Multiplex communications – Communication over free space – Repeater
Reexamination Certificate
1999-12-08
2003-05-06
Maung, Nay (Department: 2681)
Multiplex communications
Communication over free space
Repeater
C370S315000, C455S011100, C455S414200
Reexamination Certificate
active
06560208
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention is related to a wireless repeating apparatus, and more specifically, to a wireless repeating apparatus for receiving digital information by way of electromagnetic waves and for transmitting the received digital information to another apparatus by way of electromagnetic waves.
2. Description of the Related Art
Very recently, various models of wireless repeating (relaying) apparatuses capable of repeating (relaying) digital information in the form of electromagnetic waves have been developed by lots of manufactures and are commercially available.
FIG. 6
is a schematic block diagram for indicating an arrangement of one conventional wireless repeating apparatus. In
FIG. 6
, reference numerals
108
a
to
108
c
show conventional repeating apparatuses, and reference numeral
102
denotes an information transmitting/receiving unit. The information transmitting/receiving unit
102
receives information transmitted from the wireless repeating apparatus
108
a
by way of electromagnetic waves, and also transmits the received information to another wireless repeating apparatus
108
c
by way of electromagnetic waves.
Reference numeral
107
represents an information temporarily storing unit. The information temporarily storing unit
107
temporarily stores thereinto the information received by the information transmitting/receiving unit
102
, and outputs the temporarily stored information to the information transmitting/receiving unit
102
when information is transmitted. Reference numeral
104
indicates a channel switching unit for switching channels of electromagnetic waves to be transmitted/received. Also, reference numeral
105
represents a control unit for controlling an entire arrangement of the wireless repeating apparatus
108
b
to provide a function as the wireless repeating apparatus. Reference numeral
106
indicates an external connecting unit for connecting an information processing apparatus
110
such as a personal computer to the information temporarily storing unit
107
so as to supply/receive information between the information processing apparatus
110
and the information temporarily storing unit
107
. Each of the wireless repeating apparatuses
108
a
to
108
c
is arranged by the information transmitting/receiving unit
102
, the channel switching unit
104
, the control unit
105
, the external connecting unit
106
, and the information temporarily storing unit
107
.
Next, the operation of these wireless repeating apparatuses
108
a
to
108
c
will now be explained. In this case, the following operation case is first exemplified. That is, the wireless repeating apparatus
108
b
receives information which is transmitted from the wireless repeating apparatus
108
a
provided on the transmission side by way of electromagnetic waves, and then transmits this received information to another wireless repeating apparatus
108
c
as the reception side in the form of electromagnetic waves. It should be noted that each of the wireless repeating apparatuses
108
a
to
108
c
repeats electromagnetic waves. The respective wireless repeating apparatuses
108
a
to
108
c
are connected to the information processing apparatus
110
and are operable as wireless transmitters/receivers.
In the case that digital information produced from the information processing apparatus
110
is received via the wireless repeating apparatus
108
a
by the information transmitting/receiving unit
102
by way of electromagnetic waves, the control unit
105
of the wireless repeating apparatus
108
b
instructs the information transmitting/receiving unit
102
to receive the electromagnetic waves transmitted by the subject wireless repeating apparatus
108
a
. In response to this instruction, the information transmitting/receiving unit
102
is brought into such a condition that this information transmitting/receiving unit
102
waits for information in a channel designated by the channel switching unit
104
.
When the information transmitting/receiving unit
102
of the wireless repeating apparatus
108
b
receives the electromagnetic waves transmitted from the wireless repeating apparatus
108
a
, the information processing apparatus
110
dispatches digital information to the wireless repeating apparatus
108
a
. The wireless repeating apparatus
108
a
transmits the received information to the information transmitting/receiving unit
102
of the wireless repeating apparatus
108
b
by way of electromagnetic waves. As explained above, the digital information transferred by way of the electromagnetic waves of the wireless repeating apparatus
108
a
is received by the information transmitting/receiving unit
102
of the wireless repeating apparatus
108
b
and then is stored in the information temporarily storing unit
107
.
When an amount of information temporarily stored in the information temporarily storing unit
107
exceeds a predetermined amount, the control unit
105
instructs the information transmitting/receiving unit
102
to transmit the information stored in the information temporarily storing unit
107
to another wireless repeating apparatus
108
c
. Then, in the case that the information transmitting/receiving unit
102
of the wireless repeating apparatus
108
b
receives the transmission instruction issued from the control unit
105
, this information transmitting/receiving unit
102
commences the transmission to the wireless repeating apparatus
108
c
in the channel designated by the channel switching unit
104
. Subsequently, the wireless repeating apparatus
108
b
repeatedly performs the receiving/transmitting operations of the digital information until the transmission of the digital information dispatched from the information processing apparatus
110
is accomplished.
In the case that the wireless repeating apparatus
108
a
is connected to the information processing apparatus
110
, this wireless repeating apparatus
108
a
functions as either a wireless transmitting apparatus or a wireless receiving apparatus. When the wireless repeating apparatus
108
a
functions as the wireless transmitting apparatus, the transmission information is supplied from the information processing apparatus
110
via the external connecting unit
106
of the wireless repeating apparatus
108
a
to the information temporarily storing unit
107
of the wireless repeating apparatus
108
a
so as to be stored into this information temporarily storing unit
107
.
In such a case that an amount of information stored in the information temporarily storing unit
107
of the wireless repeating apparatus
108
a
exceeds a predetermined amount, the control unit
105
of the wireless repeating apparatus
108
a
instructs the information transmitting/receiving unit
102
to transmit the information stored in the information temporarily storing unit
107
to the subject wireless repeating apparatus
108
b.
Then, in the case that the information transmitting/receiving unit
102
of the wireless repeating apparatus
108
a
receives the transmission instruction issued from the control unit
105
, this information transmitting/receiving unit
102
commences the transmission in the channel designated by the channel switching unit
104
of the wireless repeating apparatus
108
a
. Subsequently, the wireless repeating apparatus
108
a
repeatedly performs the receiving/transmitting operations of the digital information until the transmission of the digital information produced from the information processing apparatus
110
is accomplished, and also all of the information stored in the information temporarily storing unit
107
of the wireless repeating apparatus
108
a
have been completely transmitted.
When the wireless repeating apparatus
108
a
functions as the wireless receiving apparatus, the control unit
105
of the wireless repeating apparatus
108
a
instructs the information transmitting/receiving unit
102
of the wireless repeating apparatus
108
a
to receive the electromagnetic waves transmitted by the su
Contee Joy
Leydig , Voit & Mayer, Ltd.
Maung Nay
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