公开(公告)号：US3740590A

公开(公告)日：1973-06-19

申请号：US3740590D

申请日：1971-12-17

Applicant: IBM

Inventor： HART R ,  LEININGER J

IPC: H03K3/013 ,  H03K3/037 ,  H03K3/286 ,  H03K19/22

CPC classification number: H03K3/037 ,  H03K3/013

Abstract: A latch circuit in which false output and skewing of binary output signals on the latch output terminal are eliminated comprising conventional set and hold-clear logic sections. The improvement comprising logic means having an input terminal adapted for connection to the set signals and an output terminal connected to the output latch terminal and being responsive to the set signals for maintaining the state of the latch output terminal during a clock signal transition, and means for simultaneously applying binary clock signals of a first state to the set section and binary clock signals of opposite state to the hold-clear sections so as to allow one or the other to be activated.

Abstract translation: 锁存电路，其中消除了锁存器输出端子上的二进制输出信号的错误输出和偏移，包括常规的设置和保持清除逻辑部分。 该改进包括具有适于连接到设置信号的输入端子和连接到输出锁存端子的输出端子的逻辑装置，并响应于设置信号以在时钟信号转换期间保持锁存器输出端子的状态， 用于将第一状态的二进制时钟信号同时向保持清除部分施加相反状态的二进制时钟信号，以允许一个或另一个激活。

公开(公告)号：SE314240B

公开(公告)日：1969-09-01

申请号：SE1254463

申请日：1963-11-14

Applicant: IBM

Inventor： GREENBLOTT B ,  HART R

IPC: B41J2/22 ,  G06K15/02

Abstract: 992,449. Selective printers; printing processes. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 21, 1963 [Dec. 24, 1962], No. 45926/63. Headings B6C and B6F. Printing processes; pneumatic impression arrangements.-A method of printing on pressure-sensitive record material 34, Fig. 1, including a paper sheet 35 superimposed on a pressure-sensitive ink bearing paper 36, comprises the steps of producing a shock wave pressure disturbance by a spark discharge across gap 16 of electrodes 14, 15 in a compressible gas and directing the disturbance produced in a volume of the gas confined in a cavity 31 against the record material through one or more apertures 33 cut in a stencil plate 32, the apertures defining a pattern of a character to be printed. Type-band machines; screen-printing machines; machines forming characters by direct fluid pressure on ink ribbons.-A line-at-a-time printer for printing on pressure-sensitive record medium 50, Fig. 5, comprises an electrode support and shock wave reflector 52 formed of an electrically insulating material, e.g. moulded plastics and supports a pair of electrodes 54, 53 for generating a spark discharge across a gap 16 on discharging of a condenser 17. The disturbance is generated within a cavity 56 of a focusing plate 55 and which is directed towards a stencil member in the form of a band 57 having a plurality of character apertures 58 and mounted on a pair of spaced drive pulleys 59, 60. Upon arrival of the various characters 58 at their corresponding point positions the corresponding pairs of the electrodes 54, 53 are energized to generate shock waves within the corresponding cavities 56 and cause an impression of the characters on the record medium 50 backed by a platen 51.