EP0239810A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Pager receiver helpful for effective use of call numbers
Assignee: NEC Corp
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Filing: 1987-03-03
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Granted: —
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Expires: 2007-03-03
Abstract
Abstract In a pager receiver operable in response to an incoming signal including a specific call number signal preassigned to the pager receiver, a directory number signal of a calling subscriber follows the specific call number signal. The directory number signal is detected by a directory number detector (l7) after detection of the specific call number signal and is converted into a corresponding dial tone signal by a dial tone generator (2l). The dial tone signal is automatically sent through a telephone set to the calling subscriber in response to closure of a switch (l9). Thus, the pager receiver may be of a tone-only type and can call back unspecific persons even when the directory number signal is not displayed on a display unit. A particular symbol may be included in the directory number signal so as to distinguish the directory number signal from a usual message signal.
Inventors
- 👤 Yoichiro Minami
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 23:37
CPC Classifications
H; H04; H04Q; H04Q9/00; H04W; H04W88/00; H04W88/02; H04W88/022; G; G08; G08B; G08B3/00; G08B3/10; G08B3/1008; G08B3/1016; G08B3/1025; G08B3/1066
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
191 words
A pager receiver capable of responding to an incoming signal to produce a receiver output signal when said incoming signal includes a specific call number signal preassigned to said pager receiver, said specific call number signal being followed by said incoming signal by a directory number signal carrying a directory number assigned to a calling subscriber, wherein the pager receiver comprises: detecting means responsive to said incoming signal for detecting said specific call number signal and said directory number signal to produce a detection signal and a reproduction of said directory number signal, said detection signal being representative of detection of said specific call number signal; storing means coupled to said detecting means for storing said reproduction of the directory number signal to produce a stored directory number signal; converting means coupled to said storing means for converting said stored directory number signal into a dial tone signal corresponding to said stored directory number signal; and signal producing means coupled to said detecting means and said converting means for producing said detection signal and said dial tone signal as a first and a second part of said receiver output signal, respectively.
Claim 2
Dependent Claim
191 words
A pager receiver capable of responding to an incoming signal to produce a receiver output signal when said incoming signal includes a specific call number signal preassigned to said pager receiver, said specific call number signal being followed by said incoming signal by a directory number signal carrying a directory number assigned to a calling subscriber, wherein the pager receiver comprises: detecting means responsive to said incoming signal for detecting said specific call number signal and said directory number signal to produce a detection signal and a reproduction of said directory number signal, said detection signal being representative of detection of said specific call number signal; storing means coupled to said detecting means for storing said reproduction of the directory number signal to produce a stored directory number signal; converting means coupled to said storing means for converting said stored directory number signal into a dial tone signal corresponding to said stored directory number signal; and signal producing means coupled to said detecting means and said converting means for producing said detection signal and said dial tone signal as a first and a second part of said receiver output signal, respectively.
Claim 3
Dependent Claim
77 words
A pager receiver as claimed in Claim l, wherein said signal producing means comprises: coupling means for coupling said detecting means to said converting means to produce a combination of said detection signal and said dial tone signal; and tone generating means responsive to said combination of the detection signal and the dial tone signal for generating a first and a second tone signal as said first and said second parts of the receiver output signal, respectively.
Claim 4
Dependent Claim
76 words
A pager receiver as claimed in Claim l, wherein said signal producing means comprises: first tone generating means coupled to said detecting means and responsive to said detection signal for generating a first tone signal as said first part of the receiver output signal; and second tone generating means coupled to said converting means and responsive to said dial tone signal for generating a second tone signal as said second part of the receiver output signal.
Claim 5
Dependent Claim
115 words
A pager receiver as claimed in Claims l to 3, wherein said directory number signal further carries an identification signal for distinguishing said directory number signal from a message signal; said detecting means comprising: a first detection part responsive to said incoming signal for detecting said specific call number signal to produce said detection signal; and a second detection part responsive to said incoming signal for detecting said identification signal to produce an additional detection signal representative of detection of said identification signal; and a production part coupled to said second detection part for producing said reproduction of the directory number signal only when said additional detection signal is produced in said second detection part.
Claim 6
Dependent Claim
75 words
A pager receiver as claimed in Claims l to 3, said pager receiver responding to the incoming signal including no message signal, wherein said detecting means comprises: first means responsive to the incoming signal for detecting said specific call number signal to produce said detection signal; and second means responsive to the incoming signal and coupled to said first means for detecting said directory number signal to produce said reproduction of the directory number signal.
References Cited (Backward Citations)
No citation records indexed.
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