Pixel Instruments Corporation

Other

Steven J Anderson

James Carl Cooper

J Carl Cooper

An apparatus and methods are described for receiving, storing, and recovering from storage one or more television program while maintaining proper audio to video synchronization or lip sync when the program is displayed. Preferably the audio and video portions are in digital form and may be compressed or uncompressed. The audio and video may be recorded on a physical storage medium such as tape, an optical or magnetic computer disk, or solid state memory or other such device providing user control functions including start, stop, record, play and search, with increased reproduction capability of such stored programs being facilitated by the present invention. Timing information is recovered from the audio and video to be displayed utilized to alter the time duration of a contiguous signal block (the alpha length) of the audio and/or video to correct for any timing errors therebetween. Correction of frequency artifacts such as pitch errors which may be created with the alteration of alpha length is also taught.

Television program transmission, storage and recovery with audio and video synchronization

A slim compact disk media case spine label apparatus is provided, the apparatus comprising a backing, an adhesive operatively adhered to the backing, and a face bonded to the adhesive, wherein a first portion of the face is removable from the adhesive and a second portion of the face is preconfigured to fit substantially precisely against a spine of a slim compact disk media case. Also provided are related methods of labeling a spine of a slim compact disk media case and methods of manufacturing a label apparatus to be preconfigured for use in conjunction with a slim compact disk media case spine.

Slim compact disk media case spine label apparatus and method

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.

Phase shifting apparatus and method with frequency multiplication

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.

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Cupertino, CA, United States of America

Steven J Anderson