Abstract: An apparatus for measuring a radiation pattern of an active antenna arrangement is provided, where the active antenna arrangement includes one or more radios having dedicated antenna elements in communication with each other. The apparatus has a common module external to the active antenna arrangement and a calibration radio, which is also external to the active antenna arrangement and coupled to the common module. The common module includes a transmit/receive unit and interfacing means for interfacing the common module with the active antenna arrangement, with the calibration radio and with a network node. The common module further includes a measurement device for measuring signals received from the active antenna arrangement.

Abstract: In an example embodiment, an airborne radio frequency (RF) antenna device can comprise: a radiating portion; a waveguide portion connected to the radiating portion; a desiccant airflow channel; and an internal air volume located within the RF antenna device and associated with the desiccant airflow channel. The desiccant airflow channel can be integral with the RF antenna device. The internal air volume can be vented to the environment outside of the RF antenna device through the desiccant airflow channel.

Abstract: An antenna assembly including: an insulating substrate; a conductive coating covering a surface of the substrate at least section-wise and serving at least section-wise as a planar antenna receiving electromagnetic waves; a first coupling electrode electrically coupled to the conductive coating extracting useful signals from the planar antenna; a source of interference disposed such that interfering signals can be received by the planar antenna; an electrically conductive ground; and a second coupling electrode electrically coupled to the conductive coating coupling out interfering signals received by the planar antenna from the planar antenna. The second coupling electrode includes a first coupling surface and the conductive structure includes a second coupling surface capacitively coupled to the first coupling surface, the two coupling surfaces configured to selectively allow passage of a frequency range corresponding to the interfering signals to be extracted from the planar antenna.

Abstract: Both ends of a feeder and both ends of a reflector of an antenna device are connected using a pair of diodes. When the diodes are turned on, a loop antenna is formed which loops the feeder, the diode, the reflector, a capacitor, and the diode, and the antenna device operates as the loop antenna. When the diodes are turned off, the antenna device operates as a Yagi-Uda antenna which is formed of the feeder, the reflector, and a wave guide.

Abstract: An exemplary embodiment of an antenna arrangement generally includes a board including a ground plane, a radiating element, and a first parasitic element. The radiating element is dimensioned for providing resonance at a first frequency. The radiating element is arranged at a first edge of the board. The first parasitic element is arranged at a second edge of the board opposite the first edge. The first parasitic element is dimensioned for providing resonance at another frequency near the first frequency for providing coverage of a first frequency band. A major extension of the first parasitic element is along the second edge of the board.

Abstract: An antenna system is provided for use in wireless communication, the antenna system is contained in a modular structure. The antenna system includes a plurality of co-located antennas, including at least one active modal antenna, each of the antennas being adapted for operation at a distinct frequency band. The antenna system further includes an active tuning module for tuning a frequency response of the co-located antennas.

Abstract: In a typical system a combination of filters (BAW, SAW, etc) and an antenna are configured to achieve frequency filtering effect and efficient transmission and reception of communication signals. Wireless communication systems require specific bandwidth and out-of-band rejection; typically this metric is characterized in frequency roll-off in units of dB/MHz. This number is distributed between the antenna and filter, with the antenna contributing little to date to the filtering effect. Loss and cost penalties are incurred when multi-mode systems are designed which require additional rejection from the filter elements. Described here is a method of designing antennas to reduce the amount of rejection and complexity from the filter system. A superposition of a symmetrical frequency response from the antenna structure coupled with a non-symmetrical frequency response from a counterpoise structure generates increased rejection of out-of-band components.

Abstract: Wireless devices, and particularly mobile devices such as cellphones, PDAs, computers, navigation devices, etc., as well as other devices which transmit or receive data or other signals at multiple frequency bands utilize at least one antenna to transmit and receive and a plurality of different bands (e.g., GSM cellular communication band; Bluetooth short range communication band; ultrawideband (UWB) communications, etc.). These wireless devices can simultaneously transmit or receive at a plurality of different bands, or simultaneously transmit and receive at different bands. The wireless devices have the ability to use a single physical structure (e.g., an antenna) for transmission and reception of many different bands. The antenna can be either actively tuned or passively tuned using one or more elements.

