Patent EP0720397A2 successfully refreshed from Google Patents.
EP0720397A2
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Data communication system and data communication terminal applied thereto
Assignee: Casio Computer Co Ltd
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Filing: 1995-12-27
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Granted: —
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Expires: 2015-12-27
Abstract
Abstract A communication system is designed to exchange messages between a plurality of paging receivers (1A-1D, 1Z)) each having a transmission means. One (1Z) of the paging receivers transmits a question message and a plurality of answer contents to the question message to a paging receiver group constituted by the remaining paging receivers (1A-1D). When answer messages are returned from the paging receiver group which has received the question message and the answer contents, the paging receiver totalizes the answer messages, and displays them on a liquid crystal display panel, together with the question message.
Inventors
- 👤 Yoichi Aoki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 10:11
CPC Classifications
H; H04; H04W; H04W84/00; H04W84/02; H04W84/022; H04W84/025; H04W88/00; H04W88/02; H04W88/022; H04W88/023
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
296 words
A communication system which has a group constituted by a plurality of communication terminals (1A - 1H, 1Z), each including reception means (19, 21 - 24) for receiving ID data for identifying an own data communication terminal, display means (13, 27) for displaying a message, and transmission means (18, 19, 101 - 103) for converting the message into corresponding code data and transmitting the data, and in which data is exchanged between a first communication terminal (1Z) and second communication terminals (1A to 1D) in the group by radio, said first communication terminal (1Z) characterized by comprising transmission means (18, 19, 101 - 103) for converting a message requesting an answer into corresponding code data, and performing batch transmission of the code data, together with first ID data for identifying the own data communication terminal and second ID data for identifying each of said second communication terminals, said second communication terminal (1A to 1D) comprising: first reception means (19, 21 - 24) for receiving the first ID data and the message requesting an answer which are transmitted from said transmission means (18, 19, 101 - 103); first display control means (25) for displaying the message requesting an answer on said display means (13, 27); first preparing means (15 - 17, 26) for preparing an answer to the message requesting an answer; and returning means (18, 19, 101 - 103) for returning the answer together with the first ID data, and said first communication terminal (1Z) further comprising: second reception means (19, 21 - 24) for receiving the answer; first answer memory means (34, 35, 71, 74) for storing a plurality of answers in correspondence with the message requesting an answer; and second display control means (25) for displaying the answer on said display means (13, 27).
Claim 2
Dependent Claim
125 words
A system according to claim 1, characterized in that the message requesting an answer, which is transmitted from said first transmission means (18, 19, 101 - 103) of said first communication terminal (1Z), includes answers corresponding to the message, said first reception means (19, 21 - 24) of said second communication terminal (1A - 1D) receives the first ID data, the message requesting an answer, and the answers transmitted from said first transmission means (18, 19, 101 - 103), said first display control means (25) displays the message requesting an answer and the answers on said display means (13, 27), and said first preparing means (15 - 17, 26) selects an answer from the answers received by said first reception means (19, 21 - 24).
Claim 3
Dependent Claim
63 words
A system according to claim 2, characterized in that said first answer memory means (34) of said first communication terminal (1Z) totalizes and stores a plurality of answers received by said second reception means (19, 21 - 24) in correspondence with the message requesting an answer, and said second display control means (25) displays the totalized answers on said display means (13, 27).
Claim 4
Dependent Claim
101 words
A system according to claim 1, characterized in that said communication terminal (1A - 1H, 1Z) further comprises message memory means (33, 73) for storing the message requesting an answer, and said second communication terminal (1A - 1D) further comprises second transmission means (18, 19, 101 - 103) for causing said message memory means (33, 73) to store the message requesting an answer, which is received by said first reception means (19, 21 - 24), and transmitting the message to third communication terminals (1E - 1H) in the group, together with second ID data for identifying the own data communication terminal.
Claim 5
Dependent Claim
163 words
A system according to claim 4, characterized in that said third communication terminal (1E - 1H) comprises: third reception means (19, 21 - 24) for receiving the second ID data and the message requesting an answer which are transmitted from said second transmission means (18, 91, 101 - 103); second preparing means (15 - 17, 26) for preparing an answer to the message requesting an answer; and second returning means (18, 19, 101 - 103) for returning the prepared answer together with the second ID data, said second communication terminal (1A - 1D) further comprises: fourth reception means (19, 21 - 24) for receiving a plurality of answers; and second answer memory means (34) for totalizing and storing the plurality of answers, and said first returning means (18, 19, 101 - 103) further returns the answer stored in said second answer memory means (34), together with the answer prepared by said first preparing means (15 - 17, 26) and the first ID data.
Claim 6
Dependent Claim
38 words
A system according to claim 1, characterized in that said second display control means (25) of said first communication terminal (1Z) further displays the message requesting an answer on said display means (13, 27), together with the answer.
Claim 7
Dependent Claim
151 words
A system according to claim 6, characterized in that said first communication terminal (1Z) further comprises message memory means (71, 73) for storing a plurality of messages requesting answers, with message numbers being added thereto, said first transmission means (18, 19, 101 - 103) further adds a message number to the message requesting an answer and performs batch transmission of the message requesting an answer, with the message number, together with first ID data for identifying an own data communication termianl and ID data for identifying each communication terminal of said second communication terminals (1A - 1D), said first reception means (19, 21 - 24) of said second communication terminal (1A - 1D) receives the message number together with the first ID data and the message requesting answer, and said returning means (18, 19, 101 - 103) further returns the message number together with the answer and the first ID data.
