Joseph J Nadan Deceased3619 209Th St, Bayside, NY 11361

4670783, Jun 2, 1987

Dec 21, 1984

6/684546

Joseph S. Nadan - New York NY

North American Philips Corporation - New York NY

H04N 706

358141

A television transmission system capable of transmitting and receiving a high-resolution television signal having a wider than standard aspect ratio, which high-resolution television signal is, in part, compatible with standard television receivers. In an NTSC format, the high-resolution television signal has an active bandwidth of 14. 0 MHz and includes picture frames having 657 scanning lines and a 51/3:3 aspect ratio. This high-resolution television signal is converted into two transmission signals, a first of which being compatible with standard television receivers and including a center low-frequency portion of said high-resolution television picture frame, the number of lines therein having been converted to 525 lines, and a second of which including the remaining information in said high-resolution television signal.

5142576, Aug 25, 1992

May 6, 1991

7/698231

Joseph S. Nadan - New York City NY

Market Data Corporation - New York NY

H04N 7167

380 20

A system for securely providing restricted information having an encoder for transmitting selected update data with respective keys and a plurality of uniquely identified decoders for receiving said update data. When saidd decoder matches the key sent with said update, said decoder receives the update data and appropriately positions said update data in respective pages in a store for subsequent viewing on a video display.

4613903, Sep 23, 1986

Apr 6, 1984

6/597327

Joseph S. Nadan - New York NY

North American Philips Corporation - New York NY

H04N 708

358141

A television system capable of generating a high-resolution television signal having a wider than standard aspect ratio and which is compatible with standard television receivers. In an NTSC format, the high-resolution television signal includes picture frames having a 51/3:3 aspect ratio, 787 scanning lines and 3-90 Hz fields. This television signal is converted into two transmission signals, a first of which being compatible with standard television receivers and including, in a first field, the sum-average of the information from two of the high-resolution television signal fields and, in a second field, information from the remaining high-resolution television field, while the second of which includes the remaining information in the high-resolution television signal.

5321750, Jun 14, 1994

May 8, 1992

7/880582

Joseph S. Nadan - New York NY

Market Data Corporation - New York NY

H04N 7167

380 20

A system for securely providing restricted display information having an encoder-transmitter for transmitting selected update data using information identification codes as enabling reception keys and a plurality of uniquely identified decoder-receivers for receiving the update data for display on a video screen. Authorized decoders are provided with enable reception keys so that subsequently transmitted data having an information identification code matching a reception key at a decoder-receiver may be received for subsequent display on the video screen. Symbolic signaling is used so that enabling a decoder-receiver with a reception key also provides display coordinate information for displaying the update data in the proper relative display location for the video screen of that enabled decoder, so that the update data subsequently transmitted is displayed using that display coordinate information. Tile messaging and cellular micrographic transmission techniques are used to reduce the volume of data transmitted to changed display information (update data), wherein cells of characters are transmitted as one byte of data and cells of pixel data are transmitted a plurality of bytes of data. Each decoder-receiver may have a plurality of video screens separately and uniquely identified such that encoded update data and other messages are transmitted for specific video screens.

4772949, Sep 20, 1988

Feb 20, 1987

7/017307

Joseph S. Nadan - New York NY

North American Philips Corp. - New York NY

H04N 704

358141

A television transmission system capable of transmitting and receiving a high-resolution television signal having a wider than standard aspect ratio, which high-resolution television signal is, in part, compatible with standard television receivers. In an NTSC format, the high-resolution television signal has an active bandwidth of 14. 0 MHz and includes picture frames having 657 scanning lines and a 51/3:3 aspect ratio. This high-resolution television signal is converted into two transmission signals, a first of which being compatible with standard television receivers and including a center low-frequency portion of said high-resolution television picture frame, the number of lines therein having been converted to 525 lines, and a second of which including the remaining information in said high-resolution television signal.

4746981, May 24, 1988

Jun 16, 1986

6/874630

Joseph Nadan - New York NY
Edward Bahr - Maywood NJ
Paul Noble - New York NY

Imtech International, Inc. - New York NY

H04N 514
H04N 5262

358160

A method and apparatus for displaying an interlaced image on a plurality of display screens in which the lines of two fields of the image are replicated a plurality of times in a memory to produce an enlarged image but determined lines are not read out of the memory for the production of the display screen signals, in order to maintain the original spatial relationship between the lines of the two fields. The addressing of the memory may be varied in order to obtain various special effects in the image on the display screen.

4435687, Mar 6, 1984

Jan 26, 1981

6/228527

Joseph S. Nadan - Ossining NY
George C. Kenney - Stamford CT
Marino G. Carasso - Son, NL

North American Philips Corporation - New York NY

H03L 706

331 23

An absolute differentiator receives a self-clocking digital input signal, and its output is applied to a series of delay elements. The outputs of the differentiator and the delay elements are coupled to an OR-gate. The output of the OR-gate is applied to a phase-locked loop to produce a recovered clock signal. The delay elements can be variable with a delay controlled by an output signal from the phase-locked loop, to thereby track a varying center frequency of the digital input signal.

4633294, Dec 30, 1986

Dec 7, 1984

6/678609

Joseph S. Nadan - New York NY

North American Philips Corporation - New York NY

H04N 931

358 11

A method for reducing the scanning line visiblity in the display of a color projection television receiver in which the rasters of scanning lines for the separate color signals are deconverged by vertically shifting the scanning line raster of each color signal with respect to the other color signal. Each projected line of the respective color signals is then derived by a weighted interpolation between two succeeding lines in the incoming television signal, in which the contribution of a first incoming line with respect to a second incoming line is dependent on the amount by which the respective line in the raster of the relevant color signal is vertically shifted. The amounts of vertical shifting of the respective rasters is cyclically rotated between the respective rasters once every picture frame.