发明授权
- 专利标题: Method and system for performing an L.sub.2 norm operation
- 专利标题(中): 执行L2范围运算的方法和系统
-
申请号: US519890申请日: 1995-08-28
-
公开(公告)号: US5936871A公开(公告)日: 1999-08-10
- 发明人: Shao Wei Pan , Shay-Ping T. Wang
- 申请人: Shao Wei Pan , Shay-Ping T. Wang
- 申请人地址: IL Schaumburg
- 专利权人: Motorola, Inc.
- 当前专利权人: Motorola, Inc.
- 当前专利权人地址: IL Schaumburg
- 主分类号: G06F17/10
- IPC分类号: G06F17/10 ; G06F7/00
摘要:
A method and system for an L.sub.2 norm operation are provided. A sequence of input signals is converted to a sequence of log signals. The sequence of log signals is distributed through a data pipeline to a plurality of processing elements which effectively multiply each log signal by a factor of two to produce a plurality of term signals. The term signals are then converted to inverse-log signals which are summed to produce a feedback signal. The square-root of the feedback signal is computed to generate an output signal. The log/inverse-log conversions of signals are based on estimating a log/inverse-log function using a second-order polynomial. The L.sub.2 norm operation can be performed using the distance between two vectors.
公开/授权文献
- US5026062A Golf putter with alignment device 公开/授权日:1991-06-25