Milliwave transmitting device, milliwave receiving device and milliwave transmission and reception system capable of simplifying wiring of a receiving system of terrestrial broadcasting service and satellite broadcasting service

• US 20050177854A1
• Filed: 04/14/2005
• Published: 08/11/2005
• Est. Priority Date: 02/27/1998
• Status: Abandoned Application

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Sato, Hiroya, Suematsu, Eiji
• Application Number:
  US11/105,458
• Publication Number:
  US 20050177854A1
• Time in Patent Office: Days
• US Class Current: 725/81
• CPC Class Codes: H04H 20/63 to plural spots in a confined site, e.g. MATV [Master Antenna Television]
• CPC Class Codes: H04H 40/90 specially adapted for satellite broadcast receiving
• CPC Class Codes: H04H 60/90 Wireless transmission systems
• CPC Class Codes: H04N 7/106 for domestic distribution
• CPC Class Codes: H04N 7/20 Adaptations for transmission via a GHz frequency band, e.g. via satellite

Abstract

In conventionally receiving satellite broadcasting (BS, CS) and terrestrial broadcasting (VHF, UHF) services, transmitting the services to a plurality of TV receivers in an individual house results in complicated wiring and a community house is also limited in the number of installed TV receivers due to previously setting a distributor and thus requires an additional distributor to be installed when a TV receiver is additionally installed. The milliwave receiving and transmitting system of the present invention allows a broadcast signal to be transmitted and received indoors via indoor, wireless milliwave transmission without using any indoor wiring.

Claims

1. An electrical appliance, comprising a milliwave-signal distributor and relay, said milliwave-signal distributor and relay including a receiving antenna, a distributor, and a plurality of transmitting antenna for changing a radiation direction.

2. The electrical appliance according to claim 1, wherein said milliwave-signal distributor and relay also includes an amplifier.

3. A milliwave-signal relay comprising a receiving antenna having a planar antenna formed on dielectric, transmitting antenna having a planar antenna formed on dielectric, and a blockage with said receiving and transmitting antennas mounted on opposite sides of said blockage and positioned opposite to each other.