Abstract:
본발명의실시예에따른임피던스매칭소자는기판상에제 1 방향으로연장하도록배치되고상기제 1 방향에수직인제 2 방향으로폭을갖는테이퍼드스트립라인, 및입력신호가분기되도록테이퍼드스트립라인에연결되는복수의스트립라인들을포함할수 있다. 테이퍼드스트립라인은서로동일한길이를갖고서로다른폭을갖는제 1 세그먼트내지제 n 세그먼트를포함할수 있다. 본발명의실시예에따르면, 입력신호가분기됨으로써발생하는임피던스부정합문제를해결할수 있다.
Abstract:
Disclosed are a method and an apparatus for decoding information about a transform coefficient level by updating a binary parameter. A method for decoding a video includes obtaining a bit stream corresponding to information about a current transform coefficient level by performing arithmetic decoding based on a context model for the bit stream; determining a current binary parameter by updating or maintaining a previous binary parameter based on a result of comparing a predetermined threshold value obtained based on the previous binary parameter with a size of a previous binary transform coefficient; obtaining the information about the current transform coefficient level by inverse binarization of the bit stream using the current binary parameter; and generating a size of the current transform coefficient by using the information about the current transform coefficient level. When the previous transform coefficient is greater than the predetermined threshold value, the value obtained by adding ′1′ to the previous binary parameter is determined as the current binary parameter.
Abstract:
According to an embodiment of the present invention, an optical pickup apparatus comprises: a light transmitting system facing a multilayer optical disk; a light source system to provide light to the light transmitting system; a light receiving system including detection units to detect the light reflected from the multilayer optical disk; and a stray light control unit to prevent stray light generated by the multilayer optical disk from reaching the detection units. The stray light control unit is disposed between the light source system and the light receiving system. The stray light control unit includes: a light transmitting portion which passes through the light reflected from the multilayer optical disk and the stray light; a light diffraction portion which diffracts the light reflected from the multilayer optical disk and the stray light; and a light blocking portion which blocks the light reflected from the multilayer optical disk and the stray light. The light diffraction portion is extended with a predetermined width along one direction of the light transmitting portion.
Abstract:
An optical disk and an optical disk reproduction device for reproducing the same are provided. The optical disk including at least one layer comprises an information storage area for storing information about the optical disk and a data area for storing data, wherein the information storage area stores information about the amount of reflection and thickness of each of the layers and transmission speed information about a plurality of areas constituting the data area.