Bizarre Patents
Vehicular Impact Signaling Device
An apparatus for the deployment of a visible plume to alert other motorists that a proximate motor vehicle has been involved in a collision.
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| Number | Title | Issue Date |
| 4819268 | Transmitter having means for controlling undesired out-of-band radiation An improved transmitter having protection from undesired out-of-band radiation caused by high frequency components in a supplied signal to be transmitted uses means for determining when the supplied signal is such as to cause out-of-band radiation. A resu... | 04/04/1989 |
| 4782531 | Multichannel FM subcarrier broadcast system A multichannel FM subcarrier broadcast system is disclosed which enables the transmission of multiple independent signals by generating independent sidebands of suppressed carriers in the subcarrier band of an FM transmitting station. Transmitting and rec... | 11/01/1988 |
| 4611231 | Signal processing apparatus for a video signal A video signal processing apparatus has an input terminal for receiving an input video signal and a delay line for delaying the input video signal. A first transmission circuit processes the video signal which has been delayed by the delay line and a firs... | 09/09/1986 |
| 4534054 | Signaling system for FM transmission systems A signaling system for FM transmission systems is disclosed that utilizes one or more so-called quadrature subcarriers for transmitting at least one data signal, including signaling tones, digital data, program material, or the like. The signal is modulat... | 08/06/1985 |
| 4493099 | FM Broadcasting system with transmitter identification An FM broadcasting system comprises an FM transmitter for transmitting a multiplex signal which is frequency-modulated on a main carrier wave and an FM receiver for cooperation with said FM transmitter. The multiplex signal comprises: an audio-frequency f... | 01/08/1985 |
| 4485483 | FM Stereophonic system incorporating companding of difference signal An FM stereophonic radio broadcasting system in which stereophonically related audio frequency source signals L and R are matrixed to obtain stereophonic sum and difference signals M and S, respectively. At the transmitter, the difference signal, is compr... | 11/27/1984 |
| 4481658 | FM-broadcasting system with transmitter identification by binary phase-modulated, differentially coded code signal FM-broadcasting system comprising a FM-transmitter (1-16, 32-34) and a receiver (14-31, 35, 36) cooperating therewith, the transmission signal of which comprises a multiplex signal which is frequency-modulated on a main carrier wave, which multiplex signa... | 11/06/1984 |
| 4441199 | Method and apparatus for amplitude limiting a composite signal Two parallel signal paths carry a composite signal having a narrow-band component such as an FM station's composite signal. The first path includes a notch filter that removes the narrow-band component, such as the FM stereo pilot tone, from the composite... | 04/03/1984 |
| 4252995 | Radio broadcasting system with transmitter identification FM radio broadcasting system with transmitter identification by means of a transmitted subcarrier whose frequency is a harmonic of subharmonic of the stereo pilot and which is binary phase modulated with transmitter identification signals. In the transmit... | 02/24/1981 |
| 4246440 | Radio broadcasting system with code signalling FM radio broadcasting is disclosed with code signalling by means of a subcarrier wave in the free frequency range around the stereo pilot on one side of said pilot (or of two subcarrier waves in said frequency range on both sides of the stereo pilot). The... | 01/20/1981 |
| 4207527 | Pre-processing apparatus for FM stereo overshoot elimination An audio processor for an FM stereo system including a peak clipping circuit to prevent overmodulation further includes means responsive to the audio signal before and after the clipping means for detecting the amount of energy lost due to peak clipping a... | 06/10/1980 |
| 4134074 | Dynamic transient response filter A filtering system for use in an FM modulating system. The filtering system provides frequency limiting of an input signal and does not overshoot amplitude limitations thereof. This filtering system includes a first filter and a second filter, separated b... | 01/09/1979 |
| 3934201 | Low power consumption stereo transmitter and receiver system A low power consumption, compact portable stereo radio transmitter and a receiver therefor, the transmitter having two audio processing channels each for receiving inputs from two stereo pickup stations and including amplifier circuits with selector switc... | 01/20/1976 |
