Abstract: The device for examining securities, especially bank notes, includes a transport facility for conveying securities along a transport path and a recognition facility arranged on the transport path. The recognition facility has two integrated optical modules arranged alongside each other for scanning securities in two different wavelength ranges. The optical modules are arranged with their long axes basically parallel to each other, and at the same time slightly tipped toward each other. The optical module extends over an entire breadth of the transport path. It includes several light sources arranged at regular intervals, a larger number of optical imagining elements and several optical detectors, whereby the security is passed by a transparent front panel of the module.

Abstract: An improved system for identifying the user of postal equipment. A user provides identifying information, and if access is not appropriate based on that information, an additional comparison is performed before access is denied. This permits the user to select the identifying information needed for access from a set of predefined information, thereby permitting the user to change identifying information needed for access in the event the information has been or is suspected of having been compromised. Additional security may also be obtained by requiring the user to supply additional identifying information randomly selected from a predetermined set after valid first identifying information has been entered. Identifying information supplied by the user may include personal digital data, such as a digital fingerprint or retina eye scan.

Abstract: In a mailpiece stacking system, a pressure pad is used to direct incoming mailpieces from a mailing machine used with the system onto a feed deck, where the mailpieces are stacked against a stacking wall in the system. To properly handle mailpieces including window envelopes, the length of the pressure pad is selected in accordance with the invention such that it effectively deflects each mailpiece to land beyond the window part of any window envelope preceding thereto on the feed deck. Advantageously, the risk of having the mailpiece getting caught by an edge of the window part, resulting in a congestion, is avoided. In addition, among other things, a catch nub is included in the pressure pad for hooking onto a stub shaft mounted on the frame of the system. The nub hooks onto the stub shaft when the pressure pad is raised to allow it to stay in the raised position.

Abstract: A signal used in the transmission of data in a communication system including immediately successive cells for the purpose of cell synchronization, includes filler cells containing a predefined bit pattern. This pattern is provided with an error protection code that differs from an error protection code used for user data. Even if the user data should coincidentally contain the predefined bit pattern, the synchronization circuit will not be able to be simulated, since this false bit pattern is provided with a different error protection code. In order to test and ensure the synchronization state, a BIP (bit interleaved parity) value at the end of the cell is checked at the receiver end.

Abstract: To facilitate printing of postage or other images onto media of variable size, an apparatus determines the size of the medium in at least one dimension prior to or during the printing of the image, such that the image to be printed is adjusted based upon the determined size of the medium. The apparatus may be a postage meter, in which case information is received by a data processor concerning the size of a mail piece and the postal value. An initial image is made up of a fixed portion, including postal indicia, and a user-defined variable portion, is then altered in view of this input to provide a final image for printing on the mail piece which fits fully on the mail piece. The alteration effects only the variable portion of the image, which may be truncated, scaled or replaced with a different variable portion.

Abstract: The system has a postal security device that contains stored postage value, which causes the nonsecure printer to print onto a mail piece. In addition, the postal security device is attached to a secure card interface, which receives a secure card. The postal security device is connected to the TMS host by a data link. The TMS host is connected to the postal authority by a data link.

Abstract: In a postage printing device, a printer is employed to print postage indicia on mail pieces. The printer is preferably a noncontact printer such as an ink-jet printer. Printing occurs as the mail piece moves relative to the print head of the printer, which requires that reliable motion information (e.g. a print clock signal) be made available to the electronics driving the print head. The reliable motion is provided in a noncontact way, preferably by directing a laser beam toward the mail piece and detecting a moving speckle pattern in the light scattered from the mail piece.

Abstract: A DC/DC converter which can be operated alternately as a step-up converter in a first direction of energy flow and as a step-down converter in a second direction of energy flow is disclosed. Potential isolation between the low-voltage side and the high-voltage side of the converter is achieved by a magnetic compound unit, which has not only a transformer function but also an energy store function. The converter operates as a push-pull converter in both directions of energy flow. The DC/DC converter can be used for example in motor vehicles with an electric drive fed by fuel cells.

Abstract: A mail piece handler defines a paper path having a downstream direction. A first motor is mechanically coupled with the mail piece handler, and an encoder is operatively coupled with the mail piece handler. A mail piece sensor is positioned at the paper path, and a print rotor is positioned at the paper path downstream of the mail piece sensor, the print rotor having a print surface. A second motor is mechanically coupled with the print rotor, and an electronic controller is communicatively coupled with the encoder, with the mail piece sensor, and with the second motor, the controller disposed in the event of sensing of a mail piece by the mail piece sensor to control said second motor so as to cause the print surface of the print rotor to move at substantially a speed measured via the encoder.

