Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 4354201 | Television system with access control A television system with access control comprises a transmitter and receis. The transmitter comprises a video signal and sound signal formation circuit, means for transmitting these signals and a jamming circuit using a service key. Each receiver compris... | 10/12/1982 |
| 4319286 | System for detecting fades in television signals to delete commercials from recorded television broadcasts A system is provided which responds to a fade in the video and audio components of a television signal from a television receiver which is being recorded by a video tape recorder, the system generating an output which actuates the remote pause control of ... | 03/09/1982 |
| 4305101 | Method and apparatus for selectively recording a broadcast A selective receiving and/or recording technique for broadcast audio and/or video programs where the broadcast signal has a tone code preceding each program segment to which a monitoring-receiving-recording device is responsive, either matching the tone c... | 12/08/1981 |
| 4238794 | Matching circuitry for use with a radar station and a television magnetoscope The invention provides matching circuitry for use with a radar station and television magnetoscope, the latter having a video channel and an audio channel. The matching circuitry enables the audio channel of the magnetoscope to be used for information con... | 12/09/1980 |
| 4222069 | Method of and apparatus for preselecting operation of television or radio receiving and recording apparatus A method of controlling the operation of a recording apparatus for recording video and/or audio signals received in a television and/or radio receiver wherein a data carrier having one or more command tracks associated with a time track and preferably one... | 09/09/1980 |
| 4221930 | FM Defect compensation apparatus In systems which process frequency modulated carrier waves, such as video disc systems, video tape recorder/playback systems and radio systems, there are occasions where the FM signal suddenly drops to a low level. In the case of FM audio signals, these s... | 09/09/1980 |
| 4191978 | Method for adjusting rotary head type magnetic video recording and reproducing apparatus A method for positioning a composite head comprising a control head and an audio head in a rotary head type magnetic video recording and reproducing apparatus at a precise spacing relative to a mounting position of the rotary head is disclosed. A video si... | 03/04/1980 |
| 4188644 | Apparatus for controlling video tape presentation A control system for video tape equipment operable to present video tape audio and visual testimony. The control system has a court monitor and a jury monitor connected to a video tape recorder. A control unit interposed in the cables between the video ta... | 02/12/1980 |
| 4173024 | Audio-visual reproduction carrel Apparatus for selected audio-visual reproduction upon check actuation that consists of a viewing carrel providing comfort and privacy, and having in combination therewith, television playback apparatus, program selection control and money validator for en... | 10/30/1979 |
| 4165522 | Video recorder and playback unit including remotely operable timed fast forward advance There is disclosed a video recorder and playback unit in which video and audio signals broadcast from a conventional television station are encoded on a recording medium. During playback of the medium, the medium is advanced relative to a pickup unit in a... | 08/21/1979 |
| 4144542 | Audio-visual reproduction device The specification describes an audio-visual reproduction device for transmitted light recordings of picture, audio and control signals, in a spiral on a disc-shaped information vehicle. Adjacent to the information vehicle there is an arrangement, includin... | 03/13/1979 |
| 4031548 | Plural receiving and recording television system A combination of a television receiver and a television signal recording and/or reproducing apparatus, such as a so-called video tape recorder, forming a television system for receiving, recording and/or reproducing television signals and displaying image... | 06/21/1977 |
| 4021606 | Hologram apparatus A hologram apparatus comprises a rotary plane with a plurality of holograms concentrically or spirally arranged thereon, a light emitting source, and at least one photodetector for reading out reconstructed images of the holograms. During rotation of the ... | 05/03/1977 |
| 3962532 | Power supply for an audio-video recording system The disclosure relates to a selectively operable power supply for a recording system of the type which includes tuning and intermediate frequency sections for receiving and converting transmitted television signals into composite video and audio signals a... | 06/08/1976 |
| 3956582 | Apparatus for reading a record carrier on which information is recorded in at least one track An apparatus for reading a record carrier on which information is recorded in at least one track is described. By illuminating the record carrier with a spot of light which is greater than the width of the track and by inserting in the path of the radiati... | 05/11/1976 |
| 3944728 | Video information recording and reproduction Methods and apparatus for recording and subsequently reproducing video information at a display scan rate record image fields or other video signal quanta on a recording medium at a first relative recording medium velocity and in accordance with a predete... | 03/16/1976 |
