BR7804474A - TELECOMMUNICATION CARRIER FREQUENCY SYSTEM - Google Patents
TELECOMMUNICATION CARRIER FREQUENCY SYSTEMInfo
- Publication number
- BR7804474A BR7804474A BR7804474A BR7804474A BR7804474A BR 7804474 A BR7804474 A BR 7804474A BR 7804474 A BR7804474 A BR 7804474A BR 7804474 A BR7804474 A BR 7804474A BR 7804474 A BR7804474 A BR 7804474A
- Authority
- BR
- Brazil
- Prior art keywords
- carrier frequency
- frequency system
- telecommunication carrier
- telecommunication
- frequency
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/04—Frequency-transposition arrangements
- H04J1/045—Filters applied to frequency transposition
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2743977A IT1114144B (en) | 1977-09-12 | 1977-09-12 | TELECOMMUNICATIONS SYSTEM AT GLASS FREQUENCIES |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7804474A true BR7804474A (en) | 1979-04-03 |
Family
ID=11221643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR7804474A BR7804474A (en) | 1977-09-12 | 1978-07-12 | TELECOMMUNICATION CARRIER FREQUENCY SYSTEM |
Country Status (3)
Country | Link |
---|---|
BR (1) | BR7804474A (en) |
DE (1) | DE2839620A1 (en) |
IT (1) | IT1114144B (en) |
-
1977
- 1977-09-12 IT IT2743977A patent/IT1114144B/en active
-
1978
- 1978-07-12 BR BR7804474A patent/BR7804474A/en unknown
- 1978-09-12 DE DE19782839620 patent/DE2839620A1/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
DE2839620A1 (en) | 1979-03-22 |
IT1114144B (en) | 1986-01-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
MX146540A (en) | IMPROVED RADIO FREQUENCY COMMUNICATION SYSTEM | |
BE867238A (en) | CARRIER | |
SE7810439L (en) | COMMUNICATION SYSTEM | |
BR7806061A (en) | TELECOMMUNICATIONS SWITCHING SYSTEM | |
SE7804577L (en) | COMMUNICATION SYSTEM | |
BE863067A (en) | BYPASS - FLUSHING SYSTEM | |
IT1101005B (en) | LOUDSPEAKER SYSTEM | |
SE7808911L (en) | TELECOMMUNICATION SYSTEM | |
IT1174448B (en) | COMMUNICATION SYSTEM VIA SATELITE | |
NL189226C (en) | TELECOMMUNICATIONS SYSTEM. | |
NL7808820A (en) | REGISTRATION CARRIER. | |
SE7809170L (en) | TELECOMMUNICATION SYSTEM | |
SE7803498L (en) | ANTENNA SYSTEM | |
AT377135B (en) | RECEIVER | |
BR7804288A (en) | ORDER TRANSMISSION SYSTEM | |
AT364318B (en) | COMPONENT SYSTEM | |
NO783260L (en) | MICROBOOLGE-DUPLEX RADIO SYSTEM. | |
BE872587A (en) | CARRIER WAVE COMMUNICATION SYSTEMS | |
FI782046A (en) | telecommunications system | |
BE864221A (en) | ALSMEDE DWARSLIGGER HIERVOOR CARRIER | |
NL175775C (en) | TARGETED RADIO CONNECTION SYSTEM. | |
NL7713230A (en) | REGISTRATION CARRIER. | |
BR7808131A (en) | COMMUNICATIONS SYSTEM | |
BR7808354A (en) | COMMUNICATION SYSTEM | |
PL208438A1 (en) | COMMUNICATION SYSTEM |