1
Stuart J Best, Nigel Johnson, Adrian M Sandford: Signal identification system. Thorn EMI, Fleit Jacobson Cohn Price Holman & Stern, May 12, 1992: US05113437 (284 worldwide citation)

A signal identification system, suitable for producing an identification code on a sound track recording is described. The system includes an encoder 209 effective to eliminate a variable sequence of frequency bands from an audio signal and insert a sequence of code signals into the frequency bands. ...


2
Stuart J Best, Reginald A Willard: Signal identification. Thorn Emi, Fleit Jacobson Cohn Price Holman & Stern, October 24, 1989: US04876617 (262 worldwide citation)

Equipment for labelling audio signals with identification information has an encoder which inserts the binary information into two very narrow notches of center frequencies 2883 and 3417 Hz, between semi-tones in the tonic scale to minimize music breakthrough into the decoding circuits, and to ensur ...


3
Alan F Cattell: Method of measuring the concentration of a substance in a sample solution. Thorn EMI, Keck Mahin & Cate, April 27, 1993: US05206145 (192 worldwide citation)

An apparatus is provided for measuring the concentration of a substance in a sample solution. The apparatus comprises first electrode means, second electrode means and an enzyme channel between the first and second electrode means. The enzyme channel contains an enzyme for catalyzing a reaction of t ...


4
Barnes Barnard Thomas Peter, Topping Douglas Randall Peter: Television and distribution network.. Emi Thorn, March 21, 1984: EP0103438-A1 (188 worldwide citation)

A cable television distribution network has a central store and control unit 1 connected to a number of main transmission lines 2 from which are tapped spurs 3 linked to domestic television receivers (of which only one, 4, is shown). In operation, the central unit 1 sends command signals in teletext ...


5
Holt Lyn, Maufe Barry Gordon, Wiener Anthony: Encoded marking of a recording signal. Emi Thorn, April 20, 1988: GB2196167-A (187 worldwide citation)

A marking signal 1 identifying the owner of a recording and formed by binary elements passes from a data store 2 to code generator 3, which translates each like binary element into a pseudo random sequence of binary elements, to produce an encoded marking signal and then, via low pass filter 4 and m ...


6
Hounsfield Godfrey Newbold: METHOD AND APPARATUS FOR MEASURING X- OR .gamma.-RADIATION ABSORPTION OR TRANSMISSION AT PLURAL ANGLES AND ANALYZING THE DATA. EMI, December 11, 1973: US3778614 (162 worldwide citation)

In apparatus for examining a body by means of X or Y radiation, a two-dimensional matrix of elements of the body is exposed to radiation from a number of directions and the transmission of the radiation by a plurality of paths of small cross-sectional area through the body is measured, the direction ...


7
Barry G Maufe: Marked recorded signals. Thorn EMI, Fleit Jacobson Cohn Price Holman & Stern, January 7, 1992: US05079648 (156 worldwide citation)

An apparatus for monitoring the marking of a recorded signal includes a data store containing marking information and a code selector for selecting any one of three orthogonal codes for marking the recorded signal and a demodulator for demodulating the marked signal and comparing this with the ortho ...


8
Burton Richard William: End fire aerial.. Emi Thorn, August 30, 1989: EP0330303-A2 (135 worldwide citation)

An end-fire aerial (6) includes a broadside aerial array (7), for example a horn antenna. A block (9) of dielectric foam material extends outwards from the array (7), in a direction perpendicular to the array. The block (9) is designed to be of such dimensions, and of a suitably low dielectric const ...


9
David J Gibbons, Andrew T Rowley, Bernard J Green, Ian M Green: Display device incorporating brightness control and a method of operating such a display. Thorn EMI, Fleit Jacobson Cohn Price Holman & Stern, June 16, 1992: US05122791 (120 worldwide citation)

A display device is formed by a matrix of surface-stabilized bi-stable ferroelectric liquid crystal elements each being separately settable by a matrix driver. To provide brightness control or color in the display, all the elements of the matrix are set in accordance with a portion of a signal for d ...


10
John E A Shaw, Alastair Sibbald: Chemical-sensitive semiconductor device. Thorn Emi, Fleit Jacobson Cohn & Price, August 16, 1988: US04764797 (100 worldwide citation)

A chemical-sensitive semiconductor device in the form of a chemical-sensitive field effect transistor, suitable for testing relatively small volumes of a fluid analyte, comprises a substrate provided with a passageway, interconnecting its major surfaces, along which the analyte can pass. Drain and s ...