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EP0309993A2
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EP
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Multimedia mail system
Assignee: Hitachi Ltd
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Filing: 1988-09-27
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Granted: —
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Expires: 2008-09-27
Abstract
Abstract A multimedia mail system utilizes an analog telephone network (1004) and interconnects processors at a voice mail center (1002) and a text mail center (1001), and provides data/voice transmit/receive mode selectors (1003, 1003′) between the analog telephone network and the paired voice mail center and text mail center and between the analog telephone network and paired voice mail terminal and text mail terminal so that voice and text data can be switched during communication to provide a consolidated voice mail/text mail communication system.
Inventors
- 👤 Yoji Shibata
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 22:26
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/50; H04M3/53; H04M3/5307; H04L; H04L51/00; H04L51/07; H04L51/10; H04M3/533; H04M3/53325
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
89 words
A multimedia mail system having a voice mail system and a text mail system utilizing an analog telephone network (1004), comprising: paired voice mail center (1002) and text mail center (1000); a center data/voice transmit/receive mode selector (1003) provided between said paired voice mail center and text mail center, and said analog telephone network (1004); paired voice mail terminal (1007) and text mail terminal (1006); and a terminal data/voice transmit/receive mode selector (1003) provided between said paired voice mail terminal and text mail terminal, and said analog telephone network.
Claim 2
Dependent Claim
89 words
A multimedia mail system having a voice mail system and a text mail system utilizing an analog telephone network (1004), comprising: paired voice mail center (1002) and text mail center (1000); a center data/voice transmit/receive mode selector (1003) provided between said paired voice mail center and text mail center, and said analog telephone network (1004); paired voice mail terminal (1007) and text mail terminal (1006); and a terminal data/voice transmit/receive mode selector (1003) provided between said paired voice mail terminal and text mail terminal, and said analog telephone network.
Claim 3
Dependent Claim
49 words
A multimedia mail system according to Claim 1 wherein said voice mail center has a voice mail center processor, said text mail center has a text mail center processor, and said voice mail center processor and said text mail center processor are interconnected through a multimedia communication control unit.
Claim 4
Dependent Claim
25 words
A multimedia mail system according to Claim 2 wherein said center data/voice transmit/receive mode selector includes a selector (8) and a multimedia voice transmitter/receiver (9′).
Claim 5
Dependent Claim
56 words
A multimedia mail system according to Claim 2 wherein said center data/voice transmit/receive mode selector includes a selector (8) and a multimedia voice transmitter/receiver (9′), said selector (8) is provided between a multimedia text communication control unit and a modem, and said multimedia voice transmitter/receiver is provided between voice A/D and D/A, and a hybrid H.
Claim 6
Dependent Claim
56 words
A multimedia mail system according to Claim 2 wherein a multimedia center processor consolidating a text mail center processor, a voice mail center processor and a multimedia communication control unit is connected to a multimedia text communication control unit, a multimedia voice communication control unit, a text communication control unit and a voice communication control unit.
Claim 7
Dependent Claim
24 words
A multimedia mail system according to Claim 5 wherein the center data/voice transmit/receive mode selector is equivalent to the terminal data/voice transmit/receive mode selector.
References Cited (Backward Citations)
No citation records indexed.
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