2008-02-14 2011-06-08 敦南科技股份有限公司 Electro-magnetic wave sensing apparatus
CN101539651A (en) * 2008-03-21 2009-09-23 富港电子（东莞）有限公司 Camera module and manufacturing method
KR20090108233A (en) * 2008-04-11 2009-10-15 삼성전자주식회사 Method of fabricating a camera module, the camera module manufactured thereby and electronic system including the camera module
TWI398934B (en) 2008-04-15 2013-06-11 Analog Devices Inc Wafer level csp sensor
JP5031895B2 (en) * 2008-05-12 2012-09-26 パイオニア株式会社 Self-luminous sensor device and manufacturing method thereof
US8971565B2 (en) 2008-05-29 2015-03-03 Hie-D Technologies, Llc Human interface electronic device
US8068641B1 (en) 2008-06-19 2011-11-29 Qualcomm Incorporated Interaction interface for controlling an application
KR20100081052A (en) * 2009-01-05 2010-07-14 삼성전자주식회사 Detecting apparatus using a proximity sensor and mobile device having the same
JP5283078B2 (en) * 2009-01-13 2013-09-04 セイコーインスツル株式会社 Detection circuit and sensor device
TWM363080U (en) 2009-01-21 2009-08-11 Pixart Imaging Inc Packaging structure
TWI385880B (en) * 2009-05-25 2013-02-11 Pixart Imaging Inc Connector of connecting photonic sensor and substrate and method for fabricating photonic sensor
US7763841B1 (en) 2009-05-27 2010-07-27 Microsoft Corporation Optical component for a depth sensor
US8957380B2 (en) 2009-06-30 2015-02-17 Avago Technologies General Ip (Singapore) Pte. Ltd. Infrared attenuating or blocking layer in optical proximity sensor
US8629389B2 (en) * 2009-07-29 2014-01-14 Geoffrey Louis Barrows Low profile camera and vision sensor
US8097852B2 (en) 2009-09-10 2012-01-17 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Multiple transfer molded optical proximity sensor and corresponding method
TWI396113B (en) 2009-09-10 2013-05-11 Pegatron Corp Optical control device and method thereof
KR101291319B1 (en) * 2009-09-18 2013-07-30 한국전자통신연구원 apparatus for generating/detecting THz wave and manufacturing method of the same
US8304850B2 (en) 2009-12-22 2012-11-06 Texas Instruments Incorporated Integrated infrared sensors with optical elements, and methods
CN102194835A (en) * 2010-03-01 2011-09-21 奇景光电股份有限公司 Wafer-level camera lens module, manufacturing method thereof and wafer-level camera
US20110298708A1 (en) 2010-06-07 2011-12-08 Microsoft Corporation Virtual Touch Interface
CN201845786U (en) * 2010-07-22 2011-05-25 原相科技股份有限公司 Sensing device and image sensing module thereof
KR101691616B1 (en) * 2010-07-27 2017-01-02 삼성디스플레이 주식회사 Display panel and method of manufacturing the same
US8692366B2 (en) 2010-09-30 2014-04-08 Analog Device, Inc. Apparatus and method for microelectromechanical systems device packaging
CN201853708U (en) 2010-10-22 2011-06-01 菱光科技股份有限公司 Image sensing device
CN102055844B (en) 2010-11-15 2013-05-15 惠州Tcl移动通信有限公司 Method for realizing camera shutter function by means of gesture recognition and handset device
US8604436B1 (en) 2011-03-24 2013-12-10 Maxim Integrated Products, Inc. Proximity sensor device
TWI416473B (en) * 2011-04-08 2013-11-21 Quanta Comp Inc Multi-mode display device and power-saving method of the same
US9335183B2 (en) * 2011-04-12 2016-05-10 International Business Machines Corporation Method for reliably operating a sensor
TWI472987B (en) * 2011-04-15 2015-02-11 Pixart Imaging Inc Optical touchpad and portable electronic device
US8713235B2 (en) * 2011-05-02 2014-04-29 Fairchild Semiconductor Corporation Low latency interrupt collector
US9075182B2 (en) * 2011-06-03 2015-07-07 VisEra Technology Company Limited Camera module and spacer of a lens structure in the camera module
JP5794002B2 (en) * 2011-07-07 2015-10-14 ソニー株式会社 Solid-state imaging device, electronic equipment
US8619267B2 (en) 2011-07-08 2013-12-31 Avago Technologies General Ip (Singapore) Pte. Ltd. Proximity sensor with motion detection
JP5794020B2 (en) * 2011-07-27 2015-10-14 ソニー株式会社 Solid-state imaging device
TW201310102A (en) 2011-08-17 2013-03-01 Pixart Imaging Inc Lens module and manufacture method thereof
CN102999225A (en) * 2011-09-14 2013-03-27 原相科技股份有限公司 Optical touch system with track detection function and optical touch method
FR2980599B1 (en) 2011-09-27 2014-05-09 Isorg INTERACTIVE PRINTED SURFACE
WO2013056157A1 (en) * 2011-10-13 2013-04-18 Autodesk, Inc. Proximity-aware multi-touch tabletop
CN103066080B (en) * 2011-10-21 2016-02-03 奇景光电股份有限公司 The manufacture method of light sensing module
KR102177372B1 (en) 2011-12-22 2020-11-12 헵타곤 마이크로 옵틱스 피티이. 리미티드 Opto-electronic modules, in particular flash modules, and method for manufacturing the same
US8735795B2 (en) * 2012-01-20 2014-05-27 Omnivision Technologies, Inc. Image sensor with integrated ambient light detection
TWI453923B (en) 2012-06-22 2014-09-21 Txc Corp Light sensing chip package structure
US20140014839A1 (en) * 2012-07-11 2014-01-16 Tom Chang Sensor design based on light sensing
CN104123179A (en) * 2013-04-29 2014-10-29 敦南科技股份有限公司 Method of interrupt control and electronic system using the same
TWI527166B (en) 2013-07-25 2016-03-21 The package structure of the optical module

