摘要:
The high speed data pathway system is used to convey data signals to integrated circuits connected to mother and daughter boards. The integrated circuits include a package and an integrated circuit chip carried by the package. An internal transmission line is carried by the package and coupled to the integrated circuit chip. The package includes both input and output connections for the internal transmission line. A high speed pathway is formed by serially connecting the internal transmission lines with external transmission lines to form a unified transmission medium. Advantageously, the internal transmission lines, external transmission lines and the connection between them have substantially corresponding characteristic impedances.
摘要:
Methods and apparatus for high speed signal sampling and recording utilizing mutual repulsion field-induced splitting of charge carriers in a charge transfer channel.
摘要:
A floating point analog to digital converter having an exponent converter which divides the input signal successively one-half until the divided signal is within the range of a mantissa linear analog to digital converter. The exponent converter also generate a digital exponent representative of the division factor. The resulting divided signal is then digitized by the mantissa analog to digital converter. An output is thereby provided composed of a digital exponent and a digital mantissa. In one embodiment, the floating point converter is a charge mode converter suitable for direct interface to a charge mode device such as a CCD image sensor.
摘要:
Methods and apparatus for recording pulse signal information utilizing threshold integrating devices in which a pulse shaped signal is applied to a plurality of threshold integrating devices each having a predetermined quantity of electric charge carriers stored therein, in which the threshold integrating devices are responsive to application of electric potentials above a predetermined threshold potential value for altering the amount of charge stored in the charge storage zone of the threshold integrating devices. By providing a plurality of threshold integrating devices each having a different threshold potential, significant signal information may be obtained by passive application of the pulsed signal to a plurality of the devices. This signal information may be obtained by determining the amount of charge in the charge storage zones of the respective threshold integrating devices subsequent to application of the pulsed signal thereto.
摘要:
A method and apparatus are provided for reducing distortion in a dynamically delayed digital sample stream of an imaging system. The method includes the steps of delta-sigma modulating an input analog signal of the imaging system at a frequency above the Nyquist frequency of the input analog signal to generate a digital sample stream and changing a length of the sample stream to delay a portion of the sample stream while maintaining synchronism between a delta-sigma modulator and a demodulator of the system.
摘要:
A method and apparatus are provided for tracking and holding a voltage. The method includes the steps of providing an external analog voltage on an input of the track and hold circuit during a tracking mode of the track and hold circuit, storing a representation of the sampled external voltage in a storage device of the track and hold circuit, blocking a signal path between the external voltage and the storage device during a holding mode of the track and hold circuit and clamping the input of the track and hold circuit to a predetermined voltage during the holding mode.
摘要:
A method and apparatus are provided for reducing distortion in a dynamically delayed digital sample stream of an imaging system. The method includes the steps of delta-sigma modulating an input analog signal of the imaging system at a frequency above the Nyquist frequency of the input analog signal to generate a digital sample stream and changing a length of the sample stream to delay a portion of the sample stream while maintaining synchronism between a delta-sigma modulator and a demodulator of the system.
摘要:
An apparatus and method of equalizing a first and second charge packet. The apparatus includes a charge splitter for splitting the first charge packet into a third charge packet on the first side of the charge splitter and a fourth charge packet on the second side of the charge splitter. The second charge component is split into a fifth charge component on the first side of the charge splitter and a sixth charge component on the second side of the charge splitter. The apparatus includes a charge combiner for adding the third and sixth charge packets and the fourth and fifth charge packets.
摘要:
An apparatus and method of equalizing a first and second charge packet. The apparatus includes a charge splitter for splitting the first charge packet into a third charge packet on the first side of the charge splitter and a fourth charge packet on the second side of the charge splitter. The second charge component is split into a fifth charge component on the first side of the charge splitter and a sixth charge component on the second side of the charge splitter. The apparatus includes a charge combinet for adding the third and sixth charge packets and the fourth and fifth charge packets.