Communication apparatus
First Claim
1. A communication apparatus for use as a terminal in a communication network including a plurality of terminals, wherein one of the plurality of terminals acts as a master and at least one other one of the plurality of terminals acts as a slave to execute communication between the terminals, the communication apparatus comprising:
- detection means for detecting a first signal that is sent from the terminal acting as the master;
halt means for halting the detection means upon non-detection of the first signal during a first time period;
transmission means for transmitting a second signal in order to inquiry or page the terminals;
start means for causing the transmission means to start transmission of the second signal, upon passage of a second time period from the halt of the detection means;
request means for issuing a request for a master/slave role switch to a given one of the terminals that responds to the second signal transmitted by the transmission means; and
switch means for executing the master/slave role switch upon acceptance of the request.
2 Assignments
0 Petitions
Accused Products
Abstract
If a control section fails to detect a connectable device by Inquiry/Page_Scan before an OFF timer times out, the control section halts the Inquiry/Page_Scan. The control section keeps this state until time-out of an ON timer. Upon time-out of the ON timer, the control section starts Inquiry/Page. The control section issues a request for a role switch to the connectable device detected by Inquiry/Page. Upon acceptance of the request, the control section effects a master/slave role switch.
72 Citations
10 Claims
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1. A communication apparatus for use as a terminal in a communication network including a plurality of terminals, wherein one of the plurality of terminals acts as a master and at least one other one of the plurality of terminals acts as a slave to execute communication between the terminals, the communication apparatus comprising:
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detection means for detecting a first signal that is sent from the terminal acting as the master; halt means for halting the detection means upon non-detection of the first signal during a first time period; transmission means for transmitting a second signal in order to inquiry or page the terminals; start means for causing the transmission means to start transmission of the second signal, upon passage of a second time period from the halt of the detection means; request means for issuing a request for a master/slave role switch to a given one of the terminals that responds to the second signal transmitted by the transmission means; and switch means for executing the master/slave role switch upon acceptance of the request. - View Dependent Claims (2, 3, 4, 5)
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6. A communication apparatus for use as a terminal in a communication network including a plurality of terminals, wherein one of the plurality of terminals acts as a master and at least one other one of the plurality of terminals acts as a slave to execute communication between the terminals, the communication apparatus comprising:
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a detection unit configured to detect a first signal that is sent from the terminal acting as the master; a halt unit configured to halt the detection unit upon non-detection of the first signal during a first time period; a transmission unit configured to transmit a second signal in order to inquiry or page the terminals; a start unit configured to cause the transmission unit to start transmission of the second signal, upon passage of a second time period from the halt of the detection unit; a request unit configured to issue a request for a master/slave role switch to a given one of the terminals that responds to the second signal transmitted by the transmission unit; and a switch unit configured to execute the master/slave role switch upon acceptance of the request. - View Dependent Claims (7, 8, 9, 10)
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Specification