Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 8150034 | Method and system for transmitting data from a first data processing device to a second data processing device A method and a system for transmitting data from a first data processing device to a second data processing device, wherein the first data processing device has a display device. The second data processing device generates an encrypted input mask and transmits it to... | 04/03/2012 |
| 7403617 | System and method for copy protection for digital signals Embodiments of the present invention provide for the copy protection of distributed material after conditional access is applied, regardless of where the material is distributed. The solutions described provide the advantage of being sufficiently simple in implement... | 07/22/2008 |
| 7391866 | Broadcast apparatus and reception apparatus for providing a storage service by which scrambled content is stored and descrambled using scrambling key list A reception apparatus includes: a reception unit for receiving the scrambled content, the scrambled content being scrambled so that a predetermined unit of scrambled content is descrambled using a descrambling key corresponding to the predetermined unit of scrambled... | 06/24/2008 |
| 7275163 | Asynchronous configuration One or more embodiments of the invention provide a method, apparatus, and article of manufacture for providing access to digital services. Configuration information that has been transmitted asynchronously is received in a security component (that is configured to c... | 09/25/2007 |
| 7218737 | System and method for an adaptive state machine to control signal filtering in a serial link A method for adaptively filtering a control signal in a serial link includes monitoring for a blanking interval in a video stream having an associated clock signal and monitoring for an occurrence of a VSYNC signal once the blanking interval has started. ... | 05/15/2007 |
| 7218855 | System and method for communicating optical signals to multiple subscribers having various bandwidth demands connected to the same optical waveguide The present invention is generally drawn to optical network architecture that can include a multi-subscriber optical interface that can service a plurality of subscribers that are located in close proximity relative to one another. For example, the multi-subscriber ... | 05/15/2007 |
| 7148424 | Disposable electronic devices with deconstructable construction and method A disposable electronic device has a body constructed of juxtaposed lengths of an elongate, ribbon-like substrate of dielectric material secured together to establish a multiple-layered self-sustaining structure, and circuitry formed on the substrate. At least a por... | 12/12/2006 |
| 7120144 | Universal application decode engine A universal application decode engine that can be programmed to decode packet streams and identify the application which is generating the packet streams is disclosed. The universal application decode engine comprises a packet receiver, a state machine execution eng... | 10/10/2006 |
| 7117128 | Method and apparatus for digital signal filtering A Q-Filter is a reconfigurable technique that performs a continuum of linear and nonlinear filtering operations. It is modeled by unique mathematical structure, utilizing a function called the Q-Measure, defined using a set of adjustable kernel parameters to enable ... | 10/03/2006 |
| 7084718 | Band elimination filter, filter device, antenna duplexer and communication apparatus A band elimination filter includes an input terminal and an output terminal. A capacitor is coupled between a first terminal connected to the input terminal and a second terminal connected to the output terminal. The first terminal is grounded only via a first groun... | 08/01/2006 |
| 7075389 | Method and apparatus for achieving broadband matching of narrow-band resonator filter impedances to loads and sources A circuit for matching the impedance of a narrow-band resonator filter presented to a port over a broad range of frequencies employs a second resonator that has substantially the same transfer characteristic as the resonator filter. The resonator filter is isolated ... | 07/11/2006 |
| 6971008 | Authorization of services in a conditional access system A cable television system provides conditional access to services. The cable television system includes a headend from which service “instances”, or programs, are broadcast and a plurality of set top units for receiving the instances and selectively decrypting t... | 11/29/2005 |
| 6940936 | Alternate timing signal for a vestigial sideband modulator A remodulator timing signal (35) is generated by a phase locked loop (33) which is coupled to a broadcast vestigial sideband signal (5). Within the signal (5) is highly accurate timing data which is coupled to a demodulator (31). T... | 09/06/2005 |
| 6654887 | Steganography decoding methods employing error information Media content, such as imagery (including video) and audio, can be encoded to convey hidden information (steganographic encoding) for a variety of purposes, including communication of auxiliary information (e.g., copyright data), authentication, tamper de... | 11/25/2003 |
| 6425082 | Watermark applied to one-dimensional data In the process of embedding watermark information in one-dimensional source data, first spread one-dimensional data x(t) is generated by subjecting one-dimensional source data s(t) to spectrum-spreading operation using a PN sequence g(t). This first sprea... | 07/23/2002 |
| 6292567 | Sync suppression television security system with addressable sync restoration A television transmission security system, including scrambling a television signal by suppressing at least one of the horizontal sync pulse and vertical blanking interval of the television signal; transmitting the scrambled television signal; generating,... | 09/18/2001 |
| 6272634 | Digital watermarking to resolve multiple claims of ownership A method and apparatus for digital watermarking to resolve multiple claims of ownership is disclosed. According to one embodiment of the invention, a first watermark requiring the host data for detection is embedded into the host data. A second watermark ... | 08/07/2001 |
| 5450454 | Coding and decoding a modulated radio frequency signal The invention relates to a method for coding and decoding a radio frequency signal, modulated with a TV program or other message and transmitted from a transmitting center to a plurality of receiver locations, where the coding is effected by shifting, at ... | 09/12/1995 |
| 5446795 | Universal decoder for television signal scramble systems A universal decoder for scrambled television signals in which the signals are processed in a circuit by converting them to other frequencies and then removing the scrambling signal. One method uses one or more narrow filters at a fixed frequency with the ... | 08/29/1995 |
