摘要:
A medical device configured to convert an analog signal using an adaptable bit number. The medical device includes an analog-to-digital (A/D) converter for receiving an analog signal. The A/D converter has a full scale range and a total number of bits spanning the full scale range. The A/D converter converts the analog signal to a digital signal over conversion cycles using an adaptable bit number so that on at least a portion of the conversion cycles an adapted number of bits spanning a portion of the full scale range less than the total number of bits is used by the A/D converter to convert the analog signal.
摘要:
A reconfigurable analog-to-digital (A/D) converter produces an N bit output in a first operating mode and an (N+1) bit output in a second operating mode. The reconfigurable A/D converter is especially well-suited for use in a read channel device.
摘要:
Systems and methods are provided for minimizing power consumption in a wireless mobile device. In one embodiment, a computer implemented method is provided that facilitates utilization of resources of a mobile device. This includes identifying available resources of a device and dynamically disabling or enabling subsets of the resources as a function of at least a channel estimation
摘要:
A digital-to-analog converter is disclosed. The converter includes a gradient correction module that generates a correction term based on a model of gradient error. The correction term is then applied to the signal path in the digital domain or applied to the output of the digital-to-analog converter in the analog domain. The model used to generate the correction term is based on a vertical gradient error in the array of current source elements, which may be modelled and calibrated using a second-order polynomial. Further, a digital-to-analog converter having a Nyquist DAC and an oversampled DAC is disclosed. When the oversampled DAC is enabled, the resolution of the Nyquist DAC may be increased while slowing the conversion rate.
摘要:
Systems and methods are provided for minimizing power consumption in a wireless mobile device. In one embodiment, a computer implemented method is provided that facilitates utilization of resources of a mobile device. This includes identifying available resources of a device and dynamically disabling or enabling subsets of the resources as a function of at least a channel estimation to improve or optimize performance of the device.
摘要:
The invention relates to a method and a corresponding system for converting a digital signal to an analog signal (50), said method using a plurality of signal sources (20), preferably current sources (56), at least two of said signal sources (20) being equal output signal magnitude sources (20), said method comprising the steps of: controlling said equal output signal magnitude sources (20) by a logic unit, providing a digital input signal to said logic unit, said digital input signal being derived from said digital signal to be converted, and summing the outputs of said equal output signal magnitude sources (20) to contribute to said analog signal (50).
摘要:
Systems and methods are provided for minimizing power consumption in a wireless mobile device. In one embodiment, a computer implemented method is provided that facilitates utilization of resources of a mobile device. This includes identifying available resources of a device and dynamically disabling or enabling subsets of the resources as a function of at least a channel estimation
摘要:
Systems and methods are provided for minimizing power consumption in a wireless mobile device. In one embodiment, a computer implemented method is provided that facilitates utilization of resources of a mobile device. This includes identifying available resources of a device and dynamically disabling or enabling subsets of the resources as a function of at least a channel estimation to improve or optimize performance of the device.
摘要:
The present invention relates to a solid-state image pickup device, a driving control method, and an image pickup apparatus that are capable of performing, in the case of changing the resolution of AD conversion, changing of only a pulse that needs to be changed, with a more simplified configuration. In a case where the mode of the resolution of AD conversion is a 9-bit mode, a decoder 102 operates only an H counter 104. In a case where the mode of the resolution of AD conversion is a 10-bit mode or a 12-bit mode, the decoder 102 stops a counting operation by the H counter 104 and starts counting by an idle counter 106 when the count value of the H counter 104 reaches a start count value stored in a register 101, and resumes counting by the H counter 104 when the count value of the idle counter 106 reaches the number of counts stored in the register 101. The present invention is applicable, for example, to an image sensor employing a column AD conversion method.