Patents
| Year | Patent Description | Patent Number |
|---|---|---|
| 1931 | Acoustic Device For Sound Pick-up (Ellipsoid Microphone) |
1,814,357 |
| 1932 | Apparatus for Converting Sound Vibrations Into Electrical Variations (First Practical Ribbon Microphone) |
1,885,001 |
| 1932 | System Responsive to The Energy Flow of Sound Waves (Pressure and Velocity Sound Level Meter) |
1,892,644 |
| 1932 | Sound Pick-Up Device (Unidirectional Cardioid Microphone) |
1,892,645 |
| 1933 | System For the Conversion and Transfer Of Energy (Condenser Microphone Step-Up Transformer With A Remote Preamplifier.) |
1,897,732 |
| 1934 | Acoustic Device (Loudspeaker Horn) |
1,984,542 |
| 1935 | Loud Speaker and Method of Propagating Sound (Passive Radiator Loud Speaker) |
1,988,250 |
| 1935 | Acoustic Device (Double Voice Coil Loudspeaker) |
2,007,748 |
| 1936 | Electroacoustical Device (Ribbon Telephone Microphone/Speaker) |
2,064,316 |
| 1937 | Sound Reproducing Apparatus (Multi-Cellular Horn) |
2,102,212 |
| 1937 | Acoustical Device (Small Portable Closed Back Ribbon Microphone) |
2,102,736 |
| 1938 | Microphone | 2,113,219 |
| 1938 | Microphone And Circuit (Microphone Mixer By Verifying Field Coil Strength) |
2,119,345 |
| 1940 | Loud-Speaker (Multiple Flare Horn) |
2,203,875 |
| 1940 | Loud-Speaker (Hybrid Bass-Horn/Bass-Reflex Design) |
2,224,919 |
| 1941 | Electroacoustical Apparatus (Line Microphone "Shotgun Microphone") |
2,228,886 |
| 1941 | Acoustical Apparatus (Woofer Surround) |
2,234,007 |
| 1942 | Signal Translating Apparatus (Multiple Co-Axial Loudspeaker Designs) |
2,269,284 |
| 1942 | Electroacoustical Apparatus (Design of the RCA 77 Ribbon Microphone) |
2,271,988 |
| 1942 | Radio Remote Control System (Using Different Frequencies of Sound) |
2,293,166 |
| 1942 | Electroacoustical Apparatus (Line Array Microphone) |
2,299,342 |
| 1945 | Signal Translating Apparatus (Sub-Aqueous Submarine Microphone) |
2,390,847 |
| 1947 | Magnetostrictive Signal Translating Apparatus (Rugged Sub-Aqueous Submarine Microphone) |
2,414,699 |
| 1947 | Signal Translating Apparatus (Sub-Aqueous Submarine Pressure Compensated Speaker) |
2,429,104 |
| 1949 | Signal Transmission and Receiving Apparatus (Ultrasonically Power Wireless Earphone) |
2,461,344 |
| 1949 | Air Suspension Loudspeaker | 2,490,466 |
| 1950 | Synthetic Reverberation System | 2,493,638 |
| 1950 | Diffraction Type Sound Absorber (Suspended) |
2,502,016 |
| 1950 | Diffraction Type Sound Absorber Covered By A Membrane | 2,502,018 |
| 1950 | Diffraction Type Sound Absorber With Complementary Fitting Portions | 2,502,019 |
| 1950 | Diffraction Type Sound Absorber With Fiberglass Walls (Cylinder) |
2,502,019 |
| 1950 | Single Element, Unidirectional, Dynamic Microphone (With Pattern Control) |
2,512,467 |
| 1950 | Feedback Controller System For Recording Cutters And the Like
|
2,516,338 |
| 1951 | Directional Microphone (Coincident Pair Of Ribbon Microphones With Horizontal Pattern Control) |
2,539,671 |
| 1951 | Coaxial Dual-Unit Electrodynamic Loud-Speaker (Improved Version) |
2,539,672 |
| 1951 | Transformerless Audio Output System (Tube Amplifier) |
2,548,235 |
| 1951 | Means For Improving The Sensitivity And The Response Characteristics Of Velocity Microphones |
2.566,039 |
| 1951 | Line Type Pressure Responsive Microphone | 2566,094 |
| 1951 | Velocity Type Microphone (Acoustic High Frequency Equalizer |
2,572,376 |
| 1953 | Suspension System For Dynamic Microphones | 2,628,289 |
| 1953 | Distortion Analyzing Apparatus (Improvement) |
2,629,000 |
| 1953 | Second Order Gradient Directional Microphone | 2,640,110 |
| 1953 | Portable Radio With A Bass-Reflex Cabinet | 2,642,948 |
| 1953 | Noise Discrimination System | 2,645,648 |
| 1953 | Cabinet For Sound Translating Apparatus | 2,649,164 |
| 1953 | Multisection Acoustic Filter (Filtering Out Frequencies above 5,000 Hz) |
2,656,004 |
| 1954 | Uniaxial Microphone | 2,680,787 |
| 1954 | Noise Reduction System | 2,686,296 |
| 1954 | Sound Translating Apparatus (Second Speaker Inside The Cabinet) |
2,688,373 |
| 1954 | Coaxial, Dual Unit, Electrodynamic Loud-Speaker (Improved Magnetic Structure) |
2,699,472 |
| 1955 | Velocity Microphone (Improved Magnetic Structure) |
2,699,474 |
| 1955 | Dynamic Microphone (Compact Design) |
2,718,272 |
| 1956 | Unidirectional Microphone (Low Cost Ribbon Design) |
2,751,441 |
| 1956 | Acoustical Resistance For Pressure Type Microphones | 2,773,130 |
| 1957 | Methods Of Restoring Phonograph Records (Re-synthesizing The Recording) |
2,808,466 |
| 1957 | Transducer With Fluid Filled Diaphragm Suspension | 2,814,353 |
| 1957 | Loudspeaker Structure (Sculpted Cone For High Frequency Pattern Control) |
2,825,823 |
| 1958 | Combination Chassis And Loudspeaker | 2,838,607 |
| 1958 | Directional Microphone (Using Two Microphones To Increase Directivity) |
2,854,511 |
| 1958 | Noise Discriminator, Threshold Type | 2,645,684 |
| 1958 | Music Synthesizer (Electronic) |
2,855,816 |
| 1958 | Wide Range Dynamic Phonograph Pickup | 2,858,375 |
| 1959 | Acoustic Apparatus (Improved Acoustic Labyrinth) |
2,870,856 |
| 1959 | Signal Frequency Change Detector | 2,918,667 |
| 1960 | Vibration Control Apparatus | 2,964,272 |
| 1961 | Apparatus For Speech Analysis and Printer Control Mechanisms | 2,971,057 |
| 1961 | Electronic Sound Absorber | 2,983,790 |
| 1961 | Directional Electrostatic Microphone | 3,007,012 |
| 1961 | Music Composing Machine | 3,007,362 |
| 1963 | Stereophonic Loudspeaker | 3,104,729 |
| 1968 | Voiced Sound Fundamental Frequency Detector | 3,400,215 |
Read more about this topic: Harry F. Olson