公开(公告)号：US20110258521A1

公开(公告)日：2011-10-20

申请号：US12715194

申请日：2010-03-01

Applicant: Ming Yang ,  Juntan Zhang ,  Zhiyong Wu ,  Fengwen Sun

Inventor： Ming Yang ,  Juntan Zhang ,  Zhiyong Wu ,  Fengwen Sun

IPC: H03M13/27 ,  G06F11/10

CPC classification number: H03M13/255 ,  H03M13/1108 ,  H03M13/1165 ,  H03M13/43 ,  H03M13/6527 ,  H03M13/6533 ,  H03M13/6544

Abstract: An approach is provided for interleaving low density parity check (LDPC) encoded bits in QPSK/8PSK modulation systems. By assigning the bits determining modulation symbols based on different bit degrees, one can efficiently find the desirable tradeoff between error performance and error floor provided by the LDPC codes in use.

Abstract translation: 提供了一种用于在QPSK / 8PSK调制系统中交织低密度奇偶校验（LDPC）编码比特的方法。 通过分配基于不同比特度的确定调制符号的比特，可以有效地找到由正在使用的LDPC码提供的错误性能与错误帧之间的期望权衡。

公开(公告)号：US20060143859A1

公开(公告)日：2006-07-06

申请号：US11320724

申请日：2005-12-30

Applicant: Zhiyong Wu

Inventor： Zhiyong Wu

IPC: E05D7/04

CPC classification number: E05D7/0415 ,  E05D2007/0469 ,  E05D2007/0484 ,  E05Y2900/20 ,  Y10T16/53225 ,  Y10T16/5324 ,  Y10T16/54033 ,  Y10T16/554

Abstract: A three-dimension adjustable hidden furniture door hinge is designed to include a travel member that can be fixed onto the door, an adjustable member that can be fixed onto the door frame and an arm segment connects these two members, the adjustable member includes three tiers of boards, a base board in the lower tier can be fixed onto a door frame, a middle board in the middle tier that can slide up and down on top of the base board, and an adjustable board in the upper tier on top of the middle board that can slide back and forth; there are matching grooves and directional tabs formed on the boards; three cam screws are used to provide up-down, back-forth, and left-right position adjustment, there is no need to loosen up other screws, the entire adjustment process is simple, quickly and energy saving.