1. A settlement management device which can update value information stored in a data storage device through a client device, comprising:
a transmitting part transmitting a request for credit information;
a receiving part receiving a response to the request for credit information;
an encryption part subjecting value update information of the data storage device to an encryption processing by using a common key shared by the settlement management device and the data storage device based on the response to the request for credit information; and
a transmitting part transmitting the value update information subjected to the encryption processing to the client device and, wherein the client device inputs the received value update information to the data storage device, and for transmitting settlement completion information to a the client device.
2. A settlement management device according to claim 1, wherein the settlement management device creates a signature indicating validity of the value update information by using a private key of the settlement management device, and transmits the value update information with the signature to the client device, and wherein the client device checks validity of the signature received from the settlement management device by using a public key corresponding to the private key of the settlement management device, and then inputs the value update information to the data storage device.
3. A computer program, encoded on a computer readable medium, the computer program including executable instruction that when executed cause a computer to function as a settlement management device updating value information stored in a data storage device through a client device, wherein the settlement management device transmits a request for credit information, receives a response to the request for credit information, subjects value update information of the data storage device to an encryption processing by using a common key shared by the settlement management device and the data storage device based on the response to the request for credit information, and transmits the value update information subjected to the encryption processing to the client device, and wherein the client device inputs the received value update information to the data storage device, and transmits settlement completion information to the client device.
4. A computer readable storage medium storing a computer program for causing a computer to function as a settlement management device which can update value information stored in a data storage device through a client device, wherein the settlement management device transmits a request for credit information, receives a response to the request for credit information, subjects value update information of the data storage device to an encryption processing by using a common key shared by the settlement management device and the data storage device based on the response to the request for credit information, and transmits the value update information subjected to the encryption processing to the client device, and wherein the client device inputs the received value update information to the client device.
5. A settlement management device according to claim 1, wherein the settlement completion information includes a payment completion screen presented to the client device.
6. A computer program according to claim 3, further comprising causing the computer to transmit settlement completion information in response to a request by the client device.
7. A computer readable storage medium according to claim 4, further comprising causing the computer to transmit settlement completion information in response to a request by the client device.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. Method for producing back-foamed air-permeable textile products comprising the steps of:
inserting the textile product into a mold;
closing the mold and introducing reactants to form the foam;
allowing the reactants to react to create a foam, with a simultaneous decrease in pressure created during the reaction via at least one expansion orifice in the mold half turned away from the inserted textile product;
controlling the decrease in pressure in such a way that none of the reactants nor the foam created by the reaction penetrates the textile product; and
regulating the degree of opening of a valve associated with the expansion orifice toward a reduced pressure source.
2. Method according to claim 1, comprising regulating the degree of opening of the valve associated with the expansion orifice as a function of the progress of the reaction in the mold.
3. Method according to claim 2, comprising detecting a pressure characteristic at the expansion orifice and regulating the degree of opening as a function thereof and feedback of product-typical parameters.
4. Device for carrying out the method according to claim 1 comprising:
a mold with an upper mold region;
a suction orifice for evacuation;
a system for ventilating the mold; and
at least one expansion orifice at a predetermined position in an upper portion of the upper mold region, which the expansion orifice is associated with a control valve which can be activated in such a way that, as a function of product parameters and detected actual values, a decrease in the pressure produced during the reaction of the reactants takes place in the mold in such a way that none of the reactants themselves nor the foam produced by the reaction thereof can penetrate an air-permeable textile product inserted into the mold.
5. Device according to claim 4, which the control valve produces a regulatable connection to a reduced pressure source.
6. Device according to claim 5, comprising a plurality of expansion orifices provided at targeted positions of the mold, each of which is associated with a control valve, each control valve being able to be supplied with reduced pressure from a common media supply and each of the control valves being individually activatable.
7. Device according to claim 4, which the expansion orifice is configured as a capillary containing a needle valve which closes the expansion orifice when the foam reaches the expansion orifice.
8. Device according to claim 4, comprising a pressure sensor to detect the pressure at the expansion orifice, the pressure characteristic being used as a detectable actual value for regulating the decrease in pressure and optionally also for closing the needle valve.
9. Method according to claim 1, wherein the textile product is a back-foamed mat.
10. Method according to claim 9, wherein the textile product is selected from the group consisting of floor coverings for motor vehicles, seat upholstery, and head rests.
11. Method according to claim 3, wherein the product-typical parameter is capillary forces of the components of the textile product.
12. Method for producing back-foamed air-permeable textile products comprising the steps of:
inserting the textile product into a mold;
closing the mold and introducing reactants to form the foam;
allowing the reactants to react to create a foam, with a simultaneous decrease in pressure created during the reaction via at least one expansion orifice in the mold half turned away from the inserted textile product;
controlling the decrease in pressure in such a way that none of the reactants nor the foam created by the reaction penetrates the textile product; and
once foaming has started on the back of the textile product inserted into the mold, regulating the decrease in pressure in such a way that any air present in the region of a useful or visible face of the textile product in the mold is extracted through the textile product and, in the process, opens cells in the foam already formed therein.