1
Moon Warren D, Weiner Richard J, Hansen Robert A, Linde Robert N: Broadcast signal identification system. The First National Bank of Boston, O Connell Robert F, November 11, 1975: US3919479 (418 worldwide citation)

A process for automatic electronic recognition and identification of programs and commercial advertisements broadcast on television and radio wherein a digitally sampled reference signal segment derived from either the audio or video portion of the original program content to be identified is compar ...


2
Rainger Peter: Television system with transmission of auxiliary information. British Broadcasting Corporation, O Connell Robert F, December 16, 1975: US3927250 (111 worldwide citation)

Digitally encoded data such as stock and other market reports is multiplexed on to a television broadcast signal. In order to allow a lot of pages of data to be transmitted, the pages are transmitted at intervals such as 1-minute intervals. The receiver can be preset to display the data available at ...


3
Bussgang Julian J, Gish Herbert: Signal processing system. Signatron, O Connell Robert F, September 30, 1975: US3909721 (101 worldwide citation)

A signal processing system for processing an analog signal which has been quantized by suitable sampling techniques, different portions of the quantized data information having different significances. The processing is accomplished so as to improve the overall error characteristics of the system wh ...


4
Curry Renwick E: Vehicle brake light control system. Massachusetts Institute of Technology, Smith Jr Arthur A, O Connell Robert F, Santa Martin M, November 5, 1974: US3846749 (63 worldwide citation)

A vehicle brake light control system, useful in an automobile, for example, which system causes the brake lights of the vehicle to flash on at a rate dependent on the sum of the deceleration of the vehicle and the derivative of such deceleration when the vehicle is decelerating without the applicati ...


5
Williamson Richard C, Stern Ernest: Surface wave devices. Massachusetts Institute of Technology, Smith Jr Arthur A, Santa Martin M, O Connell Robert F, May 13, 1975: US3883831 (56 worldwide citation)

A device for handling surface elastic waves using a plurality of reflective elements, such as grooves, on the surface thereof the dimensional characteristics of which may be arranged to vary in a predetermined manner from element to element to provide a bandpass filtering action on a surface wave re ...


6
Dolby Ray Milton: Compressors, expanders and noise reduction systems. O Connell Robert F, September 2, 1975: US3903485 (32 worldwide citation)

A signal processing system for providing compressor and expander operation which system includes a main, or straight through, signal path and a further signal path in parallel therewith. The further path derives its input from the input to the main path or from some later point in the signal path. T ...


7
Catt Ivor: Digital integrated circuits. O Connell Robert F, October 14, 1975: US3913072 (30 worldwide citation)

In order to eliminate the expense of dicing an integrated circuit into chips, testing the chips, selecting, packaging and retesting the chips, the wafer is left undiced and each chip includes switching and control circuits which enable a chip to be linked to any one of its neighbours. A chain of goo ...


8
Gundry Kenneth James: Adjustable equalizers useable in audio spectrum. Dolby Laboratories, O Connell Robert F, November 18, 1975: US3921104 (24 worldwide citation)

In an equalizer using multiple, parallel-connected band-pass filters, the filters are removed from the signal path and connected to tap off inputs from the signal path and feed back outputs to combining means in the signal path. Adjustable potentiometers on the input or output side of the filters ad ...


9
Clarke Maurice George: Manufacturing electric devices having sealed envelopes. Thorn Electrical, O Connell Robert F, October 21, 1975: US3913999 (23 worldwide citation)

A method of dosing an envelope of an electric device such as a lamp with a gaseous or volatile substance, e.g. mercury in a discharge lamp, entails containing the substance inside a sealed capsule and putting the capsule inside the envelope, the dosing substance being released into the envelope at s ...


10
Carabott Carmel John Angelo, Ross Jaffray Stuart: Stencil stamp with air valve and protective stencil. Stenprint, O Connell Robert F, June 3, 1975: US3886863 (18 worldwide citation)

This invention relates to a stencil stamp which can be used for duplicating or printing, and which comprises an ink reservoir, a base to which a pad is attached, and a stencil attached to a frame. According to the invention, the stencil is placed against the ink soaked pad and is held there by the v ...