Abstract: A radio includes: a first transceiver and a second transceiver for a first frequency band, the radio to relay a radio signal received by the second transceiver to the first transceiver via an analog signal path and to retransmit the radio signal using the first transceiver; and a control transceiver for communicating with a wireless network including other radios using a second frequency band. Each of the other radios includes same elements as the radio. The radio is to coordinate with the other radios via the wireless network to: control the first transceiver and the second transceiver to determine a network map for relaying radio signals within the first frequency band; and determine one or more time-multiplexed routing configurations of the radio. The radio is, during a time period corresponding to time-multiplexed routing configuration, to steer the first transceiver to first configuration direction corresponding to one of the other radios.

Abstract: A photo-capacitance sensor includes an input surface and one or more light sources arranged to illuminate a portion of the input surface. The photo-capacitance sensor also includes an array of photo-capacitors arranged to receive light from the one or more light sources which is reflected from an object in contact with, or proximate to, the illuminated portion of the input surface. The array of photo-capacitors is configured for detecting a reflective pattern of the object.

Abstract: A phase shifter includes an active matrix transistor array. Each transistor of the active matrix transistor array is configured to control a voltage bias across a corresponding voltage-controlled capacitor of voltage-controlled capacitors to control a capacitance of the corresponding voltage-controlled capacitor. The phase shifter further includes signal channels. Each signal channel of the signal channels has a first end and a second end and is AC coupled at a point between the first end and the second end to one or more of the voltage-controlled capacitors. The phase shifter is configured to control a phase shift applied to each corresponding signal channel of the signal channels by setting the voltage bias across each of the one or more of the voltage-controlled capacitors coupled to the corresponding signal channel.

Abstract: A radio includes a liquid crystal (LC) phase shift layer including LC pixels. A path length of each LC pixel varies as a function of a voltage applied across the LC pixel. The radio further includes one or more planar antennae. Each of the one or more planar antennae is arranged to at least one of receive or transmit radio signals through the LC phase shift layer. The radio further includes an active matrix transistor array. Each transistor of the active matrix transistor array is configured to control a corresponding voltage across a storage capacitor. Each storage capacitor is connected across a respective LC pixel. The radio further includes a radio frequency transceiver circuit connected to the one or more planar antennae and a controller to perform beamforming of radio signals by controlling the active matrix transistor array to set the path length for each of the LC pixels.

Abstract: An apparatus and associated methods utilize a flexible touch panel having a layer of piezoelectric material arranged between a number of first electrodes and at least one second electrode and a device connected to the first electrodes and configured to determine a bending state of the touch panel based on one or more radii of curvature of the touch panel from signals received from one or more of the first electrodes. A touch location for one or more user interactions is determined from signals received from the one or more of the first electrodes. An electronic device including the apparatus may switch between operating modes based on the bending state of the touch panel. A non-transitory computer readable medium may store computer programs implementing the methods for determining the bending state of the touch panel, switching the device between modes based on the bending state and determining a touch location.

Abstract: A photo-capacitance sensor includes an input surface and one or more light sources arranged to illuminate a portion of the input surface. The photo-capacitance sensor also includes an array of photo-capacitors arranged to receive light from the one or more light sources which is reflected from an object in contact with, or proximate to, the illuminated portion of the input surface. The array of photo-capacitors is configured for detecting a reflective pattern of the object.

Abstract: A wireless transceiver (1) includes a planar substrate (2) having first (3) and second (4) opposite faces and having a thickness between the first (2) and second (3) opposite faces. The wireless transceiver (1) also includes a number of first antennae (Rx1, . . . , RxN) supported on the first face (3). The wireless transceiver (1) also includes a number of second antennae (Tx1, . . . , TxM) supported on the second face (4). The wireless transceiver (1) also includes a circuit (7) supported by the planar substrate (2) and connected to the first antennae (Rx1, . . . , RxN) and the second antennae (Tx1, . . . , TxM). The circuit (7) includes a number of vias (8) formed through the thickness of the planar substrate (2) for transmission of signals between the circuit (7) and the first antennae (Rx1, . . . , RxN) and/or between the circuit (7) and the second antennae (Tx1, . . . , TxM). The circuit (7) is configured to control the first antennae (Rx1, . . .

Abstract: A photo-capacitance sensor includes an input surface and one or more light sources arranged to illuminate a portion of the input surface. The photo-capacitance sensor also includes an array of photo-capacitors arranged to receive light from the one or more light sources which is reflected from an object in contact with, or proximate to, the illuminated portion of the input surface. The array of photo-capacitors is configured for detecting a reflective pattern of the object.

Abstract: A pixel having an organic light emitting diode (OLED) and method for fabricating the pixel is provided. A planarization dielectric layer is provided between a thin-film transistor (TFT) based backplane and OLED layers. A through via between the TFT backplane and the OLED layers forms a sidewall angle of less than 90 degrees to the TFT backplane. The via area and edges of an OLED bottom electrode pattern may be covered with a dielectric cap.

Abstract: A photo-capacitance sensor includes an input surface and one or more light sources arranged to illuminate a portion of the input surface. The photo-capacitance sensor also includes an array of photo-capacitors arranged to receive light from the one or more light sources which is reflected from an object in contact with, or proximate to, the illuminated portion of the input surface. The array of photo-capacitors is configured for detecting a reflective pattern of the object.

