摘要:
Memory technologies for storing filter samples include RAMs and CCDs. Adaptive memory capability and memory servo capability improve memory characteristics. In a RAM embodiment, a detector is used to detect a memory address condition and to control the memory and the memory address register in response thereto. In a CCD embodiment, a detector is used to detect a memory reference signal and to refresh the memory signals in response thereto. Improved memory refresh, memory performance, and memory capacity enhance system characteristics. Improved memory architecture provides advantages of increased speed, lower cost, and efficiency of implementation. Information stored in memory can be scanned out at a rate greater than the addressing rate associated with the memories. This permits higher speed operation with lower cost memories. Use of an output buffer, such as a FIFO, permits normalization of memory clock rates.
摘要:
A filter processor provides improved capabilities and reduced complexity by inputting and processing lower resolution signals and by generating higher resolution filtered signals. In a preferred embodiment; an incremental filter processor generates incremental input signals, performs incremental processing, and generates multi-bit filtered signals. Input signals are received from radar, sonar, seismic, or other sources; are processed by the filter processor to generate filtered signals; and can be post processed by a post processor. In a preferred embodiment, the input circuit is a serial input and parallel output circuit, such as a delay line or a CCD; the filter processor is an incremental fast Fourier transform processor; and the post processor is an incremental frequency domain correlator. Other post processors include a frequency domain integrator and an RSS post processor to convert coherent signal samples to noncoherent signal samples.
摘要:
An improved data processor architecture is provided having integrated circuit (IC) memories. Provision is made for dynamic memories with a memory refresh arrangement. Memory refresh is provided in response to instruction execution, synchronized with computer control signals to minimize contension or conflicts with computer operations and to share control circuitry.
摘要:
An incremental digital filter provides high speed and low cost capability such as for performing fast Fourier transforms (FFTs), correlations, convolutions, and other digital filter operations. One configuration operates at microwave sample rates, computing a complete 512-point FFT in 0.2 microseconds for an effective sample rate of 2.56 gigahertz. High speed and low cost are derived from a parallel pipeline architecture in combination with incremental processing. Parallel pipeline architecture provides extremely high speed while the incremental mechanization provides a simple arrangement with a low component count for low cost. The incremental nature of the processor provides an integrating type mechanization, where integration-after-transformation yields high processing gain for signal-to-noise-ratio enhancement.High data rate input and output mechanizations are provided to accommodate the high processing rates. An improved input mechanization involves analog signal to incremental digital conversion. An improved output mechanization involves integration after filtering for data rate reductions and for signal enhancement and also involves a bus output structure for multiplexing of output parameters.
摘要:
A system is provided for voice signal processing including recognizing input voice messages and generating output voice messages. Digital processing of voice signals yields particular advantages. Voice responsive operations provide operator interaction flexibility. Communication of digital information in response to voice information provides data compression for communication applications. Other applications of the voice signal processing system include an audionic clock, an audionic calculator, and an audionic announciator.
摘要:
An optical system has an optical image projected on an analog memory, such as a CCD array, generating analog charge signals in the analog memory. The analog charge signals are processed with an analog to digital converter to generate digital information. The digital information is processed with an integrated circuit frequency domain processor to generate frequency domain information. The frequency domain information can be stored in an output memory and can be communicated to a remote location. An image can be displayed in response to the stored analog image information and in response to the frequency domain information. A machine can be controlled in response to the frequency domain information.
摘要:
A filtering system is provided for acquiring and processing signals using a sampled filter for signal separation and signal enhancement; such as for determing locations, distances, and times in a geophysical exploration system. Signature signals permit mixing and seperation with sampled filters, such as for sharing common circuitry and for increasing the amount of acquired information. A sampled filter, such as a digital correlator, is provided for generating high resolution output data in response to low resolution input data processed with low resolution computation circuits. A real-time time-domain correlator is provided with single-bit resolution computational elements to provide improved correclation filtering. A high speed real-time correlator is provided to enhance signals with copositing-after-correlation and with correlation using a plurality of correlation operators.
摘要:
A filter display system is provided for displaying filtered information. Input signals are multiplied by reference signals and summed to generate filtered signals for display. In an on the fly processing configuration, an input signal sample is processed in response to a plurality of reference samples before processing of other input signal samples. Various memory configurations are used to store signal samples; including RAMs, ROMs, and CCD memories. Processing is performed with various resolutions, including single-bit sample processing and multi-bit sample processing. Processing gain is used to provide processed signal samples having resolution better than the resolution of input signal samples. A display is provided that iteratively improves the displayed information as the filtering progresses. A pipeline configuration uses hardware for progressive processing of signal samples. An iterative configuration is implemented with a computer processing signal samples in iterative form. A hardware configuration uses address counters to process samples. Processing in response to a display synchronization signal provides synchronization between a processor and a display.
摘要:
Control of illumination with illumination amplifier devices provides a basis for implementing various types of illumination systems. Also illumination amplifiers in closed illumination servo loops provide improved illumination control. An illumination control system provides precise control of camera operations for photographic and photoplotter applications. Illumination amplifier devices are used in conjunction with electronic control circuits to provide flexibility and precision in camera systems, reducing reliance on prior art mechanical devices.Illumination control circuits are presented in the form of digital gates and flip-flops and in the form of analog computational elements to provide illumination computer systems. In addition, a batch fabricated illumination computer arrangement is presented for improved implementation of illumination control systems.Illumination amplifiers are further configured for control of illumination in buildings and automobiles. Various types of devices such as windows, shutters, shades and visors are configured with illumination amplifiers to provide electronic control of illumination.Batch fabricated display arrangements are provided having an illumination source integral with an illumination amplifier for low cost, small volume, and flexibility. Also, colored display arrangements are provided for control of colors with illumination amplifier devices.A projection illumination amplifier arrangement is provided having high-intensity large-screen capability and heat transfer design for cooling.
摘要:
A machine and a control system are provided for generating high registration photomasks with a contact printing arrangement. Further, a unique control arrangement is provided for controlling a machine such as a high registration contact print machine or other type of machine. In a preferred embodiment, a control system generates signals to a step and repeat contact printing machine that exposes many prints of master die images on a photographic film, where these prints have a high registration characteristic. In a further embodiment a unique control arrangement is provided for machine control operations.