KR940004487U - Dachannel Underground Radio Broadcasting Repeater - Google Patents

Dachannel Underground Radio Broadcasting Repeater

Info

Publication number
KR940004487U
KR940004487U KR2019920013749U KR920013749U KR940004487U KR 940004487 U KR940004487 U KR 940004487U KR 2019920013749 U KR2019920013749 U KR 2019920013749U KR 920013749 U KR920013749 U KR 920013749U KR 940004487 U KR940004487 U KR 940004487U
Authority
KR
South Korea
Prior art keywords
dachannel
radio broadcasting
underground radio
broadcasting repeater
repeater
Prior art date
Application number
KR2019920013749U
Other languages
Korean (ko)
Other versions
KR950005701Y1 (en
Inventor
양영석
Original Assignee
앙영석
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 앙영석 filed Critical 앙영석
Priority to KR92013749U priority Critical patent/KR950005701Y1/en
Publication of KR940004487U publication Critical patent/KR940004487U/en
Application granted granted Critical
Publication of KR950005701Y1 publication Critical patent/KR950005701Y1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2603—Arrangements for wireless physical layer control
    • H04B7/2606—Arrangements for base station coverage control, e.g. by using relays in tunnels

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
KR92013749U 1992-07-25 1992-07-25 Relay for multi channel wireless broadcast underground KR950005701Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR92013749U KR950005701Y1 (en) 1992-07-25 1992-07-25 Relay for multi channel wireless broadcast underground

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR92013749U KR950005701Y1 (en) 1992-07-25 1992-07-25 Relay for multi channel wireless broadcast underground

Publications (2)

Publication Number Publication Date
KR940004487U true KR940004487U (en) 1994-02-24
KR950005701Y1 KR950005701Y1 (en) 1995-07-20

Family

ID=19337297

Family Applications (1)

Application Number Title Priority Date Filing Date
KR92013749U KR950005701Y1 (en) 1992-07-25 1992-07-25 Relay for multi channel wireless broadcast underground

Country Status (1)

Country Link
KR (1) KR950005701Y1 (en)

Also Published As

Publication number Publication date
KR950005701Y1 (en) 1995-07-20

Similar Documents

Publication Publication Date Title
DE59308734D1 (en) BROADCASTING RECEIVER
DE69317371D1 (en) RDS radio receiver
DE69432004D1 (en) radio receiver
DE69429696D1 (en) Radio communication system
DE69324771D1 (en) Mobile receiver for satellite radio
DE69324409D1 (en) Mobile radio systems
DE69327227D1 (en) Antenna system
DE59207560D1 (en) RDS radio receiver
FI943927A0 (en) radio system
DE69329872D1 (en) Radio transmitter / receiver
FI935281A0 (en) Basstation Foer cellindelade freekenshoppande TDMA radio communication system
DE69630755D1 (en) radio station
DE69429302D1 (en) radio receiver
DE69319297D1 (en) receiver
DE69428184D1 (en) RADIO RECEIVER
DE69522050D1 (en) AM radio receiver
DE69431699D1 (en) radio receiver
DE69530359D1 (en) radio receiver
ATA86693A (en) CELLULAR TIME SLOT RADIO SYSTEM
DE69315097D1 (en) Radio communication system
DE69215737D1 (en) Radio reception systems
DE69518063D1 (en) RADIO RECEIVER
DK0692163T3 (en) Radio repeater
KR920020397U (en) Underground broadcasting repeater
KR940004487U (en) Dachannel Underground Radio Broadcasting Repeater

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
AMND Amendment
E601 Decision to refuse application
J2X1 Appeal (before the patent court)

Free format text: APPEAL AGAINST DECISION TO DECLINE REFUSAL

AMND Amendment
B701 Decision to grant
REGI Registration of establishment
J204 Request for invalidation trial [patent]
J2X1 Appeal (before the patent court)

Free format text: INVALIDATION IN ENTIRETY

J2X2 Appeal (before the supreme court)

Free format text: APPEAL BEFORE THE SUPREME COURT FOR INVALIDATION IN ENTIRETY REQUESTED 20001019

Effective date: 20001020

J302 Written judgement (patent court)

Free format text: JUDGMENT (PATENT COURT) FOR INVALIDATION IN ENTIRETY REQUESTED 19971010

Effective date: 19980917

J206 Request for trial to confirm the scope of a patent right
J301 Trial decision

Free format text: TRIAL DECISION FOR CONFIRMATION OF THE SCOPE OF RIGHT_AFFIRMATIVE REQUESTED 20040429

Effective date: 20050728

J2X1 Appeal (before the patent court)

Free format text: CONFIRMATION OF THE SCOPE OF RIGHT_AFFIRMATIVE

J302 Written judgement (patent court)

Free format text: JUDGMENT (PATENT COURT) FOR CONFIRMATION OF THE SCOPE OF RIGHT_AFFIRMATIVE REQUESTED 20050905

Effective date: 20060719

FPAY Annual fee payment

Payment date: 20070418

Year of fee payment: 13

EXPY Expiration of term