5J001
|
Pulse circuits
|
5J002
|
Amplitude modulation
|
5J003
|
Solid-state oscillation circuits
|
5J005
|
Thyristor switches and gates
|
5J006
|
Control of motors that do not use commutators
|
5J011
|
Waveguide connection structure
|
5J012
|
Waveguide switches, polarizers, and phase shifters
|
5J013
|
Non-reversible transmitting devices
|
5J014
|
Waveguides
|
5J020
|
Aerials with secondary devices
|
5J021
|
VARIABLE-DIRECTION AERIALS AND AERIAL ARRAYS
|
5J022
|
ANALOGUE/DIGITAL CONVERSION
|
5J023
|
Filters that use time-delay elements
|
5J024
|
Filters and equalizers
|
5J025
|
Phase shifter networks
|
5J026
|
Attenuators
|
5J030
|
Tone control, compression and expansion, limiting amplitude
|
5J032
|
Logic circuits (1)
|
5J034
|
Pulse generators using semiconductor elements
|
5J035
|
Microwave delay lines
|
5J036
|
Microwave parts manufacturing methods
|
5J037
|
Delay, matching, branching and mixing circuits
|
5J039
|
MANIPULATION OF PULSES
|
5J042
|
Logic circuits (3)
|
5J043
|
Pulse generators
|
5J044
|
Digital circuit networks
|
5J045
|
WAVEGUIDE AERIALS
|
5J046
|
DETAILS OF AERIALS
|
5J047
|
SUPPORT OF AERIALS
|
5J048
|
Basic linear aerials
|
5J049
|
Pulse train generators
|
5J050
|
Electronic switches II
|
5J051
|
Input and output circuits of counters and dividers
|
5J052
|
Counters and dividers
|
5J054
|
Pulse generators using special elements
|
5J055
|
ELECTRONIC SWITCHES I
|
5J056
|
LOGIC CIRCUITS (2)
|
5J057
|
Beacon systems
|
5J058
|
Direction finding
|
5J059
|
Waveguide type couplers
|
5J061
|
Optical beacon, direction finding and position determination
|
5J062
|
POSITION FIXING BY USE OF RADIO WAVES
|
5J063
|
Distance and velocity measurement without using reflection or reradiaton
|
5J064
|
COMPRESSION, EXPANSION, CODE CONVERSION, AND DECODERS
|
5J065
|
Error detection and correction
|
5J066
|
Differential amplifiers
|
5J067
|
Microwave amplifiers
|
5J068
|
Special amplifiers
|
5J069
|
Two-way, combined charge and gate amplifiers
|
5J070
|
RADAR SYSTEMS OR DETAILS THEREOF
|
5J072
|
Demodulation of modulated oscillations
|
5J073
|
Carrier wave frequency conversion, and electromagnetic wave demodulation or conversion
|
5J074
|
Super-regenerative demodulation, phase comparison and frequency comparison
|
5J075
|
Generation and operation of pulses having slopes or steps
|
5J076
|
Pulse modulation and demodulation
|
5J077
|
Sign wave-to-pulse conversion
|
5J078
|
Details; negative resistance, transit time and digital oscillation
|
5J079
|
OSCILLATORS WITH ELECTROMECHANICAL RESONATORS
|
5J080
|
Multiplication, demultiplication, sweeping, beat and noise generation and others
|
5J081
|
Inductance-capacitance distribution constants and capacitance-resistance oscillators
|
5J082
|
Angle modulation and electromagnetic wave modulation
|
5J083
|
MEASUREMENT OF VELOCITY OR POSITION USING ACOUSTIC OR ULTRASONIC WAVES
|
5J084
|
OPTICAL RADAR SYSTEMS AND DETAILS THEREOF
|
5J090
|
Temperature compensation, source voltage compensation, distortion compensation and feedback
|
5J091
|
Amplifiers 1
|
5J092
|
Amplifiers 2
|
5J097
|
SURFACE ACOUSTIC WAVE ELEMENTS AND CIRCUIT NETWORKS THEREOF
|
5J098
|
NETWORKS USING ACTIVE ELEMENTS
|
5J100
|
Control of amplification and gain control
|
5J103
|
Channel selection circuits, automatic tuning circuits
|
5J104
|
Ciphering device, decoding device and privacy communication
|
5J106
|
Stabilization of oscillater, synchronisation, frequency synthesizers
|
5J108
|
PIEZO-ELECTRIC OR MECHANICAL VIBRATORS, OR DELAY OR FILTER CIRCUITS
|
5J300
|
PULSE GENERATORS IN GENERAL
|
5J500
|
Amplifiers
|