Abstract: A method of processing a number of force values is described. Each force value corresponds to a sensor location. The sensor locations are spaced apart along a direction. The method includes receiving the force values (S11). The method also includes determining whether the force values include one or more candidate peaks (S12). Each candidate peak corresponds to a local maximum of the force values. The method also includes, in response to at least one candidate peak exceeds a minimum force threshold (S13), interpolating the force values and estimating a number of peak coordinates and corresponding peak force values based on the interpolated force values and the candidate peaks (S14) which exceed the minimum force threshold.

Abstract: A pixel having an organic light emitting diode (OLED) and method for fabricating the pixel is provided. A planarization dielectric layer is provided between a thin-film transistor (TFT) based backplane and OLED layers. A through via between the TFT backplane and the OLED layers forms a sidewall angle of less than 90 degrees to the TFT backplane. The via area and edges of an OLED bottom electrode pattern may be covered with a dielectric cap.

Abstract: An apparatus (2, 22) is described which includes a touch panel (1, 21). The touch panel (1, 21) includes a layer of piezoelectric material (4) disposed between a number of sensing electrodes (5, 23, 24) and at least one counter electrode (6). The apparatus (2, 22) also includes a touch controller (3) connected to the touch panel (1, 21). The touch controller (3) is configured to determine, in response to receiving piezoelectric signals (7) from one or more of the sensing electrodes (5, 23, 24), a location (9) and an applied force (10) corresponding to a user interaction (11) with the touch panel (1, 21). The touch controller (3) is configured to determine a capacitance value (20) of one or more of the sensing electrodes (5). The touch controller is configured to operate in a force-based mode, a capacitance-based mode or a mixed force-capacitance mode depending on the type of input received.

Abstract: An apparatus (73) for processing signals from a touch panel (10) is described. The touch panel (10) includes a layer of piezoelectric material (16) disposed between a number of sensing electrodes (14, 20) and at least one common electrode (15). The apparatus (73) includes a capacitive touch controller (69) for connection to the sensing electrodes (14, 20). The apparatus (73) also includes a switch network (74) including a number of inputs for connection to some or all of the sensing electrodes (14, 20), and an output connected to system ground or a common mode voltage (VCM). The apparatus (73) also includes a second circuit (24, 44) for connection to the at least one common electrode (15) and configured to generate, based on signals received from the at least one common electrode, a second pressure signal (30) indicative of a total pressure applied to the touch panel (10).

Abstract: An apparatus is described which it a flexible touch panel (21). The flexible touch panel (21) includes a layer of piezoelectric material (9) arranged between a number of first electrodes (7, 8) and at least one second electrode (8,14). The apparatus also includes a device (3) connected to the first electrodes (7, 8) and configured to determine one or more radii of curvature (R1, R2) of the flexible touch panel (21) based on signals received from one or more of the first electrodes (7, 8).

Abstract: A force-sensing touch panel (31) is described which includes a layer structure stacked in a thickness direction between first and second surfaces. The layer structure includes from first surface to second surface, a number of first electrodes (7) and a number of second electrodes (8), a layer of piezoelectric material (9), and a number of third electrodes (30). The first and second electrodes (7, 8) are configured to define a coordinate system for sensing a location of a force applied to the touch panel in a plane perpendicular to the thickness direction. The third electrodes (30) are configured such that signals received from the first, second and third electrodes (7, 8, 30) enable determining unique locations corresponding to two or more forces applied to the touch panel (31) concurrently.

Abstract: An apparatus (73) for processing signals from a touch panel (10) is described. The touch panel (10) includes a layer of piezoelectric material (16) disposed between a number of sensing electrodes (14, 20) and at least one common electrode (15). The apparatus (73) includes a capacitive touch controller (69) for connection to the sensing electrodes (14, 20). The apparatus (73) also includes a switch network (74) including a number of inputs for connection to some or all of the sensing electrodes (14, 20), and an output connected to system ground or a common mode voltage (VCM). The apparatus (73) also includes a second circuit (24, 44) for connection to the at least one common electrode (15) and configured to generate, based on signals received from the at least one common electrode, a second pressure signal (30) indicative of a total pressure applied to the touch panel (10).

Abstract: A device (1) includes a body (2) and a touch panel (3) supported by, integrated with, or underlying the body (2). The touch panel (3) includes a layer of piezoelectric material (5) disposed between a plurality of first electrodes (6) and at least one second electrode (7). The device (1) also includes at least one second piezoelectric input region (8) supported by, integrated with, or underlying a portion of the body (2) which does not correspond to the touch panel (3). The device (1) is configured to receive user input using the touch panel (3) and/or at least one piezoelectric input region (8).

Abstract: A touch sensor (1) for combined capacitive touch and force sensing is described. The touch sensor (1) includes number plurality of first electrodes (4) and a number of second electrodes (5). The second electrodes (5) are insulated from the first electrodes (4). The first and second electrodes (4, 5) form a grid for capacitive touch sensing. The touch sensor (1) also includes a transparent cover (6). The touch sensor (1) also includes a transparent piezoelectric film (3) arranged between the transparent cover (6) and the first and second electrodes (4, 5). The touch sensor (1) also includes a patterned counter electrode (8) disposed between the transparent piezoelectric film (3) and the transparent cover (6). The patterned counter electrode (8) is a conductive grid formed from the union of plurality of counter electrode line elements (9). A pitch of the counter electrode line elements (9) is larger than a pitch of the first electrodes (4) and/or second electrodes (5).

Abstract: A display system includes a driver for operating a panel having a plurality of pixels arranged by a plurality of first lines and at least one second line The driver includes a driver output unit for providing to the panel a single driver output for activating the plurality of first lines, the single driver output being demultiplexed on the panel to activate each first line.