Title:
ディジタルコードレス電話のための複数アンテナホームベース
Document Type and Number:
Japanese Patent JP3989532
Kind Code:
B2
Abstract:
The present invention provides methods for combining antenna diversity (10,12) and gain control (15,19,17) in a communications system using a single chain of receiver characteristics. A number of input parameters related to various characteristics of a received signal are used to determine the quality of the received signal. The antenna diversity and gain control procedures are enabled or disabled based on the signal quality. The antenna diversity procedure estimates the signal level of the non-operational antenna using an infinite impulse response digital filter. The gain control procedure selects one of three gain paths based on the received signal strength.
Inventors:
Light, david
Petra Novic, James E
Baker, Rex El
Neil Kay Riedel
Petra Novic, James E
Baker, Rex El
Neil Kay Riedel
Application Number:
JP51047895A
Publication Date:
October 10, 2007
Filing Date:
September 28, 1994
Export Citation:
Assignee:
SKYWORKS SOLUTIONS,INC.
International Classes:
A63B21/04; H04B7/08; A63B22/04; A63B23/035; A63B23/04; B22F3/16; C22C33/02; C22C38/00; C22C38/24; C22C38/60; H03G3/00; H03G3/30; H04B7/26; H04L1/00; H04L1/02; H04L1/06; H04L1/20; H04L27/08; A63B21/00; A63B21/005
Domestic Patent References:
| JP1119124A | ||||
| JP63232628A | ||||
| JP5191386A | ||||
| JP5022201A | ||||
| JP54131811A | ||||
| JP61174239U |
Foreign References:
| EP0452289A1 |
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai