Claims
- 1. A system for checking access via a public network to data of a data unit by a subscriber station, comprising:
- (a) the data unit,
- (b) the subscriber station,
- (c) a secured data network connected to the data unit and the subscriber station,
- (d) the public network connected to the data unit and the subscriber station,
- (e) said data unit having an adaptor, said data unit being connected to the secured network via said adaptor, in response to the subscriber station making a dialed call via the secured network, the dialled call being to and received by the data unit, said adaptor causing the data unit to dial the subscriber station via the public network for establishing a connection between the data unit and the subscriber station for data exchange therebetween,
- wherein the data unit is a data bank, and the adaptor causes the data unit to dial without receiving a secret code unique to the subscriber station.
- 2. A system for checking access via a public network to data of a data unit by a subscriber station, comprising:
- (a) the data unit,
- (b) the subscriber station,
- (c) a secured data network connected to the data unit and the subscriber station,
- (d) the public network connected to the data unit and the subscriber station,
- (e) said data unit having an adaptor, said data unit being connected to the secured network via said adaptor, in response to the subscriber station making a dialed call via the secured network, the dialled call being to and received by the data unit, said adaptor causing the data unit to dial the subscriber station via the public network for establishing a connection between the data unit and the subscriber station for data exchange therebetween,
- wherein said data unit has a memory for storing the telephone number of the subscriber station, and
- wherein said data unit has a picture encoder for connection to the public network.
- 3. A method for gathering secured data from remote subscriber stations comprising the following steps:
- at a central subscriber station, initiating a first call over a first point to point line of a first, secured network;
- at a remote subscriber station, receiving the call over a second point to point line of the secured network,
- within the remote subscriber station, communicating, from a first adapter coupled to the second point to point line to a second adapter coupled to a second, public network, that the call has been received;
- within the remote subscriber station, initiating a second call via the public network to the central subscriber station;
- in the central subscriber station, receiving the second call; and
- providing the data from the remote subscriber station to the central subscriber station via the second call.
- 4. The method of claim 15 wherein the data is video data from a plurality of video cameras at the remote station.
- 5. A secured data monitoring system comprising:
- a central subscriber station including:
- means for initiating a first call along a secured network; and
- means for receiving a second call along a public network; and
- at least one remote subscriber station [(T1, T2, and T3)]including:
- means for gathering data;
- means for receiving the first call;
- means for initiating the second call in response to the first call; and
- means for providing the data to the central subscriber station via the second call;
- whereby the central subscriber station monitors data gathering at the remote subscriber station.
Priority Claims (1)
Number |
Date |
Country |
Kind |
41 30 123.4 |
Sep 1991 |
DEX |
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Parent Case Info
This is a continuation of application Ser. No. 07/941,002, filed on Sep. 8, 1992, now abandoned.
US Referenced Citations (11)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0046650 |
Mar 1985 |
JPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
941002 |
Sep 1992 |
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