An adaptive transversal equalizer acts jointly with a phase-jitter compensator to achieve substantially jitter-free passband equalization of a suppressed-carrier coherent data signal without the use of transmitted pilot tones. The received signal is split into quadrature components for separate equalization. The equalized outputs are demodulated to baseband, quantized and remodulated to passband. The differences between the equalized and remodulated outputs constitute error signals for direct co...

Method and apparatus enables encoding of medical prescriptions at pharmacies and scanning at scanning stations to derive data corresponding to prescribed drugs, their strengths, quantities and prices, and identities of certain parties, all derived data being transmitted to government controlled data processing equipment, and only certain of the data being transmitted to data processing equipment at banks for crediting of pharmacists accounts, without loss of desirable confidentiality as between ...

An electronic desk-top accounting machine is adapted to operate in the usual programmed mode as well as in a manual mode as an arithmetic calculator. It comprises a keyboard for entering numeric data and operative commands, a printing unit, a programming unit and an electronic data processing unit. A working memory contains data and processing results arising during execution of the accounting program. There are provided a selector switch for selecting the operating mode, programmed or manual, a...

An equalizer for a demodulated quadrature amplitude modulated signal comprises first sampling means for deriving a sole demodulated signal sample Z(kT) at each of the sampling times kT [Z(t), a signal of complex amplitudes; T, the discrete code signal interval; t = 0, the time of occurrence of arbitrary one of maximum absolute values of the complex amplitude of the demodulated signal; k, integers], second sampling means for simultaneously deriving a predetermined number, 2N + 1, of simultaneous ...

A system is disclosed for expediting and monitoring customer transactions in the game of keno including a plurality of transaction terminals or stations each including scanner means for sensing marked number spots of a customer marked keno ticket, a manually operable keyboard for receiving entries of the price of a transaction and the nature of the transaction and a duplicate receipt ticket providing means including printing means controlled by the scanner and the keyboard for rapidly providing ...

The process to establish and check the matching of negatives and processing envelopes in photographic laboratories foresees that in the initial phase the bar code printed on the cartridge is automatically read and machine-reproduced in a legible code on the envelope (1), and that at the end of the film handling, an automatic check is performed between the bar code (4) preprinted on the film and the code printed on the envelope and a visually displayed comparison is made on the screen between neg...

A metering device, such as a postage meter, can be updated by a code bearing means which is provided with a first discernible code and a second obscured code, for instance, magnetic code. A computer stores a third code in association with the first code, however, the third code is correlated with the second code. Upon inserting the code bearing means in the metering device and obtaining the third code from the computer, the metering device is conditioned for updating responsive to said second co...

A postage meter is used in conjunction with a coupon which serves for updating, i.e. increasing the credit register, by a predetermined sum of money. Means are provided to invalidate the coupon after use and to provide the coupon with data indicative of the status of the register.

A system for collecting data relating to medical specimens includes a hand-held terminal incorporating a bar code reader and a keyboard for receiving information for identifying a medical specimen and a medical specimen source, an internal memory within the hand-held terminal for storing information including information identifying medical specimens and corresponding medical specimen sources, and application software operating within the hand-held terminal responsive to the input devices and th...

A merchandise distribution control system employs specialized labels and requires no writing by loading or shipping dock personnel. All labels and tabs are preprinted or printed at the same time and bear the appropriate store identification number and carton serial number. This printing can be in OCRA, UPC, magnetic, or dot code for manual or automatic scanning. A distribution list is printed by electronic data processing equipment and sets forth all of the merchandise to be distributed, thereby...