Claim 8
Dependent Claim
151 words
A system according to claim 1, characterized in that said first communication terminal (1Z) further comprises: subscriber information memory means (31) for storing a plurality of ID data of said second communication terminals (1A - 1D) and pieces of subscriber information of said system; memory means (34, 74) for storing a plurality of ID data of said second communication terminals (1A - 1D) transmitted from said first transmission means (18, 19, 101 - 103); collation means (25) for collating the ID data of said second communication terminals, which are received by said second reception means (19, 21 - 24), with the ID data stored in said memory means (34); and third display control means (25) for reading out subscriber information from said user information memory means (31) in accordance with the collation result obtained by said collation means (25), and causing said display means (13, 27) to display the subscriber information.
Claim 9
Dependent Claim
165 words
A system according to claim 8, characterized in that said memory means (34) of said first communication terminal (1Z) further comprises a flag area (51, 52) for each ID data transmitted from said first transmission means (18, 19, 101 - 103), and said first communication terminal further comprises: memory control means (25) for setting flags in the flag areas (51, 52) when said collation means (25) collates the ID data received by said second reception means (19, 21 - 24) with the ID data stored in said memory means (34), and the ID data coincide with each other; detection means (25) for detecting ID data corresponding to a flag area (51, 52) of said memory means (34) in which no flag is set by said memory control means (25); and notification means (13, 27) for, when said detection means (25) detects ID data for which no flag is set, reading out corresponding subscriber information from said subscriber information memory means (31) and notifying the information.
Claim 10
Dependent Claim
115 words
A system according to claim 9, characterized in that said communication terminal (1A - 1H, 1Z) further comprises message memory means (34, 35, 71, 74) for storing the message requesting an answer and an answer in correspondence with each other, and said first communication terminal (1Z) further comprises retransmission means (18, 19, 101 - 103) for, when ID data corresponding to a flag area in which no flag is set is present in said storage means (34), reading out the message requesting an answer from said message memory means (35), converting the message into corresponding code data, and transmitting the code data to said second communication terminal (1A - 1D) corresponding to the ID data.
Claim 11
Dependent Claim
207 words
A communication terminal (1Z) including reception means (19, 21 - 24) for receiving a radio signal as ID data for identifying an own data communication termianl, display means (13, 27) for displaying a message, and transmission means (18, 19, 101 - 103) for converting the message into corresponding code data and transmitting the data, said communication terminal (1Z) characterized by comprising: first transmission means (18, 19, 101 - 103) for converting a message requesting an answer and answers, each constituted by a plurality of answer messages corresponding to the message requesting an answer and answer numbers corresponding to the answer messages, into corresponding code data, and performing batch transmission of the code data to remaining communication terminals (1A - 1D) in a group to which said communication terminals comprise, together with first ID data for identifying an own data communication termianl and ID data for identifying each of said remaining communication terminals, first reception means (19, 21 - 24) for receiving a plurality of answer numbers returned from said remaining communication terminals (1A - 1D); answer memory means (34) for totalizing and storing the answer numbers; and first display control means (25) for displaying the answer numbers on said display means (13, 27) in a totalized state.
Claim 12
Dependent Claim
154 words
A terminal (1Z) according to claim 11, characterized by further comprising: user information memory means (31) for storing a plurality of ID data of said remaining communication terminals (1A - 1D) and pieces of user information of said remaining communication terminals in correspondence with each other; memory means (34, 74) for storing a plurality of ID data transmitted from said first transmission means (18, 19, 101 - 103) and used to identify said remaining communication terminals (1A - 1D); collation means for collating the ID data of said remaining communication terminals, which are received by said first reception means (19, 21 - 24), with the ID data stored in said memory means (34); and second display control means for reading out user information from said user information memory means (31) in accordance with the collation result obtained by said collation means (25), and causing said display means (13, 27) to display the user information.
Claim 13
Dependent Claim
159 words
A terminal (1Z) according to claim 12, characterized in that said memory means (34) further comprises a flag area (51, 52) for each ID data transmitted from said first transmission means (18, 19, 101 - 103), and said communication terminal further comprises: memory control means (25) for setting flags in the flag areas (51, 52) when said collation means (25) collates the ID data received by said first reception means (19, 21 - 24) with the ID data stored in said memory means (34), and the ID data coincide with each other; detection means (25) for detecting ID data corresponding to a flag area (51, 52) of said memory means (34) in which no flag is set by said memory control means (25); and notification means (13, 27) for, when said detection means (25) detects ID data for which no flag is set, reading out corresponding user information from said user information memory means (31) and notifying the information.
Claim 14
Dependent Claim
99 words
A terminal (1Z) according to claim 12, characterized by further comprising: message memory means (34, 35) for storing the message requesting an answer and an answer in correspondence with each other; and retransmission means (18, 19, 101 - 103) for, when ID data corresponding to a flag area in which no flag is set is present in said storage means (34), reading out the message requesting an answer from said message memory means (35), converting the message into corresponding code data, and transmitting the code data to said remaining communication terminal (1A - 1D) corresponding to the ID data.
Claim 15
Dependent Claim
31 words
A terminal (1Z) according to claim 11, characterized in that said first transmission means (18, 19, 101 - 103) transmits or returns data by outputting the data with a DTMF signal.
Claim 16
Dependent Claim
31 words
A terminal (1Z) according to claim 11, characterized in that said first transmission means (18, 19, 101 - 103) transmits or returns data by outputting the data with a radio signal.
References Cited (Backward Citations)
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