 Radio frequency-controlled telecommunication device |
| The present invention meets this need by providing telecommunications devices and systems which ... |
|
| Portable computer |
| Accordingly, a portable computer capable of wireless data communication without extra peripheral ... |
|
| Method and apparatus for communications monitoring |
| As will be seen, the present invention satisfies the foregoing criteria. Stated generally, the ... |
|
| Call detail reporting for lawful surveillance |
| OF THE PREFERRED EMBODIMENTS The invention involves compiling and processing call associated data, ... |
|
| Testing device for wireless transmission towers |
| Therefore I claim: 1. In a wireless transmission system having a transmission line, an antenna and ... |
|
| Automotive audio system having active controls in reduced power state |
| Accordingly, it is a principal object of the present invention to provide an audio system and a ... |
|
| Radio communication apparatus and control method therefor |
| An object of the present invention is to provide an improved radio communication apparatus which ... |
|
| Contact image sensor for use with a single ended power supply |
| It is one object of the present invention to provide a contact image sensor for use in a fax ... |
|
| Quality-based handover |
| The present invention uses the concept of a distributed handover to minimize interruption of the ... |
|
| Remotely programming a mobile terminal with a home location register address |
| The present invention provides a method and apparatus for programming an address of the associated ... |
|
|
Radio communication system for vehicle
| Details |
Inventors: Tabata, Hajime; Miyamaru, Yukio;
Assignee: Honda Giken Kogyo Kabushiki Kaisha (Tokyo, JP)
Primary Examiner: Hudspeth; David
Assistant Examiner: Nguyen; Huy D
Attorney, Agent or Firm: Birch, Stewart, Kolasch & Birch, LLP
A radio communication system for a vehicle which allows communication not only between fellow passengers but also with a passenger of another vehicle without increasing the scale of a radio communication apparatus to be mounted on a helmet. A radio wave signaled from a radio wave transmitter-receiver of a driver of a vehicle is received by a repeating apparatus of the self-vehicle and amplified by and re-signaled from the repeating apparatus. The radio wave signaled from the repeating apparatus is received by a radio wave transmitter-receiver of a driver of another vehicle and reproduced by a speaker. A radio wave signaled from the radio wave transmitter-receiver of the driver of the vehicle is received by a repeating apparatus of the self-vehicle and amplified by and re-signaled from the repeating apparatus. The radio wave signaled from the repeating apparatus is received by the radio wave transmitter-receiver of a driver of the vehicle and reproduced by a speaker. |
|
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following, the present invention is described in detail with reference to the drawings.
FIGS.
1 and 2 are views schematically illustrating communication methods by a radio communication system for a vehicle to which the present invention is applied, and here, it is described taking communication between four passengers on two vehicles as an example.
On a helmet 70 worn by each passenger, a radio communication apparatus 1 including a microphone 71, a speaker 72 and a radio wave transmitter-receiver 73 is provided.
The radio wave transmitter-receiver 73 has a whip antenna with a contracted coil, which is hereinafter described, built therein, and the antenna is not exposed outside the radio wave transmitter-receiver 73.
The radio wave transmitter-receiver 73 is removably mounted at the center of a rear portion of the helmet 70 through a removable fixing member.
A repeating apparatus 74 for radio communication with the radio wave transmitter-receivers 73 is provided on each vehicle.
The repeating apparatus 74 includes a down-converter not shown that converts an output voltage (for example, 12 V) of a vehicle-carried battery 75 into a predetermined driving voltage (for example, 5 V) and uses the predetermined driving voltage as a driving source.
In such a construction as described above, in order for passengers of the same vehicle, that is, a driver and a fellow passenger, to communicate with each other, as illustrated in FIG.
1, for example, the voice of the driver is detected and converted into a sound signal by the microphone 71 and transferred to the radio wave transmitter-receiver 73.
The radio wave transmitter-receiver 73 of the driver communicates with the radio wave transmitter-receiver 73 of the fellow passenger through the repeating apparatus 74 of the same vehicle.
On the other hand, in order for passengers operating different vehicles to communicate with each other, as illustrated in FIG.
2, a radio wave signaled from the radio wave transmitter-receiver 73A of the driver of the vehicle 1A is received by the repeating apparatus 74A of the same vehicle and amplified by and re-signaled from the repeating apparatus 74A
|
|
Cell Phones 
