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Franking system with distributed metering

Image Number 2 for United States Patent #8060445.

In a mail franking system including a central secure metering device (PSD 20) connected to a remote credit reloading server (26) and a plurality of local franking management modules (22-1 to 22-N) each including a local secure metering device (28-1 to 28-N) and connected to said central secure metering device via a user's local area network (LAN), there is provided a method wherein a franking session is opened, each of the local franking management modules books a predetermined franking value from a central secure metering device so as to perform secure frankings up to the limit of this value and at the end of session each of these modules transmits its consumed franking value to the central device which is then debited by an overall franking value equal to the sum of the franking values consumed by each of the local modules.

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