Am International Incorporated

Ta Triumph-adler Aktiengesellschaft

Peter A Wolf

Andrew D Bruce

Aaron J Belvo

Todd C Platt

John A Manley

Charles Jeffrey Conner

David U Johnson, Iii

A circuit compensates backlash of a shaft on an incremental encoder having a quadrature and index pulse output lines. Quadrature is represented as two signal lines phased apart by 90 degrees and an index pulse occurring once per revolution of the encoder shaft. The logical combination of the quadrature signals produce a four state condition which, through sequential examination of the signal levels, allows discriminating circuitry to determine the rotational direction of the encoder shaft. The circuit allows the definition of clockwise or counterclockwise rotation as being the forward direction. When the circuit discerns the positive forward rotational progression of the two signal lines, the circuit passes such signals unaltered to a pulse responsive system. Upon discernment of an encoder's shaft reverse rotation, the circuit causes the last forward rotational quadrature state to be latched on its output lines. The current condition of the index pulse is latched and the incidence of reverse pulses in a counter circuit is accumulated. Upon detection of a return to a forward rotational direction, the circuit counts down the number of forward pulses sufficient to exhaust the contents of the counter circuit. When the accumulated reverse rotational pulses have been counted down to zero and the state of the encoder's output signal lines match that of the latched condition, the circuit releases the latch and allows passage of subsequent quadrature signals and the index pulse.

Backlash compensation circuit for use with an incremental encoder

Newspapers are collated with materials which vary as a function of the characteristics of the readers of the newspapers. For example, a newspaper for a reader having a credit card for a particular business establishment would include an insert which is an advertisement for the business establishment. A newspaper for a reader who did not have a credit card for the business establishment would not include the advertisement. Indicia identifying the reader for whom each newspaper is intended is printed on the jacket of the newspaper during the process of collating the newspaper. Further indicia may be applied onto inserts appropriate to the intended reader and/or advertiser.

Method of collating newspapers based upon credit card holders

An improved newspaper handling apparatus and method enables newspapers to be formed in a sequence which is the same as the sequence in which newspapers are to be delivered to different addresses along a delivery route. Therefore, newspapers containing inserts for readers having particular characteristics can be formed and indicia corresponding to addresses along a delivery route printed on the newspapers in a sequence which is the same as the sequence in which the newspapers are delivered to the different addresses along the delivery route. During the forming of the newspapers, collating spaces are moved past hoppers from which inserts are fed. The completed newspapers are transferred from the collating spaces to a discharge conveyor in a sequence which corresponds to the sequence in which newspapers are to be delivered to different addresses along a delivery route. In the event of a misfeed of an insert for a newspaper, the transfer of newspapers from the hoppers is inhibited until a misfed section of a newspaper has been fed to the hopper at which the misfeed occurred. This enables the newspapers to be maintained in the same sequence that they are to be delivered to different addresses along a delivery route.

Newspaper handling method and apparatus with misfeed inhibiting control

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Piqua, OH, United States of America

Peter A Wolf