Abstract: A coplanar waveguide (CPW) square-ring slot antenna for use in wireless communication systems is miniaturized and reconfigurable by the integration of ferroelectric (FE) BST (barium strontium titanate) thin film varactors therein. The slot antenna device includes a sapphire substrate, top and bottom metal layers, and a thin ferroelectric BST film layer, where the FE BST varactors are integrated at the back edge of the antenna on the top metal layer.

Abstract: An antenna apparatus and method includes an orthogonal slot antenna which overcomes the limitations associated with RF choke between the adjacent slots through various feed techniques. A cavity backed cross-slot antenna includes a horizontal slot antenna, a vertical slot antenna sharing a center portion with the horizontal slot antenna, a first feed for the horizontal slot antenna, and a second feed for the vertical slot antenna, the first feed and the second feed provided to the shared center portion. Another cavity backed cross-slot antenna includes a horizontal slot antenna, a vertical slot antenna, the horizontal slot antenna and the vertical slot antenna share a center portion therebetween, a first feed feeding both halves of the horizontal slot antenna, and a second feed feeding both halves of the vertical slot antenna.

Abstract: The invention provides a multi-band antenna comprising a planar substrate which in use is intended for vertical mounting, and has a bottom edge and a top edge. A conductor pattern is printed on one side of the substrate with three slots. A first slot is a U or J shape facing downwardly and a second is a U or J shape facing upwardly. A third slot extends in the vertical direction and is open at the top. A first antenna feed is coupled to a horizontal track of the second slot and a second antenna feed is coupled to the third slot. The three slots together provide multi-band performance in three bands.

Abstract: A penta-band internal antenna and a mobile communication terminal may include: a first high-frequency branch, a second high-frequency branch, and a low-frequency branch of an antenna radiating element, and a first slotted hole and a second slotted hole arranged on a printed circuit board. The first slotted hole may be arranged along a direction substantially perpendicular to the current flow direction of the printed circuit board. The open-circuit end of the low-frequency branch may be fitted into the first slotted hole and the open-circuit end of the second high-frequency branch may be fitted into the second slotted hole.

Abstract: An antenna device includes a housing having a plurality of printed circuit board (PCB) panels connected together with folded joints therebetween to define a polyhedral shape having a first open end. Each of the PCB panels includes a dielectric substrate and an electrically conductive layer thereon inside of the housing. Wireless communication circuitry is mounted on at least one of the plurality of PCB panels outside the housing, and an antenna feed is connected to the wireless communication circuitry adjacent a second end opposite the first open end of the housing.

Abstract: In an example embodiment, an azimuth combiner comprises: a septum layer comprising a plurality of septum dividers; first and second housing layers attached to first and second sides of the septum layer; a linear array of ports on a first end of the combiner; wherein the first and second housing layers each comprise waveguide H-plane T-junctions; wherein the waveguide T-junctions can be configured to perform power dividing/combining; and wherein the septum layer evenly bisects each port of the linear array of ports. A stack of such azimuth combiners can form a two dimensional planar array of ports to which can be added a horn aperture layer, and a grid layer, to form a dual-polarized, dual-BFN, dual-band antenna array.

Abstract: An antenna structure includes a circuit board and at least one antenna circuit. The circuit board includes a ground area and an antenna area. The antenna area is substantially rectangular-shaped and arranged between the ground area and the periphery of the circuit board. The antenna circuit is formed within the antenna area and includes a feeding segment, a border segment and at least one ground segment. The feeding segment is connected to the border segment and the distance from the border segment to the periphery of the circuit board ranges from 0 to 3 millimeters; a substantially 90° bent-structure is formed within the border segment. One end portion of the ground segment is connected to the ground area. Thus an antenna structure which enables the antenna circuit to be formed within the remaining space on the periphery of the circuit board is provided.

Abstract: A non-feeding element is provided with a proximity-providing gap from a feeding element, and a resonant state is generated there by capacitive coupling. The non-feeding element resonates at a frequency different from a resonant frequency of the feeding element. The feeding element and the non-feeding element have alongside-ground-terminal extending portions spaced from an edge surface at one end of a ground surface formed on the circuit board and to extend in a direction along the edge surface at the one end of the ground surface. The feeding element and/or the non-feeding element is formed three-dimensionally with a plurality of bending portions so that at least parts of the alongside-ground-terminal extending portion of the feeding element and the ground-terminal extending portion of the non-feeding element have substantially the same amount of spacing from the ground surface.

