Abstract:
An electronic device includes a memory having memory locations being subject to transient faults and permanent faults, and a fault detection circuit coupled to the memory. The fault detection circuit is configured to read the memory locations at a first time, and determine a first fault count and fault map signature including the transient and permanent faults at the first time based upon reading the plurality of memory locations, and to store the first fault count and fault map signature. The fault detection circuit is configured to read the memory locations at a second time and determine a second fault count and fault map signature including the transient and permanent faults at the second time based upon reading the memory locations, and compare the stored first fault count and fault map signature with the second fault count and fault map signature to determine a permanent fault count.
Abstract:
An integrated circuit (IC) having a scan compression architecture includes decompression logic coupled between test access input and a block of IC elements (e.g. flip-flops) coupled together to define a plurality of scan paths. The block of IC elements includes an initial data selector at an initial position of each of the scan paths, and an additional data selector downstream within at least one of the scan paths and configured to reconfigure an order of the IC elements within the at least one scan path. Compression logic is coupled between the block of IC elements and a test access output.
Abstract:
A power harvesting circuit for use in an open drain transmitter circuit is configured to generate two distinct harvested supply voltages at different voltage levels along with two distinct cascode voltages at different voltage levels. The harvested supply voltages are used to power circuitry in the transmitter circuit. The cascode voltages are used to bias cascode transistors in the open drain circuitry for different channels.
Abstract:
A device includes a matrix of active pixels. Each active pixel includes an OLED and a control circuit configured to refresh the active pixel and including at least one transistor having a first conduction terminal coupled to a supply line and a second conduction terminal coupled to the OLED. Supply circuitry is configured to apply a supply voltage to the supply line of each active pixel during the refreshing of the active pixel and for a time period less than a duration of the refreshing of the active pixel.
Abstract:
A method and apparatus for capturing stable images are disclosed. An ambient light sensor makes measurements of ambient light. A change in ambient light between two measurements is determined. If the change in ambient light measurements falls in a predefined range, then the change may be attributable to ambient light sensor being blocked by a user to trigger image capturing. Consequently, a camera is triggered to capture an image. Conversely, if the change in ambient light measurement is outside the range, image capturing is not triggered as the change may be attributable to other factors.
Abstract:
A NFC tag includes an NFC controller, with a secure element coupled to the NFC controller. The secure element is to send first configuration data to the NFC controller and not second configuration data. The first configuration data comprises data to be used by the NFC controller to generate responses to initial polling and anti-collision commands from an external NFC device and not data to be used by the NFC controller in processing a command from the external NFC device involving the use of an upper layer protocol. The second configuration data comprises data to be used by the NFC controller in processing a command involving the use of an upper layer protocol from the external NFC device.
Abstract:
A memory device includes an array of phase-change memory (PCM) cells and complementary PCM cells. A column decoder is coupled to the array of PCM cells and complementary PCM cells, and a sense amplifier is coupled to the column decoder. The sense amplifier includes a current integrator configured to receive first and second currents of a given PCM cell and complementary PCM cell, respectively. A current-to-voltage converter is coupled to the current integrator and is configured to receive the first and second currents, and to provide first and second voltages of the given PCM cell and complementary PCM cell to first and second nodes, respectively. A logic circuit is coupled to the first and second nodes and is configured to disable the column decoder and to discharge the bitline and complementary bitline voltages in response to the first and second voltages.
Abstract:
According to an embodiment described herein, a method for testing a memory includes receiving an address and a start signal at a memory, and generating a first detector pulse at a test circuit in response to the start signal. The first detector pulse has a leading edge and a trailing edge. A data transition of a bit associated with the address is detected. The bit is a functional bit. The method further includes determining whether the bit is a weak bit by determining whether the data transition occurred after the trailing edge.
Abstract:
A method for operating an augmented reality system includes acquiring video data from a camera sensor or video file, and identifying at least one region of interest within the video data. Augmented reality data is generated for the region of interest without receiving user input, with the augmented reality data being contextually related to the region of interest. The video data may be displayed with the augmented reality data superimposed thereupon in real time as the video data is acquired from the camera sensor or video file. The video data and the augmented reality data are stored in a non-conflated fashion. The video data may be displayed with updated AR content acquired for stored AR metadata during later playback. The method therefore allows the storage of AR ROI's and data from any suitable sensor as metadata, so that later retrieval is possible in the absence of additional processing.
Abstract:
An RFID transponder device has antenna terminals for coupling an antenna system to the device. A transmitter and a receiver are coupled to the antenna terminals. The device has at least one damping resistance connected to at least one of the antenna terminals. The at least one damping resistance is connected, depending on a voltage swing at the antenna terminals during a transmission burst period, either together with a serially connected switch in parallel to the antenna terminals that are coupled to the receiver, or together with a parallel connected switch between one of the antenna terminals and a terminal of the transmitter. A damping control is configured to activate the at least one damping resistance during a damping period after the transmission burst period by controlling the respective switch.