| Patent Number |
Title Of Patent |
Date Issued |
| 4975947 |
System to share the DSP computation resources |
Dec. 4, 1990 |
| 4975946 |
Convertible switched telephone exchange |
Dec. 4, 1990 |
| 4975945 |
Universal telephone call relay system |
Dec. 4, 1990 |
| 4975944 |
Method of making call-wait and call-alternation in electronic private branch exchange (EPBX) |
Dec. 4, 1990 |
| 4975943 |
Telephone set having outbound call restriction logic circuit |
Dec. 4, 1990 |
| 4975942 |
Credit/calling card pay telephone method and system employing telephone unit local card-checking... |
Dec. 4, 1990 |
| 4975941 |
Call processor for facilitating call completions |
Dec. 4, 1990 |
| 4975940 |
Telephone ringing adapter for operating upon reception of a preset number of calling signals |
Dec. 4, 1990 |
| 4975939 |
Channel changing system |
Dec. 4, 1990 |
| 4975938 |
Communications link testing |
Dec. 4, 1990 |
| 4975937 |
Head activated fluoroscopic control |
Dec. 4, 1990 |
| 4975935 |
Method of producing an X-ray exposure by means of a photoconductor and arrangement for carrying ... |
Dec. 4, 1990 |
| 4975934 |
Process and device for producing a radiographic image |
Dec. 4, 1990 |
| 4975933 |
Bow-tie X-ray filter assembly for dual energy tomography |
Dec. 4, 1990 |
| 4975932 |
Shift register and shift register system with controllable transfer stages |
Dec. 4, 1990 |
| 4975931 |
High speed programmable divider |
Dec. 4, 1990 |
| 4975930 |
Digital phase locked loop |
Dec. 4, 1990 |
| 4975929 |
Clock recovery apparatus |
Dec. 4, 1990 |
| 4975928 |
Device for deriving a clock signal using a gated phase-locked loop having means for suspending t... |
Dec. 4, 1990 |
| 4975927 |
Demodulator with composite transversal equalizer and eye detection clock synchronizer |
Dec. 4, 1990 |
| 4975926 |
Wireless indoor data communication system |
Dec. 4, 1990 |
| 4975925 |
Unlubricated bearings for gas lasers |
Dec. 4, 1990 |
| 4975924 |
Metallic vapor laser apparatus |
Dec. 4, 1990 |
| 4975923 |
Semiconductor diode laser array |
Dec. 4, 1990 |
| 4975922 |
Multi-layered dielectric film |
Dec. 4, 1990 |
| 4975921 |
Integrated prepulse circuits for efficient excitation of gas lasers |
Dec. 4, 1990 |
| 4975920 |
RF discharge excitation laser apparatus |
Dec. 4, 1990 |
| 4975919 |
Laser wavelength control apparatus |
Dec. 4, 1990 |
| 4975918 |
Tunable laser |
Dec. 4, 1990 |
| 4975917 |
Source of coherent short wavelength radiation |
Dec. 4, 1990 |
| 4975916 |
Character snychronization |
Dec. 4, 1990 |
| 4975915 |
Data transmission and reception apparatus and method |
Dec. 4, 1990 |
| 4975914 |
Non-disruptive session recovery |
Dec. 4, 1990 |
| 4975913 |
Programmable multiplexing/demultiplexing system |
Dec. 4, 1990 |
| 4975912 |
Brackish-water wire detector |
Dec. 4, 1990 |
| 4975911 |
Interface circuit for data transmission between a microprocessor system and a time-division-mult... |
Dec. 4, 1990 |
| 4975910 |
Method of operating a packet switching network |
Dec. 4, 1990 |
| 4975909 |
Broadcast network |
Dec. 4, 1990 |
| 4975908 |
Basic pulse frame and method for a digital signal multiplex hierarchy |
Dec. 4, 1990 |
| 4975907 |
Method and device for the asynchronous transmission of data by packets |
Dec. 4, 1990 |
| 4975906 |
Network system |
Dec. 4, 1990 |
| 4975905 |
Message transmission control arrangement for node in local area network |
Dec. 4, 1990 |
| 4975904 |
Local area network for digital data processing system including timer-regulated message transfer... |
Dec. 4, 1990 |
| 4975903 |
Digital timeslot and signaling bus in a digital PBX switch |
Dec. 4, 1990 |
| 4975902 |
Circuit for putting in conference a plurality of participants in telecommunication systems |
Dec. 4, 1990 |
| 4975901 |
Network for message switching between a plurality of processing units |
Dec. 4, 1990 |
| 4975900 |
Response delay system of an ISDN terminal in a point to multipoint configuration |
Dec. 4, 1990 |
| 4975899 |
Optical broadcast network |
Dec. 4, 1990 |
| 4975898 |
Method and apparatus for preventing copying of an optical disk |
Dec. 4, 1990 |
| 4975897 |
Reading circuit for an optical information storing apparatus |
Dec. 4, 1990 |