Abstract: Low-profile antenna systems are provided including a ground plane; an upper antenna element parallel to and spaced apart from the ground plane; at least one vertical plate configured to vertically connect the upper antenna element and the ground plane; first and second metallic wings each connected at one end to respective sides of the at least one vertical plate and spaced apart from both the ground plane and the upper antenna element; an electrically floating plate on a same plane as the upper antenna element and spaced apart from the upper antenna element to provide a gap therebetween; and a metallic feed plate parallel to and between the upper antenna element and the ground plane and extending beneath the gap between the electrically floating plate and the upper antenna element. Related wireless communications devices are also provided.

Abstract: A three-feed, low-profile antenna offers high port-to-port isolation and multiband operation. Applications for the antenna include, but are not limited to, USB dongle, netbook, notebook, tablet, laptop, and set-top box applications requiring 3-feed MIMO or diversity protocols.

Abstract: A mobile terminal includes a terminal body, a multi-layered circuit board mounted onto the terminal body and having a first ground and a second ground laminated on each other, a first antenna device connected to the first ground, and a second antenna device connected to the second ground, whereby antennas can be implemented more efficiently within a small space with maintaining performance of the antennas, resulting in size reduction of the mobile terminal.

Abstract: A mixed antenna system driving method for driving a mixed antenna consisting of a control IC, a sensor module and an antenna is disclosed. The control IC switches the antenna to a capacitive proximity sensor of the sensor module for enabling the capacitive proximity sensor to sense the approaching of an external object by means of the antenna, and then switches the antenna away from the capacitive proximity sensor to an electromagnetic wave generating circuit of the sensor module for enabling the electromagnetic wave generating circuit to perform an induction operation by means of the antenna after received a sensed signal from the capacitive proximity sensor, and switches the antenna back to the capacitive proximity sensor after the induction operation of the electromagnetic wave generating circuit.

Abstract: A passive intermodulation modulation reducing structure for a multicarrier reflector system, including a plurality of flexible reflector gores, each gore having a thin layer of conductive metal, a first layer of dielectric material laminated to one face of the conductive metal, and a second layer of dielectric material laminated to an opposite face of the conductive metal. Capacitive coupling joins the reflector's RF components. The structure can be a deployable parabolic reflector for a satellite antenna.

Abstract: An electronic device supporting multi-panel interface displaying is provided. The electronic device has: a processing unit configured to provide an operating interface, wherein the operating interface has a plurality of interface components; and a multi-device group communication unit configured to perform a device coordination process between the electronic device and at least one other electronic device, wherein the at least one other electronic device has a corresponding processing unit and a corresponding multi-device group communication unit, and the processing unit adjusts at least one of the interface components displayed on the electronic device according to a number of devices in the device coordination process between the electronic device and the at least one other electronic device.

Abstract: An information acquiring unit acquires from a server the same type of information to be shown correspondingly in vehicle-mounted apparatuses with respect to one content, and information display units cause their displays to show the information to be shown correspondingly in the apparatuses from the same type of information acquired by the information acquiring unit. An operation for a content acquisition request by one of the plurality of vehicle-mounted apparatuses may only be required for showing the same type of information in synchronization on displays of the vehicle-mounted apparatuses, without separate operations for a content acquisition request in the vehicle-mounted apparatuses.

Abstract: An apparatus performs a method to control displays in a mobile terminal including a first display and a second display positioned over the first display. In the method, first information whose output via the first display is allowed and second information whose output via the second display is allowed are identified using output information. The first information is output via the first display. The second information is output via the second display.

Abstract: A Head Up Display (HUD), comprising: an image display unit, to generate input images; a virtual image generation unit, to receive said input images and generate at least a virtual image; a rotation mechanism, used to make said virtual image generation unit to change its projection angle, to project virtual images to a plurality of transmission mirrors; and a plurality of transmission mirrors, used to receive said virtual images and reflect them into a large area virtual image. Advantage of said HUD is that, size of lens and mirrors is reduced, so said HUD is miniaturized, while realizing large area image display, such that information frame of vehicle match that of outside view, hereby solving problems of single optical route display device of the prior art, that is only capable of displaying a small area image rather than a large area image.

Abstract: The invention relates to a method and a presentation device for presenting information about the angle to a target to a wearer (2) by means of a display (1) worn by the wearer tracking movement of the wearer's head, the wearer's head movements being detected and the angle of the wearer's head relative to a target being indicated on the display. According to the invention, movements of the wearer's (2) head are detected independently of the target, the position of the wearer is determined locally, the position of the target is designated and the display is controlled on the basis of local information about the wearer's head movement, the wearer's position and the position designated as the target in order to indicate the angle of the wearer's head relative to the target.

