JPS6462147A - Sequence controller for mri - Google Patents
Sequence controller for mriInfo
- Publication number
- JPS6462147A JPS6462147A JP62219121A JP21912187A JPS6462147A JP S6462147 A JPS6462147 A JP S6462147A JP 62219121 A JP62219121 A JP 62219121A JP 21912187 A JP21912187 A JP 21912187A JP S6462147 A JPS6462147 A JP S6462147A
- Authority
- JP
- Japan
- Prior art keywords
- event execution
- event
- time
- inputted
- comparator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
PURPOSE:To shorten an imaging time to a large extent, by providing an event execution memory at every event and allowing each event execution circuit to execute an event independently on the basis of a reference time. CONSTITUTION:An event circuit 13 receives a reference time from a sequence controller bus 7 to apply the same to one input terminal of an internal comparator 8 and the event execution time read from an event execution memory 14 is inputted to the other input terminal thereof. The comparator 8 outputs a coincidence pulse when the reference time coincides with an event execution time and, when said coincidence pulse is inputted to the address counter 9 of the event execution memory 14, the event execution time among two kinds of the data read from the event execution memory 14 by address indication is inputted to the comparator 8. In the case of the event execution circuit 13 outputting a gradient magnetic field Gx, control data is inputted to a D/A converter 15 to be stored in the latch circuit within the D/A converter 15 by the coincidence pulse of the comparator 8 to output a gradient magnetic field. Therefore, imaging becomes possible within a short time.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62219121A JP2609624B2 (en) | 1987-09-03 | 1987-09-03 | Sequence controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62219121A JP2609624B2 (en) | 1987-09-03 | 1987-09-03 | Sequence controller |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6462147A true JPS6462147A (en) | 1989-03-08 |
JP2609624B2 JP2609624B2 (en) | 1997-05-14 |
Family
ID=16730574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62219121A Expired - Lifetime JP2609624B2 (en) | 1987-09-03 | 1987-09-03 | Sequence controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2609624B2 (en) |
-
1987
- 1987-09-03 JP JP62219121A patent/JP2609624B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2609624B2 (en) | 1997-05-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080213 Year of fee payment: 11 |