| 5303295 | Enhanced versatility of a program control by a combination of technologies A program control system for controlling access to premium programming and/or premium channels comprises a program control apparatus which may incorporate one or more subscriber modules. The subscriber modules may use one or more different types of progra... | 04/12/1994 |
| 5282248 | Time limited signal conduction system A time limited signal conduction switch 13 powered by an internal energy source 16 with a given life span. A lithium inorganic cell 16 is used as the internal energy source and is coupled to a specially designed switch 13 which allows signal conduction fo... | 01/25/1994 |
| 5249228 | Cable television signal scrambling system In a cable television system an interferer signal is inserted into the video signal for scrambling purposes except during a vertical blanking reference interval containing a reference signal for use by a video equalizer in a television receiver to help re... | 09/28/1993 |
| 5235640 | Master decoder for television signal scramble systems A master decoder for scrambled television signals in which the signals are processed in a circuit by converting them to other frequencies and then removing the scrambling signal. One method uses one or more narrow filters at a fixed frequency with the tel... | 08/10/1993 |
| 5233652 | Selective off-premises jamming for premium CATV service Selective off-premises jamming for premium CATV service is provided by using continuously running fixed-frequency oscillators (19.1-19.n) for generating jamming signals at each of a plurality of distribution locations (13). The frequency of each oscillato... | 08/03/1993 |
| 5208854 | Picture carrier controlled automatic gain control circuit for cable television interdiction or jamming apparatus An off-premises i.e. a negative or positive trap, jamming cable television or interdiction system, includes a picture carried controlled automatic gain control circuit. A broadband television signal output of a variable gain device is distributed by a rad... | 05/04/1993 |
| 5068893 | Television signal processing network for subscription television jamming signals Networks which remove the jamming signal from the television signal supplied to subscribers for a premium T.V. channel in a cable (CATV) or other subscription television system utilizes surface accoustic wave (SAW) devices arranged to provide a broadband ... | 11/26/1991 |
| 5027399 | Signal switching apparatus Apparatus is provided for switching traps in and out of a cable television signal path. A plurality of double pole double throw switches is connected in series with the signal path. Each switch has a first actuated position, a second actuated position, an... | 06/25/1991 |
| 4939779 | Temperature compensated trap filter A temperature stable television signal trap filter device is easily produced in a wide range of temperature compensating values using commercially available components for securing pay television systems. The trap filter has a series pole and a shunt pole... | 07/03/1990 |
| 4903297 | Restricted access television transmission system A Television Signal Transmission Security System which provides a higher degree of security then previously possible by utilizing encoding and decoding technology which effectively prevents pirating by amateurs or experimenters. The television signal tran... | 02/20/1990 |
| 4841569 | Secure video distribution system A video distribution system (e.g., CATV or MATV) employs at least one channel having a reception-defeating jamming signal which changes frequency periodically or, preferably, randomly. The signal originating head end distributes information characterizing... | 06/20/1989 |
| 4827509 | CATV receiver In a CATV receiver for receiving scrambled television signal, then de-scrambling it to original television signal responsive to key pulses contained in the scrambled television signal, and then outputting it at a predetermined frequency band, said receive... | 05/02/1989 |
| 4825467 | Restricted access television transmission system A Television Signal Transmission Security System which provides a higher degree of security then previously possible by utilizing encoding and decoding technology which effectively prevents pirating by amateurs or experimenters. The television signal tran... | 04/25/1989 |
| 4748667 | Jamming signal scrambling and descrambling systems for CATV Scrambling and descrambling systems utilizing jamming signals provide improved pictures with minimal distortion due to ghosts and artifacts. The television signal is combined with a jamming signal or signals located preferably in the vestigial sideband (V... | 05/31/1988 |
| 4633309 | Cable television master/slave decoder control A method of controlling the operation of slave decoders in a cable television distribution system having a central control computer; in which each subscriber location having a slave decoder also has a master decoder; in which there is a control message co... | 12/30/1986 |
| 4623918 | Pay television system utilizing multi-frequency passive filters Selected interference frequency signals are inserted into the video or RF signal at the transmitter for scrambling purposes, either singly or in pairs. At the receiving end the signals are decoded by use of filters matched to the transmitted signal. The s... | 11/18/1986 |
| 4623919 | Method and system for controlling access to transmitted modulated electromagnetic wave carried information A method and system for making possible enforceable subscription available electromagnetically transmitted communications. Mailable receiver tuning components are described which serve to make receivers operable in the presence of a control signal, said s... | 11/18/1986 |
| 4580161 | Cable television subscriber control system including addressable filters having a variable pole A filter for use in a cable television system for filtering out a given channel comprising a two pole filter, said filter including one pole which is fixed at the center frequency to be tuned out and a second variable pole responsive to an input voltage, ... | 04/01/1986 |
| 4575753 | Method of and apparatus for scrambling and decoding television and similar signals with wobbulating trapping Television or similar picture scrambling or the like wherein narrow trapping of the visual carrier is effected with one-direction FSK-FM modulated wobbulation of the visual carrier, preferably alternately at different multiples of the horizontal synchroni... | 03/11/1986 |
| 4567516 | Special program decoding of scrambled subscription television transmissions This disclosure is concerned with a limited time operative decoder for special scrambled television program transmissions involving a voltage source for energizing the decoder of limited time effectiveness adapted to energize the decoder only during the l... | 01/28/1986 |
| 4398214 | Wired television broadcasting system There is disclosed a wired television system comprising a source of television signals supplying signals to a transmission network, subscriber stations connected to the network, means for preventing reception of transmitted signals by at least one subscri... | 08/09/1983 |