Abstract: Provided are a wearable personal digital eyeglass device and a method for interfacing a user with a wearable personal digital eyeglass device. The wearable personal digital eyeglass device may comprise a right earpiece and a left earpiece connected by a cable, a nosepiece portion consisting of a right nosepiece and a left nosepiece connected to each other by a connector, a display, a transceiver, an earphone, and a sensor. The right nosepiece may be connected to the right earpiece, and the left nosepiece may be connected to the left earpiece of the wearable personal digital eyeglass device. The transceiver may be configured to receive data from a control device, receive one or more commands of the user, and transmit the data and the one or more commands to the control device.

Abstract: Embodiments relate to a defect detecting method of a line and a demultiplexer, a defect detecting device, and a display panel including the defect detecting device. A demultiplexer may connect a plurality of data lines to a plurality of corresponding lines. The defect detecting device includes DC lines supplied with respective DC voltages, first switches connected to the DC lines and configured to transmit the respective DC voltages to the corresponding first data lines among a plurality of data lines according to a first gate signal, and second switches connected to the first to third DC lines and configured to transmit one of the respective DC voltages to corresponding second data lines among a plurality of data lines according to a second gate signal.

Abstract: A shift register includes shift register units, in which at least one shift register unit is coupled to a forestage shift register unit and a post-stage shift register unit, where the at least one shift register unit includes a signal input circuit, a signal output circuit, a pull down circuit and a switching circuit. The signal input circuit electrically coupled to the forestage shift register unit can receive a logic signal from the forestage shift register. The signal output circuit is electrically coupled to the signal input circuit via a control signal terminal and is electrically coupled to the post-stage shift register unit. The signal output to circuit can receive a first clock signal. The pull down circuit is electrically coupled to or electrically isolated from the control signal terminal through the switching circuit.

Abstract: An organic light emitting diode (OLED) display device and a method of driving the same are provided. A time point at which each of transistors is turned on is controlled without using an additional transistor so that a node connected to a source electrode of a driver transistor can be floated, and a node connected to a gate electrode of the driver transistor can be initialized to an initialization voltage level. Thus, initialization characteristics can be improved to enhance degradation of response characteristics and luminance, and a threshold voltage of the driver transistor and occurrence of a ripple at a high-potential voltage terminal can be compensated.

Abstract: An electro-wetting display substrate includes a base substrate including a gate line extending in a first direction and a data line extending in a second direction, where the first direction is different from the second direction, a switching element electrically connected to the gate line and the data line, a pixel electrode electrically connected to the switching element, a notch electrode disposed adjacent to the switching element and overlapping the pixel electrode, and a water-repellent layer disposed over the pixel electrode.

Abstract: A gate driving circuit is provided which includes a plurality of stages cascade-connected with each other and outputting a plurality of gate signals. An n-th (n is a natural number) stage includes a gate output part, a first node control part and a carry part. The gate output part includes a first transistor. The first transistor outputs a high voltage of a clock signal to a high voltage of an n-th gate signal in response to a high voltage of a control node. The first node control part is connected to the control node to control a signal of the control node and includes at least one transistor having a channel longer than the channel length of the first transistor. The carry part outputs the high voltage of the clock signal to an n-th carry signal in response to the signal of the control node.

Abstract: The present invention relates to a pixel structure, an array substrate and a liquid crystal display. A pixel structure, comprising a plurality of pixel regions, wherein each pixel region comprises a pixel electrode and at least one pair of first thin-film transistor and second thin-film transistor; the first thin-film transistor and the second thin-film transistor in each pair are symmetrically arranged, and the drain electrodes of the first thin-film transistor and the second thin-film transistor are electrically connected with the pixel electrode. Each pixel structure of the liquid crystal display comprises a first thin-film transistor and a second thin-film transistor. Since the first thin-film transistor and the second thin-film transistor are symmetrically arranged, the total parasitic capacitance of each pixel structure would not be changed due to the poor accuracy of an exposure machine and a manufacturing process in actual manufacture.

