WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 |
PATENTSCOPE
Search International and National Patent Collections
World Intellectual Property Organization
Search
Browse
Translate
Options
News
Login
Help
1. (WO1994027392) A COMMUNICATION DEVICE FOR COMPUTER NETWORKS, PARTICULARLY OF THE CORDLESS TYPE
PCT Biblio. Data
Description
Claims
National Phase
Notices
Drawings
Documents
Latest bibliographic data on file with the International Bureau   
Pub. No.:    WO/1994/027392    International Application No.:    PCT/EP1994/001426
Publication Date: 24.11.1994 International Filing Date: 05.05.1994
Chapter 2 Demand Filed:    22.11.1994    
IPC:
H04B 1/40 (2006.01), H04L 27/20 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
1
Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
38
Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
40
Circuits
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27
Modulated-carrier systems
18
Phase-modulated carrier systems, i.e. using phase-shift keying
20
Modulator circuits; Transmitter circuits
Applicants: SIXTEL S.P.A. [IT/IT]; Via Jervis, 77, I-10015 Ivrea (IT) (For All Designated States Except US).
BUD, Andrew [GB/IT]; (IT) (For US Only).
CAMPI, Luciano [IT/IT]; (IT) (For US Only).
STRAULLU, Franco [IT/IT]; (IT) (For US Only)
Inventors: BUD, Andrew; (IT).
CAMPI, Luciano; (IT).
STRAULLU, Franco; (IT)
Agent: MARCHITELLI, Mauro; Jacobacci-Casetta & Perani S.p.A., Via Alfieri, 17, I-10121 Torino (IT)
Priority Data:
TO93A000330 12.05.1993 IT
Title (EN) A COMMUNICATION DEVICE FOR COMPUTER NETWORKS, PARTICULARLY OF THE CORDLESS TYPE
(FR) DISPOSITIF DE COMMUNICATION POUR RESEAUX INFORMATIQUES, EN PARTICULIER DU TYPE SANS FIL
Abstract: front page image
(EN)A communication device (1) for computer local networks of the cordless type uses a modulator (MOD) able to perform FSK modulation on the data (DDI) to be transmitted, with optimum characteristics thanks to a digital switch (SW) controlled by the data (DDI) which commutes during transmission between two fixed frequencies received from a quartz oscillator, in association with a filter of the surface acoustic wave type (SAW). The device (1) permits a significant improvement in circuit integration and is simple and of low cost.
(FR)Un dispositif de communication (1) destiné à des réseaux informatiques locaux du type sans fil, comprend l'utilisation d'un modulateur (MOD) apte à effectuer une modulation par déplacement de fréquence avec des caractéristiques optimales (MDF) sur les données (DDI) à transmettre, grâce à un commutateur numérique (SW), commandé par ces données (DDI), qui commute au cours de la transmission entre deux fréquences fixes reçues à partir de l'oscillateur à quartz, en association avec un filtre du type à onde acoustique de surface (SAW). Ce dispositif (1) permet d'obtenir un perfectionnement significatif dans l'intégration des circuits tout en étant simple et peu coûteux.
Designated States: BY, CZ, FI, HU, NO, RU, UA, US.
European Patent Office (EPO) (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Publication Language: English (EN)
Filing Language: English (EN)