Title	Patent Filing Date
Signal generating circuit for anti-skid brake control apparatus	1974-07-22
Turn signal indicator	1974-06-11
Overlapped signal transition counter	1974-12-17
Ultrasonic signal generator	1974-05-30
Signal detector for a semiconductor memory device	1973-10-09
System for driving a direct-current motor in synchronism with an external signal	1973-10-15
Multiplex signal transmission system	1973-08-27
Signal synthesizing system adaptable for discrete four-channel sound reproducing system and matrix four-channel sound reproducing system	1973-05-25
Frequency-selective signal receiver for communication equipments, more particularly telephone equipments	1973-09-20
Circuit arrangement for producing a defined logic condition, particularly for the monitoring signal output in data processing equipment	1974-06-17
Signal selective circuit	1974-10-17
Chemiluminescent signal device	1974-03-26
Multi-frequency signal receiving circuit	1973-04-27
Threshold signal circuitry for scanning apparatus	1974-05-06
Device for generating a signal for a predetermined interval after a power switch is opened	1974-04-23
Signal compressors and expanders	1974-10-31
Terrain closure warning system with altitude rate signal conditioning	1975-03-06
Differential pressure visual and audible warning signal device for hydraulic and pneumatic systems	1975-03-04
Chemiluminescent foldable signal device	1974-03-26
Selective signal receiver for use in telecommunication systems	1974-08-02
Device for developing a neutralization signal for an echo suppressor	1974-08-06
Signal processor	1974-02-25
Multiplexed signal-sequence control system	1974-08-07
Broad band directional signal generator	1974-06-28
Flash lamp signaling circuit employing logic signal activation	1973-04-20
Ghost signal cancellation system	1973-03-14
A-C signal multiplying circuit by a ratio of whole numbers the numerator of which is greater than one and greater than the denominator	1974-10-21
Signal lamp configuration for directing high speed traffic and sequencing means therefor	1974-07-09
Signal generator comprising an addressable memory	1974-08-19
Signal source position-determining process	1974-04-15
Circuitry for determining direction of impingement of a received signal	1972-11-28
Color television signal generator	1972-10-24
Audio-visual apparatus with control signal operated gating means	1974-01-10
Electrical signal mechanism actuated in response to rotation about any of three axes	1974-06-03
Scrambler and decoder for a television signal	1974-08-05
Signal transmission system for transmitting programed information such as programed instruction	1973-08-29
Full duplex data transmission system using two speeds of diphase signal for simplified sync	1974-10-23
Dual delay line storage sound signal processor	1974-05-28
Signal averaging circuit	1974-09-12
Rate signal generator circuit	1974-03-05
Amplifier with fast recovery after input signal overswing	1974-11-14
Method of measuring the duration of a discontinuous signal	1974-11-12
Secret communication system employing magnetic control of signal modulation on microwave or other electromagnetic carrier wave	1956-09-10
Multifrequency signal receiver timing circuit	1974-09-12
Amplifier for analogue signal samples with automatic gain control, and circuit for digitisation of such samples	1973-01-10
Record carrier, method of producing the record carrier and method for reproducing stored signal therefrom	1974-01-28
Signal transmission with secrecy	1943-07-17
Digital signal averager with logarithmic time base	1974-08-29
Cathode-ray tube signal generator having resistance configurated electron receptor	1974-09-13
Apparatus for measuring a signal voltage including a current source with a control input on which said signal appears	1974-03-22