US5856787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio pager
Assignee: NEC Corp
•
Filing: 1996-06-25
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Granted: 1999-01-05
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Expires: 2016-06-25
Abstract
Abstract When a radio selective calling receiver receives a special code commanding the deletion of a received message, it deletes a message designated by a control signal following the special code.
Inventors
- 👤 Masahiro Ikka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:22
CPC Classifications
H; H04; H04B; H04B5/00; G; G08; G08B; G08B5/00; G08B5/22; G08B5/222; G08B5/223; G08B5/224; G08B5/227
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
99 words
A radio selective calling receiver comprising: receiving means for receiving a paging signal sent from a caller; storing means for storing a message included in the paging signal; and deleting means for deleting, when a special code commanding message deletion is included in the paging signal, a message stored in said storing means and corresponding to a message designated by a control signal following said special code, said control signal being one of characters of the message to be deleted, a message number of the message to be deleted, and a receipt time of the message to be deleted.
Claim 2
Dependent Claim
99 words
A radio selective calling receiver comprising: receiving means for receiving a paging signal sent from a caller; storing means for storing a message included in the paging signal; and deleting means for deleting, when a special code commanding message deletion is included in the paging signal, a message stored in said storing means and corresponding to a message designated by a control signal following said special code, said control signal being one of characters of the message to be deleted, a message number of the message to be deleted, and a receipt time of the message to be deleted.
Claim 3
Dependent Claim
42 words
A radio selective calling receiver as claimed in claim 1, wherein said special code is indicative of a kind of the message deletion, said radio pager further comprising decision means for determining the kind of message deletion indicated by said special code.
Claim 4
Dependent Claim
65 words
A radio selective calling receiver as claimed in claim 1, wherein said deleting means comprises: decision means for determining whether or not a plurality of messages to be deleted exist; and alarm information adding means for discontinuing, when a plurality of messages to be deleted exist, the message deletion and adding alarm information representative of receipt of a deletion command to said plurality of messages.
Claim 5
Dependent Claim
28 words
A radio selective calling receiver as claimed in claim 1, wherein said deleting means further comprises setting means for setting whether or not to execute message deletion beforehand.
Claim 6
Dependent Claim
77 words
A radio selective calling receiver as claimed in claim 4, wherein said deleting means further comprises alarm information adding means for discontinuing, when a plurality of massages to be deleted exist, the message deletion, and for adding alarm information, representative of receipt of a deletion command, to said plurality of messages, and wherein said alarm information adding means adds, when said setting means is so set as not to allow deletion to be executed, said alarm information.
Claim 7
Dependent Claim
51 words
A radio selective calling receiver as claimed in claim 1 further comprising timing means, wherein said storing means stores a time of receipt at which said receiving means receives the paging signal, and wherein said control signal designates the message to be deleted on the basis of said time of receipt.
Claim 8
Dependent Claim
34 words
A radio selective calling receiver as claimed in claim 6, further comprising searching means for searching messages received at and around said time of receipt in order to detect a message to be deleted.
Claim 9
Dependent Claim
41 words
A radio selective calling receiver as claimed in claim 1, wherein said storing means stores a message number included in the paging signal, and wherein said control signal designates a message to be deleted on the basis of said message number.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-01-04 | 2002-07-06 | 2003-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-01-04 | 2006-07-06 | 2007-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-01-04 | 2010-07-06 | 2011-01-05 | $7700.00 | Window Closed / Lapsed |