Abstract: A liquid crystal display generates k DEMUX control signals for controlling the turn-on time of the DEMUX switches so as not to overlap with each other, and generates at least some of the DEMUX control signals every 2 horizontal periods, and makes 1 pulse sustaining period of the DEMUX control signals generated every 2 horizontal periods to overlap with a tail portion of the preceding horizontal period and a front portion of the subsequent horizontal period, among two neighboring horizontal periods.

Abstract: The invention discloses a driving circuit, a liquid crystal panel, a liquid crystal display (LCD), and a driving method. A data driving circuit of a liquid crystal panel comprises a plurality of data driving chips. A plurality of first sub-voltage dividing circuits and second controllable sub-voltage dividing circuits are connected in series between said data driving chips and the common electrode of the liquid crystal panel, and each first sub-voltage dividing circuit and each second sub-voltage dividing circuit are connected by a data line of the liquid crystal panel. In the invention, two control voltages can be obtained only by controlling the second sub-voltage dividing circuit, which is only one distortion correction (Gamma) circuit used, thereby simplifying the circuit structure, saving PCB space, and reducing the cost.

Abstract: Systems, methods, and devices are provided for detecting short circuits in a backlight assembly without a resistor-based current sensor. For example, an electronic display according to the present disclosure may include a display panel and a backlight assembly to illuminate the display panel. The backlight assembly may drive a backlight element to illuminate the display panel and may include backlight short-circuit detection circuitry. The backlight short-circuit protection circuitry may detect a feedback voltage associated with the backlight element and determine when a short circuit has occurred based at least in part on the feedback voltage.

Abstract: An electrophoretic display device includes: a first substrate having a plurality of pixels formed in a plurality of vertical pixel rows and a plurality of horizontal pixel rows; a plurality of data lines formed at every vertical pixel row of the first substrate; a thin film transistor (TFT) formed at each pixel of the first substrate and including a source electrode, a drain electrode, an organic semiconductor layer, and a gate electrode; a passivation layer formed on the TFTs and the data lines of the first substrate and including a first contact hole exposing the drain electrode of the TFT and a second contact hole exposing the gate electrode of the TFT; a pixel electrode formed on the passivation layer at each pixel of the first substrate and connected with the drain electrode of the TFT via the first contact hole of the passivation layer; a plurality of gate lines formed on the passivation layer at every horizontal pixel row of the first substrate and connected with the gate electrode of the TFT via the s

Abstract: Embodiments distinguish among user interface elements based on head orientation. Coordinates representing a set of at least three reference points in an image of a subject gazing on the user interface elements are received by a computing device. The set includes a first reference point and a second reference point located on opposite sides of a third reference point. A first distance between the first reference point and the third reference point is determined. A second distance between the second reference point and the third reference point is determined. The computing device compares the first distance to the second distance to calculate a head orientation value. The computing device selects at least one of the user interface elements based on the head orientation value. In some embodiments, the head orientation value enables the user to navigate a user interface menu or control a character in a game.

Abstract: In embodiments of portable device pairing with a tracking system, a pairing system includes a portable device that generates device acceleration gesture data responsive to a series of motion gestures of the portable device. The pairing system also includes a tracking system that is configured for pairing with the portable device. The tracking system recognizes the series of motion gestures of the portable device and generates tracked object position gesture data. A pairing service can then determine that the series of motion gestures of the portable device corresponds to the series of motion gestures recognized by the tracking system, and communicate a pairing match notification to both the tracking system and the portable device to establish the pairing.

Abstract: A gesture detecting method includes steps of defining an initial reference point in a screen of an electronic device; dividing the screen into N areas radially according to the initial reference point; when a gesture corresponding object moves in the screen and a trajectory of the gesture corresponding object crosses M of the N areas, selecting a sample point from each of the M areas so as to obtain M sample points; and calculating a center and a radius of the trajectory of the gesture corresponding object according to P of the M sample points so as to determine a circular or curved trajectory input. Accordingly, the invention is capable of providing a center, a radius, a direction and an arc angle corresponding to a gesture in real-time without establishing a gesture model.

Abstract: A gesture input method is provided. The method is used in a gesture input system to control a content of a display. The method includes: capturing, by a first image capturing device, a hand of a user and generating a first grayscale image; capturing, by a second image capturing device, the hand of the user and generating a second grayscale image; detecting, by an object detection unit, the first and second grayscale images to obtain a first imaging position and a second imaging position corresponding to the first and second grayscale images, respectively; calculating, by a triangulation unit, a three-dimensional space coordinate of the hand according to the first imaging position and the second imaging position; recording, by a memory unit, a motion track of the hand formed by the three-dimensional space coordinate; and recognizing, by a gesture determining unit, the motion track and generating a gesture command.

