公开(公告)号：US3718986A

公开(公告)日：1973-03-06

申请号：US3718986D

申请日：1971-04-01

Applicant: GEN ELECTRIC

Inventor： HEWITT T

IPC: G09B7/08 ,  G09B7/06

CPC classification number: G09B7/08

Abstract: A PROGRAMMING COMPONENT GENERATES SELF-CLOCKING DIGITAL CONTROL SIGNALS AND RECORDS THEM ON ONE TRACK OF A MAGNETIC TAPE AND RECORDS ANALOG SIGNALS ON ANOTHER TRACK FOR PROVIDING AUDIO INFORMATION TO THE STUDENT. THE TAPE IS THEN UTILIZED IN A RESPONSE COMPONENT WHICH RESPONDS TO THE DIGITAL CONTROL SIGNALS TO PROVIDE AUTOMATIC OPERATIONS SUCH AS REMOTELY OPERATING A VISUAL DISPLAY DEVICE (I.E. A SLIDE PROJECTOR), FOR PRESENTING TO THE STUDENT MATERIAL IN LECTURE FORM AND/OR MULTIPLE-CHOICE PROBLEMS. THE RESPONSE COMPONENT INCLUDES ELECTRONIC LOGIC CIRCUITRY FOR DETERMINING THE CORRECTNESS OF THE STUDENT''S RESPONSE TO THE PROBLEMS. A PUSHBUTTON ASSEMBLY ON THE RESPONSE COMPONENT PERMITS THE STUDENT TO ADVANCE THE TAPE IN ACCORDANCE WITH THE TAPE RECORDED PROGRAM AND TO INDICATE HIS ANSWERS TO THE PROBLEMS. THE RESPONSE COMPONENT IS INTERCONNECTED WITH A DATA COLLECTION AND ANALYSIS COMPONENT FOR RECORDING THE STUDENT''S RESPONSES FOR SUBSEQUENT COMPUTER PROCESSING.

公开(公告)号：US3814909A

公开(公告)日：1974-06-04

申请号：US33559573

申请日：1973-02-26

Applicant: GEN ELECTRIC

Inventor： HEWITT T

IPC: G03B23/02 ,  G06K17/00 ,  H03M7/12 ,  G06M3/02

CPC classification number: G03B23/02 ,  G06K17/0016 ,  H03M7/12

Abstract: The controller includes multi two-input exclusive-OR gates having first inputs supplied with a two-digit BCD-coded signal representing the desired number of a slide to be selected for viewing in a random-access slide projector. Second inputs to the OR gates are connected to outputs of base 10 ''''tens'''' and ''''ones'''' counters which count clock pulses in response to a START command signal. Coincidence of the inputs to the OR gates causes a control logic circuit to terminate the generation of the clock pulses which are also counted by two N base (other-than-10) counters. The N base corresponds to the number of rows or columns in a code matrix used to specify the slide numbers. The outputs of the two N base counters are supplied to two one-of-N decoders each of which provides one output signal that identifies the particular row and column in the code matrix which specifies the desired slide location. Interface circuits at the outputs of the decoders provide the proper voltage level of voltage signals applied to the projector mechanism for searching the projector slide tray for the desired slide.

Abstract translation: 控制器包括多个双输入异或门，其中第一输入端被提供有两位数字BCD编码信号，表示要在随机存取幻灯机中观看的幻灯片的所需数量。 OR门的第二个输入连接到基于10位的“十”和“一”计数器的输出端，这些计数器响应于START命令信号对时钟脉冲进行计数。 输入到或门的一致性导致控制逻辑电路终止时钟脉冲的产生，这些脉冲也由两个N个基准（其他十个）计数器计数。 N base对应于用于指定幻灯片编号的代码矩阵中的行数或列数。 两个N个基本计数器的输出被提供给两个N个解码器，每个N个解码器提供一个输出信号，该输出信号标识指定期望的滑动位置的代码矩阵中的特定行和列。 解码器输出端的接口电路提供了适用于投影机构的电压信号的电压电平，用于搜索投影机滑块以获得所需的滑块。

公开(公告)号：US3718985A

公开(公告)日：1973-03-06

申请号：US3718985D

申请日：1971-04-01

Applicant: GEN ELECTRIC

Inventor： HEWITT T

IPC: G09B7/073 ,  G09B7/06

CPC classification number: G09B7/073

Abstract: STRUCTOR THE CORRECT ANSWERS TO THE MULTIPLE-CHOICE QUESTIONS.
A PROGRAMMING COMPONENT GENERATES SELF-CLOCKING DIGITAL CONTROL SIGNALS AND RECORDS THEM ON ONE TRACK OF A MAGNETIC TAPE AND RECORDS ANALOG SIGNALS ON ANOTHER TRACK FOR PROVIDING AUDIO INFORMATION TO A GROUP OF STUDENTS. THE TAPE IS THEN UTILIZED IN A RESPONSE COMPONENT WHICH RESPONDS TO THE DIGITAL CONTROL SIGNALS TO PROVIDE AUTOMATIC OPERATIONS SUCH AS REMOTELY OPERATING ONE OR TWO VISUAL DISPLAY DEVICES (I.E., A SLIDE PROJECTOR), AND FOR PRESENTING TO THE STUDENTS OVER A LOUD-SPEAKER, MATERIAL IN LECTURE FORM AND, OR, MULTIPLE-CHOICE QUESTIONS. THE RESPONSE COMPONENT IS OPERATED BY THE INSTRUCTOR AND INCLUDES MULTIPLE LAMPS WHICH DISPLAY TO THE IN-

公开(公告)号：US3718984A

公开(公告)日：1973-03-06

申请号：US3718984D

申请日：1971-04-01

Applicant: GEN ELECTRIC

Inventor： HEWITT T

IPC: G09B7/06

CPC classification number: G09B7/06

Abstract: A PROGRAMMING COMPONENT GENERATES SELF-CLOCKING DIGITAL CONTROL SIGNALS AND RECORDS THEM ON ONE TRACK OF A MAGNETIC TAPE AND RECORDS ANALOG SIGNALS ON ANOTHER TRACK FOR PROVIDING AUDIO INFORMATION TO THE STUDENT. THE TAPE IS THEN UTILIZED IN A RESPONSE COMPONENT WHICH RESPONDS TO THE DIGITAL CONTROL SIGNALS TO PROVIDE AUTOMATIC OPERATIONS SUCH AS REMOTELY OPERATING ONE OR TWO VISUAL DISPLAY DEVICES (I.E., A SLIDE PROJECTOR), FOR PRESENTING TO THE STUDENT MATERIAL IN LECTURE FORM AND, OR, MULTIPLE-CHOICE PROBLEMS. THE RESPONSE COMPONENT INCLUDES ELECTRONIC LOGIC CIRCUITRY FOR DETERMING THE CORRCTNESS OF THE STUDENT''S RESPONSE TO THE PROBLEMS. A PUSHBOTTOM ASSEMBLY ON THE RESPONSE COMPONENT PERMITS THE STUDENT TO ADVANCE THE TAPE IN ACCORDANCE WITH THE TAPE RECORDED PROGRAM AND TO INDICATE HIS ANSWERS TO THE PROBLEMS. THE RESPONSE COMPONENT IS INTENDED FOR INDIVIDUALIZED INSTRUCTIONS WITH TOTALLING OF THE STUDENT''S RIGHT AND WRONG RESPONSES BEING DONE ON COUNTERS MOUNTED ON THE RESPONSE COMPONENT.

D R A W I N G