JPS5745645A - Random number generator - Google Patents
Random number generatorInfo
- Publication number
- JPS5745645A JPS5745645A JP55120473A JP12047380A JPS5745645A JP S5745645 A JPS5745645 A JP S5745645A JP 55120473 A JP55120473 A JP 55120473A JP 12047380 A JP12047380 A JP 12047380A JP S5745645 A JPS5745645 A JP S5745645A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- register
- output
- address
- cpu6
- 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.)
- Pending
Links
Landscapes
- Manipulation Of Pulses (AREA)
Abstract
PURPOSE:To obtain random numbers momentarily with a simple constitution, by eliminating DC and harmonics from a minute voltage of noise source and shifting the output via a voltage comparator to the post-stages sequentially in synchronizing with a clock signal at a serial/parallel conversion shift register. CONSTITUTION:A minute voltage S1 produced at a noise source 1 is inputted to an amplifier 2 having a characteristic cutting of DC and harmonics, and an output signal S2 is converted into an output signal S3 of logical levels ''0'' and ''1''. A clock signal S4 is produced at an oscillator 4 and the signal S3 is sequentially shifted to the post-stage at a serial/parallel conversion shift register 5 in synchronizing with it. At readout, the address from a CPU6 is inputted to a register 5 as an output enable signal S5 from an address bus 7 via an address decoder 8, the content of the register 5 is outputted on a data bus 9 for the transfer to the CPU6 as random number. During readout, the content of register is stored through the inhibition of input of the signal S4 by a gate 10.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55120473A JPS5745645A (en) | 1980-08-29 | 1980-08-29 | Random number generator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55120473A JPS5745645A (en) | 1980-08-29 | 1980-08-29 | Random number generator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5745645A true JPS5745645A (en) | 1982-03-15 |
Family
ID=14787036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55120473A Pending JPS5745645A (en) | 1980-08-29 | 1980-08-29 | Random number generator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5745645A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0903665A2 (en) * | 1997-09-12 | 1999-03-24 | Kabushiki Kaisha Toshiba | Physical random number generator, method of generating physical random numbers and physical random number storing medium |
WO2001033333A1 (en) * | 1999-11-02 | 2001-05-10 | Leisure Electronics Technology Co., Ltd. | Thermal noise random pulse generator and random number generator |
WO2002037260A1 (en) * | 2000-10-24 | 2002-05-10 | Hmi Co., Ltd. | Random number generator |
WO2004017191A1 (en) * | 2002-08-14 | 2004-02-26 | Institute For Advanced Studies Co., Ltd. | Random number generator and random number generation method |
JP2006116234A (en) * | 2004-10-25 | 2006-05-11 | Samii Kk | Game machine |
JP2006116235A (en) * | 2004-10-25 | 2006-05-11 | Samii Kk | Game machine |
US8037117B2 (en) | 2004-05-24 | 2011-10-11 | Leisure Electronics Technology Co., Ltd. | Random number derivation method and random number generator using same |
-
1980
- 1980-08-29 JP JP55120473A patent/JPS5745645A/en active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0903665A2 (en) * | 1997-09-12 | 1999-03-24 | Kabushiki Kaisha Toshiba | Physical random number generator, method of generating physical random numbers and physical random number storing medium |
EP0903665A3 (en) * | 1997-09-12 | 1999-04-21 | Kabushiki Kaisha Toshiba | Physical random number generator, method of generating physical random numbers and physical random number storing medium |
EP1577749A2 (en) * | 1997-09-12 | 2005-09-21 | Kabushiki Kaisha Toshiba | Physical random number generator, method of generating physical random numbers and physical random number storing medium |
EP1577749A3 (en) * | 1997-09-12 | 2005-10-19 | Kabushiki Kaisha Toshiba | Physical random number generator, method of generating physical random numbers and physical random number storing medium |
WO2001033333A1 (en) * | 1999-11-02 | 2001-05-10 | Leisure Electronics Technology Co., Ltd. | Thermal noise random pulse generator and random number generator |
WO2002037260A1 (en) * | 2000-10-24 | 2002-05-10 | Hmi Co., Ltd. | Random number generator |
US7124157B2 (en) | 2000-10-24 | 2006-10-17 | Hmi Co., Ltd. | Random number generator |
WO2004017191A1 (en) * | 2002-08-14 | 2004-02-26 | Institute For Advanced Studies Co., Ltd. | Random number generator and random number generation method |
US8234322B2 (en) | 2002-08-14 | 2012-07-31 | Leisure Electronics Technology Co., Ltd. | Apparatus and method for generating random numbers |
US8037117B2 (en) | 2004-05-24 | 2011-10-11 | Leisure Electronics Technology Co., Ltd. | Random number derivation method and random number generator using same |
JP2006116234A (en) * | 2004-10-25 | 2006-05-11 | Samii Kk | Game machine |
JP2006116235A (en) * | 2004-10-25 | 2006-05-11 | Samii Kk | Game machine |
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