Abstract: The embodiments describe both the interpreting and modifying the interpretation of an input event to an electronic device having limited user input resources. The input event interpretation can be based in part on a connection state of the device. In some cases, the interpretation of the input event can also be based upon an indication of a current operating state of the device in addition to or exclusive of the connection state. Furthermore, in some embodiments, an operating state of the portable electronic device can be resolved based in part on the connection state of the portable electronic device.

Abstract: A medical device including an operation determiner for determining operations to be performed by the medical device in response to a gesture of the device with respect to the medical device, and an operation data accessor for accessing operation data for the operation performed by the medical device.

Abstract: An object of the present invention is to provide a novel stereoscopic display device that allows the viewer to properly view a stereoscopic image. The device includes: a display configured to display an image for stereoscopic viewing; an imaging unit configured to image a face of a viewer; a position information acquisition unit configured to acquire position information regarding the face imaged by the imaging unit; an operation unit configured to be operated by the viewer when the viewer is in an optimal position from where the image for stereoscopic viewing displayed on the display can be properly viewed as a stereoscopic image; an optimal position information storage unit configured to store position information provided when the operation unit is operated as position information on the optimal position; and a positional relationship notification unit configured to notify the viewer of the positional relationship between the current position of the viewer and the optimal position.

Abstract: A method and apparatus for performing wireless display control and an associated computer program product are provided, where the method is applied to an electronic device.

Abstract: The present invention discloses a hybrid pointing device including an optical navigation module and a pointing module. The optical navigation module is configured to replace the conventional buttons of a convention pointing device, such as an optical mouse or a trackball mouse. The optical navigation module is configured to sense gestures of at least one object operated by a user to activate commands associated with particular programs running on the host. Since the optical navigation module is only configured to sense gestures of the object but not the movement of the hybrid pointing device relative to a surface, the resolution thereof is aimed to be sufficiently high enough for sensing gestures and no need to be relatively high.

Abstract: A mouse device includes a shell, a circuit board, an electrical switch, a button and a push block. The circuit board is disposed within the shell, and the electrical switch is electrically disposed on the electrical board. The button is disposed on the shell and faces the electrical switch on the electrical board and is configured to move with respect to the shell and optionally trigger the electrical switch. The push block is disposed on the button facing the electrical switch, wherein hardness of the push block is substantially greater than that of the button. While the button triggers the electrical switch, the push block presses the electrical switch, thereby preventing an unintentional contact of the button with the electrical switch.

Abstract: A system for switching a computer mouse operation mode includes a mouse and a computer, wherein the mouse comprises a first button, a second button, a control unit, and a delivery unit. The control unit determines whether a pressing time of a button reaches a predetermined time, and sets the value of a flag to different values according the pressed button. The computer running an operation system comprises a receiving unit configured to receive the flag output from the delivery unit. The drive unit sets the mouse operation mode according the value of the flag.

Abstract: A mouse includes a main body, a scroll-wheel ring, an embedded shaft, a ball, and an elastic member. The scroll-wheel ring is rotatably disposed in the main body and has a ring-shaped gear portion. The ring-shaped gear portion has a plurality of gear teeth and tooth spaces alternately formed thereon. The embedded shaft is fixed to the main body and embedded into the scroll-wheel ring. The embedded shaft has a containing space opening toward the ring-shaped gear portion. The ball is disposed in the containing space and contacts the ring-shaped gear portion. The elastic member is disposed in the containing space. Two ends of the elastic member abut against an inner wall of the containing space and the ball respectively. When the scroll-wheel ring is rotated, the gear teeth and the elastic member drive the ball to switch between different tooth spaces with rotation of the scroll-wheel ring.

Abstract: A system and method for measuring linear and angular displacement of a moving object, such as an autonomous moving object. In one embodiment, the system comprises at least one optical mouse sensor mounted adjacent to and at a predetermined distance from a surface of the autonomous moving object or a working surface. A processor on the autonomous moving object is operatively coupled to the optical mouse sensor. The optical mouse sensor outputs linear and angular displacement values to the processor during movement of the autonomous moving object to determine a direction and distance traveled by the autonomous moving object.