公开(公告)号：PH23471A

公开(公告)日：1989-08-07

申请号：PH33295

申请日：1986-01-17

Applicant: IBM

Inventor： IRWIN JOHN WILLIAM

IPC: G06F13/24 ,  G06K9/00 ,  G06F13/26 ,  G06F13/28 ,  G06F13/38 ,  G06F15/16 ,  G06F15/177

Abstract: Data processing system including a main processor (11) and a co-processor (22) sharing the same I/O facilities (17,18,19) as the main processor (11) and running software unknown to the main processor (11). The main processor (11) can concurrently run other software and maintains priority over shared I/O facilities (17,18,19) by providing trapping logic incorporated in a random access memory and dynamically loadable by the main processor (11) which contains data related to the current useability by the co-processor (22) of a shared I/O device (17). Additional logic is associated with the co-processor (22) to manage interrupts between the co-processor (22) and the system bus (16).

公开(公告)号：AU533235B2

公开(公告)日：1983-11-10

申请号：AU6084880

申请日：1980-07-28

Applicant: IBM

Inventor： IRWIN JOHN WILLIAM

IPC: B41F23/04 ,  B41J2/01 ,  B41J11/00 ,  B41J13/00 ,  B41J29/377 ,  B41M7/00

Abstract: A printer has a sheet feed and drum transport assembly (17), an exit assembly (465) and a dryer. Various print parameters or conditions relating to the drying of the ink on the print medium are monitored. These print parameters include print data density, ink drying characteristics and ambient humidity. The monitored print parameters are used to control the drying. In addition the monitored print parameters are used to control the detaching of the print medium from a rotary transport drum (10).

公开(公告)号：GB1282393A

公开(公告)日：1972-07-19

申请号：GB2247871

申请日：1971-04-19

Applicant: IBM

Inventor： IRWIN JOHN WILLIAM

IPC: G11B20/16

Abstract: 1282393 Digital data transfer INTERNATIONAL BUSINESS MACHINES CORP 19 April 1971 [5 March 1970] 22478/71 Heading G4C A digital electric data transfer apparatus in which a byte of data comprises a number of bits transferred in parallel, comprises a deskewing means 12 for assembling bytes, a byte assembly counter 15 for counting the number of bytes assembled, a byte output counter 16 for counting the number of bytes transferred, and means for initiating transfer when the counter 15 holds a greater count than counter 16. Apparatus.-Data is stored on magnetic tape 10 or other means, transferred to the deskewing means 12 (SKB) and thence to a data channel 17. The SKB is a modification of the SKB in British Patent No. 902,164 and has a plurality of read in counters 13 (RIC), one for each bit of a data byte being transferred. The byte assembly counter 15 (BAC) is responsive to the RIC and counts the number of assembled bytes, and the byte output counter 16 (BOC) counts the number of bytes transferred from the SKB to channel 17 via buffer 18. A clock 20 controls operations. Operation.-Every time channel 17 is ready to receive data and compare circuit 22 indicates that the BOC count is less than the BAC count (i.e. there is a byte ready for transfer) the clock 20 is activated. Firstly buffer 18 is cleared then a byte is transferred from the SKB to the buffer. The byte is the oldest in the SKB and is determined by the tally in BOC 16. BOC 16 is then incremented and line 31 activated to determine if BAC 15 is zero. Skew check (Fig. 2, not shown).-Circuit 40 receives the counts from the respective RIC's and, if there is too great a difference between the tallies, there is excessive skew. Overrun check.-Circuit 41 indicates overrun (i.e. more bytes entering the apparatus than leaving so that it is overfull) when the BOC has a predetermined relationship with the leading RIC. The overrun and skew checks do not take part simultaneously and if overrun or excessive skew is detected a diagnostic routine is entered.

