digital (Total 248225 Patents Found)

A digital map display zooming method for continuously enlarging and reducing a displayed portion of a digital map as map information in digital form within a display screen is provided which comprises the steps of displaying the displayed portion of the digital map at the display screen, displaying a scroll part within...
A camcorder comprises a video camera responsive to light images for supplying video signals on a frame by frame basis; circuitry responsive to the video signals supplied by the video camera for generating segments of a transport stream, which segments are susceptible to decoding by an MPEG-2 decoding apparatus; and a r...
A circuit breaker includes a microprocessor-based trip unit and a designator circuit including a plurality of jumper positions. Each jumper position corresponds to one digit of a four digit style number specifying which of a plurality of optional functions and features are incorporated in the specific trip unit. Each j...
A multi-bit sigma-delta analog-to-digital converter (ADC) (40) includes a sigma-delta modulator (41) with a multi-bit quantizer (46) and a digital-to-analog converter (DAC) (47). An output of the DAC (47) provides an error signal of the modulator (41). The quantizer (46) provides a quantized signal having multiple bits...
Techniques for maintaining beam pointing for an Electronically Scanned Antenna (ESA) as its frequency is varied over a wide frequency bandwidth. A technique uses discrete phase shifters, a number of stored states, and a control methodology for rapidly switching among the states....
A three-port conference circuit for use in a pulse code modulated communication system including a first speaker register including an input connected to a telephone system information memory output and including an output, a second speaker register including an input connected to the telephone system information memor...
A storage controller for independently controlling the transfer of vectors of data into and out of a memory from a plurality of input devices and a digital signal processor capable of performing complex arithmetic functions. Program instructions, stored in the memory of the storage controller, specify the sequence of v...
Two digital radiologic images taken from different viewing directions of a same region, notably a mammogram study of the same breast, are automatically processed by a computer to identify suspect masses by producing processed mammogram images in which suspect spots, the skinline and the nipple are marked or enhanced. C...
An operational amplifier includes transistors for providing a controlled current path. At least one of the transistors is in an isolated well in a substrate. Offset of the operational amplifier is corrected by applying a back gate bias voltage to at least one isolated well and changing impedance of the transistors. The...
A digital plotting system for displaying curved line information. This sym employs short vector information that provides an incremental trace of a curve that is defined by a variable exception vector that is dependent upon trend and exception vectors represented by ODD and EVEN bits described as binary 1's or 0&#...
A receiver in a digital cellular communication system includes a system for receiving a signal transmitted in the cellular system and representing a code word encoded in a binary linear block code and a first digital signal processor for demodulating the signal and a second digital signal processor for decoding the bin...
An analog-to-digital converter is comprised of an analog delta-sigma modulator (10) and a digital processing section (14). The digital processing section (14) is comprised of a plurality of digital processing sections fabricated on a monolithic device. A high precision FIR filter (20) is provided for providing a high r...
A high speed counter circuit for counting electrical pulses includes a master/slave flip-flop at the input stage of the counter. An AND gate logically ANDs the pulses being counted with the master output to produce a first gating signal. A plurality of cascade coupled flip-flops each having a slave and an inverse slave...
Input/output (I/O) apparatus for a system is disclosed utilizing a digital processor for entering analog, digital and discrete data into the processor and receiving analog, digital and discrete data from the processor via an I/O data bus. A plurality of analog data signals are applied sequentially to an analog to digit...
A touch input device which continuously samples and digitally stores ambient light readings and compares these with previously stored readings is taught. Briefly stated, a phototransistor is turned on before, during and after an LED emitter energization. An ambient value is calculated which is subtracted from the value...
A delta-sigma analog/digital converter is provided for operating in the analog domain to generate a digital value that is to be processed by a digital signal processor (DSP) (26) to provide on the output a digital output. Each data node in each processing element in the DSP (26) is mirrored by the way of a correspondin...
In a digital echo canceller using an impulse response filter, an interpolating and synchronizing circuit is used to couple the received digital signals from the four-wire circuit to the input of the filter. The interpolation and synchronization circuit generates signals having values between the values of received digi...
A video memory device is provided with a memory circuit, a write control circuit for controlling writing to the memory circuit by utilizing the horizontal synchronizing signal of a video signal input to the memory circuit, and a read control circuit for controlling reading from the memory circuit by utilizing the horiz...
An apparatus and a method for detecting a carrier signal of a phase shift keyed modulated signal. A first counter circuit generates a plurality of counts, with each count being a number of cycles of a reference frequency signal occurring between two consecutive rising edges of an intermediate frequency signal. A compar...
A digital video tape recorder includes a rotary drum that has a leading head and a trailing head mounted thereon for recording video signals in respective slant tracks scanned on the tape while the tape is advanced. Each of the tracks includes, in sequence in the scanning direction of the respective head, a first auxil...
A copy flag detecting circuit in a device detects the copy generation management information. This copy generation management information is inserted in the CIP header of the IEEE 1394 packet for transmission. The copy flag detector of the 1394 interface in the device detects the copy generation management information ...
In a digital information reproducing apparatus, a digital signal having passed through a band-limited transmission system is waveform-shaped at a threshold level controlled to its optimal value so that the information can be properly read out. The apparatus includes a threshold level control circuit for controlling the...
A method and system for controlling a dynamic range of a medical diagnostic image provided by a medical diagnostic system. A target dynamic range is identified independent of a dynamic range of an original medical image. A presentation map is generated defining a relation between the dynamic range of the original medic...
In a magnetic recording and reproducing apparatus, an audio signal and a video signal are assigned to first and a second channels of an ordinary magnetic recording and reproducing apparatus in respectively, and recorded at a transmission rate twice that of the usual rate, so that it is possible to record an audio signa...
A video signal digital processing system comprises an A/D converter for converting an input analog video signal employing the NTSC or PAL system into a digital video signal, a first frequency converter for generating a signal sampled at a frequency f s which is a predetermined integer times a horizontal synchronizing ...
A digital-controlled oscillator (DCO) is utilized in an all-digital phase-locked loop for eliminating frequency discontinuities. The DCO includes a tank module and a negative gm cell. The tank module comprises a plurality of cells, at least a portion of the cells comprising a first tracking set and a second tracking se...