Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4477895 | Synchronized protection switching arrangement A multichannel data link switching control arrangement for synchronizing the substitution of one data channel for another without causing the insertion or deletion of data bits from the data transmitted over the communication path that is coupled to the c... | 10/16/1984 |
| 4464658 | Multipoint data communication system with collision detection An improved multipoint access data communication system with collision detection provides a duplicative communication medium, network interface units adapted for connection to transceivers on both media, transceivers adapted for connection to a plurality ... | 08/07/1984 |
| 4442518 | Channel switching system for use in a digital communication system A channel switching method and system for a digital communication system including a repeater station linked with first and second stations and including first and second regular channels and a standby channel in each direction between the repeater statio... | 04/10/1984 |
| 4435803 | Analog subscriber/trunk module with shared ringing source and ring-trip An apparatus and method of organizing line interface modules between analog subscriber lines/trunks and a digital switch with the provision for ringing signals which may be shared by a plurality of lines from a single source is described. The ringing sign... | 03/06/1984 |
| 4402082 | Automatic line termination in distributed industrial process control system A control system for controlling an industrial process includes a plurality of remotely located process control units (remotes) each coupled to an associated input/output device(s) and adapted to communicate with one another through a dual channel communi... | 08/30/1983 |
| 4398271 | Device for data transmission between seismic data acquisition devices and a recording device A device for transmitting seismic data informations from acquisition devices of a seismic streamer to a central recorder an a ship, comprises at least two outward, and at least tow inward transmission lines made up of line sections interconnected by inter... | 08/09/1983 |
| 4393493 | Automatic protection apparatus for span lines employed in high speed digital systems An automatic span line switch for high speed communication lines is disclosed. The apparatus employs an alarm interface unit which is coupled to a service line terminal in order to detect a line failure mode. Upon detection of such a mode, the system oper... | 07/12/1983 |
| 4365248 | Digital transmission link relief triggering system The system triggers the relief of a working line amongst N working lines in a bidirectional digital transmission link having at least one spare line. The link is interconnected between two end stations (A, B) which allow a switch-over between a faulty wor... | 12/21/1982 |
| 4331834 | Modular telecommunication system A modular telecommunication system comprises a plurality of switching blocks and a plurality of inter-connecting lines for interconnecting the switching blocks. Each of the switching blocks includes a multiplicity of line terminators each adapted to be co... | 05/25/1982 |
| 4328577 | Muldem automatically adjusting to system expansion and contraction A muldem (100) has a monitor (101) for testing data path failures and standby data protective switching means (108, 109) providing alternate standby data paths in the event of a malfunction. The system accepts a maximum of fifty-six standard low speed T1 ... | 05/04/1982 |
| 4273955 | System for in-service quantitative performance analysis of data communications system A data communication system is provided comprising, at a plurality of locations, data terminal equipment. Communication equipment adapted to transmit and/or receive data from location to location is provided at each location connected to the terminal equi... | 06/16/1981 |
| 4266293 | Protection control unit for a TDM system A digital multiplexing system including first and second multiplexers, each connected to a plurality of multi-timeslot digital data buses for multiplexing digital data on said plurality of buses to first and second buses, respectively, thereby forming fir... | 05/05/1981 |
| 4254496 | Digital communication bus system A digital bus system for the transmission of pulse code modulated speech and control data between a common multiplexer and a multiplicity of line circuits in a telecommunications system. In the past the line circuits were multiplexed directly onto a commo... | 03/03/1981 |
| 4241445 | Method and apparatus for counting transmission errors in a digital microwave link A method of counting transmission errors in a digital microwave link with a demand of commutation onto an emergency channel when the quality of the link becomes deficient, wherein the errors are counted during a period t which is always at least equal to ... | 12/23/1980 |
| 4071700 | Testing apparatus Apparatus for testing the operability of a signal translation means which passes signal information containing a definable and repeatable characteristic such as a synchronization signal through the use of a spare similar device and a demodulating device w... | 01/31/1978 |
| 4002847 | Fault isolation in a serial-looped transmission system A serial looped transmission system is disclosed which includes a central terminal and a number of remote terminals for two-way communication between the various terminals on a single looped transmission facility. Each terminal includes multiplexing and d... | 01/11/1977 |
| 3974340 | Data switching apparatus and method A method and apparatus for switching PCM data in a telephone exchange wherein the switch is of the time-space-time (TST) type comprising a plurality of identical inter-connected groups, each group having two separate planes in which connections may be est... | 08/10/1976 |
