Abstract:
A threshold logic element (TLE) is disclosed. The TLE includes a first input gate network, a second input gate network, and a differential sense amplifier. The first input gate network is configured to receive a first set of logical signals and the second input gate network configured to receive a second set of logical signals. The differential sense amplifier is operably associated with the first input gate network and the second input gate network such that the differential sense amplifier is configured to generate a differential logical output in accordance with a threshold logic function. To obfuscate the TLE, any number of obfuscated transmission gates can be provided in one or both of the input gate networks. The obfuscated transmission gates are obfuscated such that obfuscated transmission gates are incapable of effecting the threshold logic function of the TLE and thus hide the functionality of the TLE.
Abstract:
A system and method for modeling an IC (integrated circuit) employs a mesh model and a grid model for separating impedance effects between nearby and far-away pairs of mesh elements. Models for relating currents and voltages can be incrementally adapted from other designs or design elements in applications including mixed-signal, analog and RF (radio frequency) circuits.
Abstract:
A method determining an IC (integrated circuit) design includes: determining one or more design variables, wherein the one or more design variables include one or more device variables and one or more weights; determining one or more net lengths and one or more layout metrics from the one or more device variables and the one or more weights; and determining the IC design from the one or more device variables and the one or more net lengths. The IC design includes a schematic and a layout. The process can be repeated as needed according to performance criteria that may include circuit performance metrics and layout performance metrics.
Abstract:
A visual tracking system for tracking and identifying persons within a monitored location, comprising a plurality of cameras and a visual processing unit, each camera produces a sequence of video frames depicting one or more of the persons, the visual processing unit is adapted to maintain a coherent track identity for each person across the plurality of cameras using a combination of motion data and visual featurization data, and further determine demographic data and sentiment data using the visual featurization data, the visual tracking system further having a recommendation module adapted to identify a customer need for each person using the sentiment data of the person in addition to context data, and generate an action recommendation for addressing the customer need, the visual tracking system is operably connected to a customer-oriented device configured to perform a customer-oriented action in accordance with the action recommendation.
Abstract:
A system and method for modeling an IC (integrated circuit) employs a mesh model and a grid model for separating impedance effects between nearby and far-away pairs of mesh elements. Models for relating currents and voltages can be incrementally adapted from other designs or design elements in applications including mixed-signal, analog and RF (radio frequency) circuits.
Abstract:
In an automated integrated circuit design, if the performances of a layout of circuit devices are not within predetermined tolerances of performance specifications, at least one of the circuit devices is resized or repositioned and an updated value of a device parameter for each resized or repositioned circuit device is determined. A difference between the initial and updated value of each device parameter is then determined and each difference is combined with a ratio formed from changes in the value of one of the device parameters and changes in the value of one of the performances affected by the device parameter. The result of this combination is then combined with the initial value of the performance to determine an updated value therefor.
Abstract:
This disclosure relates generally to digital synchronous circuits that introduce clock skew without requiring clock buffers in a clock network. In one embodiment, the digital synchronous circuit includes a first flip flop and a second flip flop. The first flip flop is synchronized to be transparent and to be opaque in accordance with a first clock signal while the second flip flop is configured such that the second flip flop is synchronized to be transparent and to be opaque in accordance with a second clock signal. However, the second flip flop is configured to generate the first clock signal such that the second flip flop provides the first clock signal in a first clock state in response the second flip flop becoming transparent and provides the first clock signal in a second clock state in response the second flip flop becoming opaque thereby providing a clock skew without clock buffers.
Abstract:
A method of system design, and more particularly a method of designing systems that achieve a set of performance goals using a hierarchically partitioned system representation wherein performance simulations are performed at multiple levels within the hierarchy and are combined to simulate a system level result in order to reduce the aggregate time required for performance simulation.
Abstract:
To estimate a distribution of voltages or currents in the layers of a multi-layer circuit, an exemplary current flow in each layer is discretized into a number of current vector elements and at least one scalar charge element related to the charge associated with each current vector element. A first distribution of voltages induced in each circuit layer is determined from current vector elements in all of the circuit layers. A second distribution of voltages induced in each circuit layer is determined from the scalar charge elements in all of the circuit layers. For each circuit layer, the first and second distributions of voltages induced therein are combined to determine an actual distribution of voltages in the circuit layer.
Abstract:
A number of small wells under the isolation layer are formed using the same mask made of photoresist and implant step that is used for the regular wells. The small wells are formed close enough together so that they merge during normal subsequent semiconductor processing to form a merged well. The normal wells and the small wells have a concentration that is greater than that of the merged well. The desired merging of the small wells is ensured by making sure that the small wells are sufficiently close together that the normal diffusion of well implants, which occurs from the particular semiconductor process that is being used, results in the merging. One desirable use of the merged well, with its lower doping concentration, is as a resistor that has more resistance than that of the regular well without requiring an additional implant.