Abstract: A postage meter has a locking cam follower so that locking arms on the print wheels of the postage meter are able to lock the wheels from unintended movement when the print rotor is out of its home position. Stiff runners are provided below guide rods of setting racks in the rotor so that the racks cannot be displaced away from the value wheels. A sensor is placed on the rotor cover with the meter software set up to keep a print cycle from starting if the cover is open. A cam on the rotor makes it impossible to open the cover when the rotor is out of the home position. A latch holds the cover shut, and the only way the latch can be released is if the meter software releases it, for example by sliding a rack to a position that triggers the latch. Cogs and cog teeth are used instead of gears and gear teeth to reduce the possibility of unintended movement of the value wheels. Rotating disks lock the racks when the rotor is not in the home position.

Abstract: In an improved postage scale system, soft-selection keys are used for selecting options including shipping service options provided by the system. The display on such a system is adjustable for comfortable viewing thereof. The system is capable of interfacing and communicating with other devices such as a printer, a remote computer, an optical scanner, an integrated circuit (IC) card, etc. Certain data and code for use in the system can be updated by downloading new data and code from IC cards to the system. A security measure is instituted such that, after an update of the data or code, a system user is required to enter a valid authorization number in order to enable the system. Such a measure is, in part, necessary for deterring unauthorized copying of software of the system onto another similar system.

Abstract: Several nodes are connected to a ring structure by means of communication lines in a network for packet-oriented data traffic. Each node is connected to lines of the ring structure. A buffer circuit is provided between the high speed interfaces for reading a routing information on the head of a data packet. The buffer circuits are structured in such a manner that the delay time in the transit traffic is smaller than, for example, 10 .mu.s. Several users are connected at the node. A wait line circuit is provided for each user. A controller ensures the processing of the data packets in the transit, insert and extract modes.

Abstract: An improved system for providing early warning preemptive postal equipment replacement. Selected performance parameters of the postal equipment are monitored and compared against predetermined operational boundaries. The system is capable of providing for variability in the performance parameters, wherein these parameters may be permitted to vary over time and usage of the equipment. The monitoring gives an indication of the overall system performance. If the system performance goes outside of operational boundaries, or changes significantly over time, replacement of the equipment can then be scheduled with minimal inconvenience to the customer.

Abstract: Secure activities are carried out between a client (23) and a server (21) in connection with the printing of postage. A cryptographically secure exchange (22) is employed so as to establish a common time base (24, 25), said common time base obviating a constant (e.g. battery) power supply. The postage-printing client (23) thus does need not have a reliable power supply in the absence of AC (mains) power.

Abstract: In accordance with the present invention, there is provided a greatly improved Postal Security Device (PSD) incorporating periodic and automatic self implementation of a public/private key pair. According to the invention, it is provided that the appropriate resources are contained in a PSD, thereby permitting the PSD generate a new set of public/private key pairs as required to change the secure cryptographic identity of the PSD. Such generation may occur in response to an arbitrary criterion, such as a request, a change in usage patterns, the amount spent, and/or the number of pieces processed. The number of key pair generations may be limited to a predetermined maximum. The appropriate authorities are then notified of the new PSD Public key. The new PSD key pair is used upon receipt of the appropriate certificate from the Certification Authority.

Abstract: Four parallel lines are provided for the guided transmission of a data flow with a high rate (sub-GHz range). Two data bits per transmission clock are transmitted via these lines. The other two remaining lines are used for signaling certain changes in both data bits. Data transmission and signaling are accomplished on the basis of the Grey code. In other words, only one of the four lines changes state per clock. The interface according to the invention has reduced sensitivity to signal skew and permits simple clock recovery in terms of circuit engineering.

Abstract: For controlling the data traffic in an ATM network, in which a number of nodes are connected via a closed loop, and in which each node may be equipped with a number of access ports for sending and receiving ATM cells, the ATM cells are processed separately in each node based upon their assignment to a QoS (quality of service) class in a predefined QoS classification. In each access port, each QoS class is assigned a separate queue. The data traffic in the closed loop is monitored separately, based upon QoS class, by a cell monitor. If a performance characteristic of a QoS class is not fulfilled in the closed loop, then at least one back-pressure signal will be generated, which will serve to suppress at least one assigned queue of the access port. The monitoring of the data traffic can be implemented via a leaky-bucket system.

Abstract: In an improved postage scale system, soft-selection keys are used for selecting options including shipping service options provided by the system. The display on such a system is adjustable for comfortable viewing thereof. The system is capable of interfacing and communicating with other devices such as a printer, a remote computer, an optical scanner, an integrated circuit (IC) card, etc. Certain data and code for use in the system can be updated by downloading new data and code from IC cards to the system. A security measure is instituted such that, after an update of the data or code, a system user is required to enter a valid authorization number in order to enable the system. Such a measure is, in part, necessary for deterring unauthorized copying of software of the system onto another similar system.