摘要:
The apparatus and method described herein shows a system of determining the delay of a delayed version of a sequence of images with respect to a relatively undelayed version. The system operates to take multiple samples of the delayed and undelayed versions at approximately the same sample position on the image and to correlate these samples over multiple image frames to determine which of a plurality of delayed images most closely match a given undelayed image. By knowing which delayed image frame most closely matches a given undelayed image frame it is shown to arrive at a coarse number of frames of delay. A fine delay measurement is achieved by adding a measure of the instantaneous frame to frame delay with respect to a known corresponding feature of the respective video type signals. The invention is also useful for comparing a given image to other images to determine the closest match.
摘要:
The present invention provides a phase shifting apparatus and method. The phase shifting apparatus comprises a signal generator and a converting device. An input signal is converted by the offset signals from the signal generator, thereby producing an output signal with the same frequency as that of the input signal. The phase of the output signal is determined by the difference of the offset signals applied to the converting device. In particular, when two offset signals are in quadrature, the output signal becomes in quadrature with the input signal. When the two offset signals have the same phase, the output signal has the same phase as that of the input signal. Preferably, the converting device includes two cascaded offset means, each having a multiplier and a filter coupling to the multiplier. A plurality of converting means may be coupled in parallel to the signal generator. On the basis of the offset signals applied to respective converting means, the phase shifting apparatus provides a plurality of outputs having different phase shifts. The frequency range of the input signal is very width and the phase shifting apparatus may operate in analog and digital forms.
摘要:
A network system for implementing a cloud platform within a network to which a device defining a computing environment for a user has access comprises an application management module, a community management module, and a user enrolment portal. The application management module enables access to an abstract application associated with a concrete application defining an implementation of the abstract application for the computing environment. The community management module manages a community comprised of a user credential and the abstract application, the community defines at least one of: a policy, a management process, and a service, under which the user can access the abstract application. The user enrolment portal supports an enrolment of the user in the community from the device and orchestrates a policy management mechanism to support an enforcement of the policy under which the user has access to the concrete application from the device.
摘要:
A virtual machine is constructed using a first file received at an endpoint from at least one remote server across a wide area network and a second file received at the endpoint from a local network of the endpoint.
摘要:
An apparatus and method is shown for modifying the presentation of pixels displayed or printed on a raster or matrix image or graphic display or printer, thereby increasing the apparent image quality. Means for deriving a plurality of neighboring pixels of the video signal, and means for determining pixel modification in response thereto, are also shown. Particular embodiments relating to increasing the apparent temporal and spatial resolution of raster scanned television devices are shown.
摘要:
The invention described herein provides an apparatus and method for accurately multiplying the phase or frequency of complex time varying signals by a given factor which may be non-integer.
摘要:
An apparatus and method for generating or shaping the waveform of electronic signals thereby controlling the high frequency energy content of transitions thereof and in particular for imparting a sine squared shape to synchronizing pulses utilized in television systems is shown.