EP 0469001 A4 19921202 - PAGING RECEIVER WITH CONTINUOUSLY TUNABLE ANTENNA AND RF AMPLIFIER
Title (en)
PAGING RECEIVER WITH CONTINUOUSLY TUNABLE ANTENNA AND RF AMPLIFIER
Publication
Application
Priority
- US 32954389 A 19890328
- US 38148389 A 19890718
- US 38152789 A 19890718
Abstract (en)
[origin: WO9011653A1] An RF paging receiver which is tunable to channels to receive pages with the pages being transmitted in a plurality of licensed frequency bands with each band containing a plurality of FM channels in which signal strength of pages on received channels in the bands varies as a result of variable antenna gain in accordance with the invention includes a tunable antenna (12, 14) having a reception bandwidth spanning the frequency bands with the antenna being tunable in response to an antenna tuning signal to achieve maximum antenna gain for a received channel in any one of the plurality of licensed frequency bands; an RF tuner (16), coupled to the tunable antenna, for receiving individual channels from the bands in response to varying a receiver tuning signal specifying reception of one of the channels within the plurality of frequency bands, the RF tuner comprising a plurality of RF amplifiers (102, 104, and 106) with each RF amplifier.
IPC 1-7
IPC 8 full level
H03J 7/08 (2006.01); H04B 1/18 (2006.01); H04B 1/26 (2006.01); H04Q 7/18 (2006.01); H04W 88/02 (2009.01)
CPC (source: EP)
H03J 7/08 (2013.01); H04B 1/18 (2013.01); H04W 88/022 (2013.01)
Citation (search report)
- [X] PATENT ABSTRACTS OF JAPAN vol. 5, no. 181 (E-83)(853) 20 November 1981 & JP-A-56 110 331 ( GENERAL DENSHI KOGYO )
- [A] PATENT ABSTRACTS OF JAPAN vol. 10, no. 329 (E-452)(2385) 8 November 1986 & JP-A-61 135 235 ( FUJITSU LTD )
- See references of WO 9011653A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 9011653 A1 19901004; AU 5406290 A 19901022; CA 2049969 A1 19900929; EP 0469001 A1 19920205; EP 0469001 A4 19921202; JP H04505237 A 19920910
DOCDB simple family (application)
US 9001594 W 19900326; AU 5406290 A 19900326; CA 2049969 A 19900326; EP 90906025 A 19900326; JP 50570990 A 19900326