42 results about "Multiple zeros" patented technology

The invention includes: a bitstream updating output unit configured to receive a bitstream and update a syntax element located at a beginning of the bitstream according to a code length thereof and outputs the syntax element; a bitstream decoding unit configured to decode, in response to a decode request, a variable-length code of the syntax element outputted from the bitstream updating output unit; a zerosLeft updating unit configured to update zerosLeft based on a specific syntax element decoded by the bitstream decoding unit; a run_before remaining number updating unit configured to update a run_before remaining number based on a specific syntax element decoded by the bitstream decoding unit; and a syntax selection unit configured to select a syntax element to be decoded by the bitstream decoding unit. Thus, multiple zero run_before syntaxes and one non-zero run_before syntax, or multiple zero run_before syntaxes are decoded all at once.

A multi-stage, push-pull driven, resonant DC-AC converter ties the center-taps of primary windings of respective push-pull stages together, and drives each center-tap with a current source. Tying the center-taps of the primary windings of the respective DC-AC converters' transformers together forces the voltages at these locations to be the same, so as to achieve mutual resonant synchronization between the two stages. Connecting the center-taps to a current source provides the necessary power for each stage and allows for a variation in current between stages, as the center-tap voltages track one another. The tied-together center-tap voltage is monitored to obtain the zero voltage switching required for efficient operation of switching devices of each DC-AC converter stage.

The invention provides a two-stage superconducting quantum interference apparatus's magnetic flux-voltage conversion device, method and application thereof. Through the amplification and combination of current's positive feedback and limiting amplification, the magnetic flux-voltage transfer rate is improved and the outputted magnetic amplitude is less than 2[phi]0, which avoids multiple zero points of transmission. At the same time, the SQUID magnetic detection module, using an under-feedback principle, achieves a magnetic flux detector that can realize self-reset and has a monotonic transfer characteristic to ensure that the outputted magnetic flux of the SQUID magnetic flux amplification module is conducted at a fixed operating point under a uniquely defined transmission characteristic for magnetic-voltage conversion and that the problem of multi-value transmission characteristics is addressed. The invention has the advantages that the two-stage SQUID amplifying module can improve the magnetic flux-voltage transmission rate and the single operating point cycle value in the transmission characteristic is obtained to avoid the multi-value problem; the operation is simple and the noise performance is improved greatly and can provide a practical high-performance SQUID magnetic sensor, thus a practical high-performance SQUID magnetic sensor can be formed.

The invention relates to an access point voltage phase detection method of a line inductance based photovoltaic inverter by applying multiple zero-crossing points, which is simple, has small computation quantity, and can effectively detect the zero-crossing points and determine the phase of an actual grid voltage. The zero-crossing point moment of the actual gird voltage is accurately calculated through detecting before-and-after boundaries of the multiple zero-crossing point region by utilizing a unique characteristic that a multiple zero-crossing point region of the access point voltage wave form of the photovoltaic inverter is in strict bilateral symmetry on the zero-crossing points of the actual grid voltage, and further the specific phase at the current time in the grid voltage is determined .