公开(公告)号：DE68921318D1

公开(公告)日：1995-03-30

申请号：DE68921318

申请日：1989-12-18

Applicant: IBM

Inventor： IRWIN JOHN WILLIAM ,  WAGONER JAMES DONALD

IPC: H04L29/10 ,  H04L1/00 ,  H04L25/49

公开(公告)号：IN166350B

公开(公告)日：1990-04-14

申请号：IN858MA1985

申请日：1985-10-28

Applicant: IBM

Inventor： IRWIN JOHN WILLIAM

IPC: G06F13/24 ,  G06F13/26 ,  G06K9/00 ,  G06F13/28 ,  G06F13/38 ,  G06F15/16 ,  G06F15/177 ,  G06F13/00

Abstract: Data processing system including a main processor (11) and a co-processor (22) sharing the same I/O facilities (17,18,19) as the main processor (11) and running software unknown to the main processor (11). The main processor (11) can concurrently run other software and maintains priority over shared I/O facilities (17,18,19) by providing trapping logic incorporated in a random access memory and dynamically loadable by the main processor (11) which contains data related to the current useability by the co-processor (22) of a shared I/O device (17). Additional logic is associated with the co-processor (22) to manage interrupts between the co-processor (22) and the system bus (16).

公开(公告)号：DE3377053D1

公开(公告)日：1988-07-21

申请号：DE3377053

申请日：1983-10-17

Applicant: IBM

Inventor： IRWIN JOHN WILLIAM

IPC: B41J2/01 ,  B41J2/07 ,  B41J2/075 ,  B41M5/00 ,  B41J3/04

Abstract: Optimal reservoing times of an ink jet printer are determined to be when a calculated time period t-calc exceeds a fixed maximum value M, where the calculated time period is a function of the time T since last reservoing, of the usage C, and of the square of temperature changes. Specifically, the calculated time period, t-calc, iswhere T = time since last reservoing,C = usage value,K = temperature changes, andm,k = empirically-determined constants.

公开(公告)号：BR8600666A

公开(公告)日：1986-11-04

申请号：BR8600666

申请日：1986-02-17

Applicant: IBM

Inventor： BUCKLAND PATRICK ALLEN ,  IRWIN JOHN WILLIAM

IPC: G06F3/153 ,  G09G5/22 ,  G06F13/24

公开(公告)号：AT20216T

公开(公告)日：1986-06-15

申请号：AT80101466

申请日：1980-03-20

Applicant: IBM

Inventor： IRWIN JOHN WILLIAM

IPC: B41J29/38 ,  B41J13/00 ,  B41J19/20 ,  G03G17/00 ,  G06F17/00 ,  G06K15/00 ,  G06K15/06 ,  G06K15/10 ,  H04N1/04 ,  G06F15/20

Abstract: In a printing device including a paper feed drum 10 and a printing array 250, the movements of the drum and array are controlled by servo systems 62 and 264. Both servo loops include a common micro-processor. During a non-printing cycle of the machine, the processor selects certain operating parameters and stores these parameters as critical operating parameters for use in subsequent printing cycles.

公开(公告)号：FI801324A

公开(公告)日：1980-10-31

申请号：FI801324

申请日：1980-04-24

Applicant: IBM

Inventor： IRWIN JOHN WILLIAM

IPC: B41J29/38 ,  B41J13/00 ,  B41J19/20 ,  G03G17/00 ,  G06F17/00 ,  G06K15/00 ,  G06K15/06 ,  G06K15/10 ,  H04N1/04 ,  B41F

Abstract: In a printing device including a paper feed drum 10 and a printing array 250, the movements of the drum and array are controlled by servo systems 62 and 264. Both servo loops include a common micro-processor. During a non-printing cycle of the machine, the processor selects certain operating parameters and stores these parameters as critical operating parameters for use in subsequent printing cycles.

公开(公告)号：GB2171823B

公开(公告)日：1989-06-14

申请号：GB8525990

申请日：1985-10-22

Applicant: IBM

Inventor： IRWIN JOHN WILLIAM

IPC: G06F13/24 ,  G06F13/26 ,  G06K9/00 ,  G06F13/28 ,  G06F13/38 ,  G06F15/16 ,  G06F15/177

Abstract: Data processing system including a main processor (11) and a co-processor (22) sharing the same I/O facilities (17,18,19) as the main processor (11) and running software unknown to the main processor (11). The main processor (11) can concurrently run other software and maintains priority over shared I/O facilities (17,18,19) by providing trapping logic incorporated in a random access memory and dynamically loadable by the main processor (11) which contains data related to the current useability by the co-processor (22) of a shared I/O device (17). Additional logic is associated with the co-processor (22) to manage interrupts between the co-processor (22) and the system bus (16).