| Class Number |
Class Name |
No. of Patents |
| 713/600 |
Clock control of data processing system, component, or data transmission |
1033 |
| 713/601 |
Inhibiting timing generator or component |
400 |
| 713/500 |
Clock, pulse, or timing signal generation or analysis |
1203 |
| 713/503 |
Correction for skew, phase, or rate |
674 |
| 713/502 |
Counting, scheduling, or event timing |
763 |
| 713/501 |
Multiple or variable intervals or frequencies |
866 |
| 713/300 |
Computer power control |
2494 |
| 713/310 |
By external command |
695 |
| 713/340 |
Having power source monitoring |
1053 |
| 713/320 |
Power conservation |
1885 |
| 713/323 |
Active/idle mode processing |
1264 |
| 713/322 |
By clock speed control (e.g., clock on/off) |
1037 |
| 713/324 |
By shutdown of only part of system |
1154 |
| 713/321 |
Programmable calculator with power saving feature |
625 |
| 713/330 |
Power sequencing |
560 |
| 713/187 |
Computer program modification detection by cryptography |
400 |
| 713/188 |
Computer virus detection by cryptography |
380 |
| 713/189 |
Data processing protection using cryptography |
1134 |
| 713/193 |
By stored data protection |
1605 |
| 713/190 |
Computer instruction/address encryption |
382 |
| 713/192 |
Having separate add-on board |
175 |
| 713/194 |
Tamper resistant |
626 |
| 713/191 |
Upgrade/install encryption |
199 |
| 713/1 |
Digital data processing system initialization or configuration (e.g., initializing, set up, configuration, or resetting) |
2455 |
| 713/2 |
Loading initialization program (e.g., booting, rebooting, warm booting, remote booting, bios, initial program load (ipl), bootstrapping) |
2123 |
| | Electric signal modification (e.g., scrambling) (380/9) | |
| 713/150 |
Multiple computer communication using cryptography |
585 |
| 713/155 |
Central trusted authority provides computer authentication |
828 |
| 713/156 |
By certificate |
717 |
| 713/157 |
Chain or hierarchical certificates |
184 |
| 713/158 |
Revocation or expiration |
181 |
| 713/159 |
Including intelligent token |
230 |
| 713/162 |
Having particular address related cryptography |
327 |
| 713/163 |
Multicast |
213 |
| 713/160 |
Packet header designating cryptographically protected data |
348 |
| 713/161 |
Data authentication |
422 |
| 713/168 |
Particular communication authentication technique |
1731 |
| 713/176 |
Authentication by digital signature representation or digital watermark |
1884 |
| 713/179 |
Including generation of associated coded record |
238 |
| 713/177 |
Signature tree |
94 |
| 713/178 |
Time stamp |
222 |
| 713/170 |
Authentication of an entity and a message |
743 |
| 713/175 |
By generation of certificate |
399 |
| 713/180 |
Generating specific digital signature type (e.g., blind, shared, or undeniable) |
417 |
| 713/171 |
Having key exchange |
767 |
| 713/172 |
Intelligent token |
466 |
| 713/174 |
Including particular multiplication or exponentiation circuit |
86 |
| 713/173 |
Pre-loaded with certificate |
176 |
| 713/181 |
Message digest travels with message |
363 |
| 713/169 |
Mutual entity authentication |
474 |
| 713/153 |
Particular node (e.g., gateway, bridge, router, etc.) for directing data and applying cryptography |
711 |
| 713/154 |
Including filtering based on content or address |
229 |
| 713/151 |
Protection at a particular protocol layer |
413 |
| 713/152 |
Application layer security |
224 |
| 713/164 |
Security kernel or utility |
466 |
| 713/165 |
File protection |
676 |
| 713/167 |
Object protection |
450 |
| 713/166 |
Security levels |
448 |
| 713/100 |
Reconfiguration (e.g., changing system setting) |
1563 |
| 713/400 |
Synchronization of clock or timing signals, data, or pulses |
1418 |
| 713/401 |
Using delay |
694 |
| 713/375 |
Synchronization of plural processors |
322 |
| 713/182 |
System access control based on user identification by cryptography |
1002 |
| 713/184 |
Pin/password generator device |
323 |
| 713/183 |
Solely password entry (no record or token) |
454 |
| 713/185 |
Using record or token |
571 |
| 713/186 |
Biometric acquisition |
606 |