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110248172A1 (en) * 2010-04-13 2011-10-13 Rueger Timothy T Apparatus with optical functionality and power management and associated methods
US20110254864A1 (en) * 2010-04-15 2011-10-20 Rohm Co., Ltd. Calculation device, movement detection device, and electronic instrument
US20140118257A1 (en) * 2012-10-29 2014-05-01 Amazon Technologies, Inc. Gesture detection systems

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170153708A1 (en) * 2015-11-29 2017-06-01 Tusher Chakraborty Secured and Noise-suppressed Multidirectional Gesture Recognition
US11288365B2 (en) 2017-02-01 2022-03-29 Hewlett-Packard Development Company, L.P. Intrusion detections with ambient light sensors and super input/output circuits
US11322630B2 (en) * 2019-09-23 2022-05-03 Apple Inc. Monolithic infrared transceiver
GB2598666A (en) * 2020-08-19 2022-03-09 Intel Corp I3C pending read with retransmission
GB2598666B (en) * 2020-08-19 2022-11-02 Intel Corp I3C pending read with retransmission
US12013806B2 (en) 2020-08-19 2024-06-18 Intel Corporation I3C pending read with retransmission

Also Published As

Publication number Publication date
US20140320407A1 (en) 2014-10-30
CN104122990A (en) 2014-10-29
CN104122988B (en) 2017-04-12
CN104122991A (en) 2014-10-29
US9297695B2 (en) 2016-03-29
US9677930B2 (en) 2017-06-13
CN104123180A (en) 2014-10-29
CN104122989B (en) 2017-06-30
CN104123179A (en) 2014-10-29
CN104122987A (en) 2014-10-29
CN104122988A (en) 2014-10-29
US20140319348A1 (en) 2014-10-30
US20140319328A1 (en) 2014-10-30
US20140325108A1 (en) 2014-10-30
CN104122989A (en) 2014-10-29
US9377354B2 (en) 2016-06-28
US20140325109A1 (en) 2014-10-30
US20140319636A1 (en) 2014-10-30
US9006850B2 (en) 2015-04-14

Similar Documents

Publication Publication Date Title
US20140321700A1 (en) Light sensing module and system
US11455044B2 (en) Motion detection system having two motion detecting sub-system
US11249554B2 (en) Method and apparatus for selecting between multiple gesture recognition systems
Berman et al. Sensors for gesture recognition systems
US9552073B2 (en) Electronic device
KR102560800B1 (en) Electronic device for recognizing fingerprint using display
EP2898399B1 (en) Display integrated camera array
KR102421141B1 (en) Apparatus and method for storing event signal and image and operating method of vision sensor for transmitting event signal to the apparatus
US20130229387A1 (en) Optical touch device, passive touch control system, and input detection method
JP2016038889A (en) Extended reality followed by motion sensing
CN112789583A (en) Display device and control method thereof
US9285887B2 (en) Gesture recognition system and gesture recognition method thereof
JP6398870B2 (en) Wearable electronic device and gesture detection method for wearable electronic device
JP7123163B6 (en) Depth processor and 3D image equipment
US9313391B1 (en) Camera interfaces for electronic devices
US9760177B1 (en) Color maps for object tracking
US9507433B1 (en) System and method for discerning complex gestures using an array of optical sensors
CN108369465A (en) Touch panel, the instruction input method of touch panel and display system
US20130229349A1 (en) Optical touch input by gesture detection from varying images
EP2799955A2 (en) Light sensing module and system
US20140368463A1 (en) System and method for sensor and image processing
TW201421295A (en) Receiver device and operation method thereof
US20200310551A1 (en) Motion detecting system having multiple sensors
CN115944906A (en) VR handle, VR glasses, pose information determination method and device
US20130285905A1 (en) Three-dimensional pointing device and system

Legal Events

Date Code Title Description
AS Assignment

Owner name: LITE-ON SEMICONDUCTOR CORPORATION, TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ZHAN, PENG-HAN;REEL/FRAME:031979/0873

Effective date: 20131204

AS Assignment

Owner name: DYNA IMAGE CORPORATION, TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LITE-ON SEMICONDUCTOR CORPORATION;REEL/FRAME:034716/0771

Effective date: 20150114

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION