EP 0727112 A1 19960821 - DUAL-MODE WIRELESS UNIT WITH TWO SPREAD-SPECTRUM FREQUENCY BANDS
Title (en)
DUAL-MODE WIRELESS UNIT WITH TWO SPREAD-SPECTRUM FREQUENCY BANDS
Title (de)
FUNKSYSTEM MIT ZWEI BETRIEBSARTEN UND ZWEI SPREIZSPEKTRUMFREQUENZBÄNDERN
Title (fr)
UNITE BIMODE SANS FIL A DEUX BANDES DE FREQUENCES A ETALEMENT DE SPECTRE
Publication
Application
Priority
- US 9412464 W 19941031
- US 14649293 A 19931101
Abstract (en)
[origin: WO9512925A1] The invention provides a dual-band spread-spectrum modulator (101, 103, 105) which uses a single, relatively narrow, synthesizer to serve two operating frequency bands (102, 104). In the lower frequency band, the synthesizer may operate in a high-side injection mode, while in the higher frequency range, the synthesizer may operate in a low-side injection mode. In a preferred embodiment, the lower frequency range may comprise about 1850 to 1990 megahertz, while the higher frequency range may comprise about 2400 to 2483.5 megahertz.
IPC 1-7
IPC 8 full level
H04B 1/40 (2006.01); H04B 1/69 (2011.01); H04B 7/26 (2006.01); H04J 13/00 (2011.01); H04L 1/00 (2006.01); H04L 27/12 (2006.01); H04Q 7/32 (2006.01)
CPC (source: EP KR)
H04B 1/005 (2013.01 - EP); H04B 1/0057 (2013.01 - EP); H04B 1/406 (2013.01 - EP); H04B 1/69 (2013.01 - EP); H04B 7/2634 (2013.01 - EP); H04J 13/00 (2013.01 - EP); H04J 13/10 (2013.01 - KR); H04L 1/0001 (2013.01 - EP); H04L 27/12 (2013.01 - EP); H04W 88/06 (2013.01 - KR)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9512925 A1 19950511; CA 2175085 A1 19950511; EP 0727112 A1 19960821; EP 0727112 A4 19980121; IL 111471 A0 19941229; IL 111471 A 19980615; JP 3692140 B2 20050907; JP H09504669 A 19970506; KR 960706234 A 19961108
DOCDB simple family (application)
US 9412464 W 19941031; CA 2175085 A 19941031; EP 95908412 A 19941031; IL 11147194 A 19941031; JP 51332595 A 19941031; KR 19960702229 A 19960430