-
公开(公告)号:US3731177A
公开(公告)日:1973-05-01
申请号:US3731177D
申请日:1971-12-15
Applicant: IBM
Inventor: COMMANDER R , DIXON J
CPC classification number: G05D3/14 , G05B19/23 , G11B5/5547
Abstract: According to the present invention a movement control system comprises a motor for moving said body into a required position, a motor control unit for controlling the acceleration and deceleration of said motor, a position indicator unit producing positioning signals corresponding to movement of said body while accelerating toward said required position, and a calculating unit responsive to position data representing said required position and to said positioning signals to produce a control signal for said motor control unit to change from acceleration to deceleration in order to provide required speed/position characteristics for the movement of said body.
Abstract translation: 根据本发明,一种运动控制系统,包括用于将所述身体移动到所需位置的马达,用于控制所述马达的加速和减速的马达控制单元,位置指示器单元,产生与所述身体的运动相对应的定位信号,同时加速 朝向所述所需位置,以及计算单元,响应于表示所述所需位置的位置数据和所述定位信号,以产生用于所述电动机控制单元从加速变化到减速的控制信号,以便为所述运动提供所需的速度/位置特性 的身体。
-
公开(公告)号:BR7903715A
公开(公告)日:1980-02-05
申请号:BR7903715
申请日:1979-06-12
Applicant: IBM
Inventor: LEININGER J , DIXON J
Abstract: In a data processing system, a mechanism provides independent assignment of page locations for a program's instructions and its data and better enables control to be transferred between programs, or portions thereof, that reside at different addresses in different pages of a multiple page instruction store. The initial linkage is established through the use of a Branch And Link instruction. Subsequent linkages are established through the use of Return and Link instructions, each of which transfers control to a previous program, or program segment, while simultaneously establishing the linkage for a subsequent return to this program or program segment.
-
-
-
公开(公告)号:BR7702056A
公开(公告)日:1978-01-17
申请号:BR7702056
申请日:1977-03-31
Applicant: IBM
Inventor: DIXON J
Abstract: Signals generated by double frequency magnetic recording are received by logic which is controlled, and sensed, by a sequence of program instructions from a microprocessor. In particular, a special pattern of signals is to be recognized. The special pattern of signals is known in the magnetic disc recording art as an address mark which is a unique pattern of interspersed clock signals and data signals. The pattern is made more unique from any other pattern of data by the fact that certain of the clock signals are missing. The ability to utilize a microprocessor, which is relatively slow, in a magnetic recording system in which the bit rate is relatively fast, is enhanced by a particular processor program instruction which is effective to access a next following instruction from program storage and then stop the clock of the processor. The clock is re-started, and therefore execution of the next instruction initiated, upon receipt of a timing signal from the logic receiving the signals to be detected.
-
-
-
-