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411results about How to "Precision production" patented technology

Method and apparatus for generating bit errors in a forward error correction (FEC) system to estimate power dissipation characteristics of the system

A method and apparatus for generating and inserting bit errors in data words that have been encoded in a forward error correction (FEC) system in order to estimate power dissipation. In accordance with the present invention, it has been determined that a burst error generator that is capable of erroring the maximum number of correctable data bits in every FEC encoded frame, which allows the designer to accurately produce test vectors that are suitable for use in commercially available power estimation tools. In addition, after the IC is produced, the burst error generator of the present invention can be enabled to provide real-time FEC power dissipation data for use in system thermal modeling, thus obviating the need to use costly external devices that emulate a given error rate. Furthermore, the power dissipation data obtained in real-time may be used to refine the initial design power estimate, which will then allow the designer to develop a more accurate prediction of power consumption for future IC designs. Thus, the burst error generator of the present invention is capable of reducing iterations of IC designs by accurately estimating the worst-case power dissipation of FEC decoders.
Owner:CIENA

Bow-type cultivation trunk molding method of lythraceae lagerstroemia trunks

ActiveCN103098663AInnovative styling methodsEasy to viewHorticulture methodsLythraceaeLagerstroemia
The invention discloses a bow-type cultivation trunk molding method of lythraceae lagerstroemia trunks. The method mainly includes the following steps: (1) designing trunk molds, deconstructing the molds into single-plant technical atlases, and selecting a planting bed for cultivating nursery-grown plants; (2) manufacturing and installing a supporting net frame in the planting bed; (3) manufacturing and installing a bow-shaped cultivation trunk molding ladder frame on the supporting frame; (4) carrying out bud fixing and bud picking on the nursery-grown plants; (5) binding and fixing twigs on the bow-shaped cultivation trunk molding ladder frame; (6) unbinding and exchanging binding objects which are not beneficial for trunk growth; (7) carrying out multi-point nurse grafts on the bow-shaped trunks according to molding design; and (8) cultivating in a healing mode, constructing crowns, the trunks and branches, and forming the target molds. The bow-type cultivation trunk molding method of the lythraceae lagerstroemia trunks is creative. Moreover, the nurse grafts can be carried out on single plants of the certain number to obtain the molded trunks, molding time is shortened, and characters, patterns or three-dimensional bodies can also be molded on planes or curved surfaces of the trunks.
Owner:TONGREN MANTANGHONG AGRI TECH

Optical waveguide element, manufacturing method for optical waveguide element, optical deflecting element, and optical switching element

An optical waveguide element capable of being coupled with optical fibers at high coupling efficiency is to be provided. Also an optical waveguide element manufacturing method permitting accurate production of such optical waveguide elements is to be provided. The optical waveguide element is provided with a buffer layer formed over a monocrystalline substrate and an optical waveguide layer formed over the buffer layer, and a recess is formed in the buffer layer along the lengthwise direction of the monocrystalline substrate. The optical waveguide layer is provided to fit into this recess to form a channel optical waveguide. Over the upper face of the optical waveguide layer on the light incidence side and the light emission side, a cladding layer whose refractive index is smaller than that of the optical waveguide layer and whose thickness increases towards the end face(s) in a flared shape is provided in the same width as that of the monocrystalline substrate. By providing the cladding layer whose refractive index is smaller than that of the optical waveguide layer, it is made possible to expand the mode field diameter and substantially reduce the coupling loss between the optical fiber and the optical waveguide element. Further by increasing the thickness of the cladding layer in a flared shape toward the end face(s), it is made possible to gradually compress the mode field diameter and to reduce the optical propagation loss within the optical waveguide.
Owner:EPIPHOTONICS CORP
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