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 |
| 7274919 | Radiofrequency transmitter and/or receiver The invention provides a simple solution for a broadband transmitter/receiver for which the working bandwidth is split into at least two non-contiguous sub-bands. The invention uses a filtering means 50 which comprises at least two band-pass filters 51... | 09/25/2007 |
| 7107021 | Method and apparatus for transmitting and receiving status information of forward channel in a mobile communication system supporting selective transmit diversity A mobile station supporting selective transmit diversity (STD) efficiently transmits forward channel status information to a base station in a 1×EV-DV mobile communication system. The mobile station receives signals transmitted from the base station through a plura... | 09/12/2006 |
| 6968168 | Variable oscillator A variable frequency oscillator comprising: an oscillatory circuit for generating a periodic output dependent on the capacitance between a first node and a second node of the circuit, and having a capacitative element connected between the first node and the second ... | 11/22/2005 |
| 6593826 | Wireless phone system with voltage controlled oscillator An RF Voltage Controlled Oscillator (VCO) design having improved power supply noise immunity. More particularly, a VCO resonant circuit that provides a high circuit Q, immunity to noise, and is tunable over multiple distinct bands. The resonant circuit is... | 07/15/2003 |
| 5020146 | Lossy constant bandwidth tuned circuit An amplifier loaded with a constant bandwidth tuned circuit is provided with an output series coil, and with a resistance in series with the output coil and a subsequent load to provide attenuation at high frequencies for maintaining the total overall gai... | 05/28/1991 |
| 4736458 | Receiver provided with an automatic frequency control loop Receiver (1-9) provided with a frequency control loop (2-6) for automatic fine tuning, consecutively incorporating a controllable oscillator (6) which is tunable in frequency by means of a variable capacitance diode (D), a mixer stage (2) to which the sig... | 04/05/1988 |
| 4569085 | Oscillator control circuit in an F.M. receiver The invention relates to a circuit for an FM-receiver having a very low intermediate frequency and a tuning frequency-independent amplitude of the LF output signal. The oscillator frequency is controlled in such a way by a reactance circuit that frequency... | 02/04/1986 |
| 4450588 | Tuning system for a high frequency receiver utilizing a controllable inductor The tuning system for a high frequency receiver, particularly an AM receiver for vehicles, comprises a tunable input resonance circuit having a variable inductance formed by the signal winding of a controllable inductor. The control winding of the inducto... | 05/22/1984 |
| 4321624 | AFT Circuit An automatic fine tuning (AFT) circuit is provided which generates an AFT control signal in response to a video intermedate frequency (I.F.) signal. The I.F. signal is supplied to the input of a current source amplifier, which provides current signals of ... | 03/23/1982 |
| 4271533 | AFC Interface circuit An interface circuit that couples the output of a differential AFC detector to a tuner and in so doing provides a single-ended control signal and a substantially constant reference signal. A bridging circuit combines the differential outputs to effect a s... | 06/02/1981 |
| 4266295 | Continuous tuning control particularly adapted for use in variable frequency receivers and generators This disclosure describes a continuous tuning arrangement for a variable frequency response circuit of the type covering a relatively wide frequency range. Many techniques for accommodating a wide frequency range are known and include synthesizers, wavefo... | 05/05/1981 |
| 4200841 | Preset tuning apparatus using floating gate type field effect device A preset tuning apparatus adapted for selecting a preset channel among a plurality of channels, comprising a tuner including a tuning circuit including a voltage controlled variable capacitance diode, a manually adjustable tuning voltage generator for pro... | 04/29/1980 |
| 3987399 | Radio receiver A radio receiver using an oscillator to generate a desired frequency at equal intervals as a local oscillator is disclosed. The radio receiver includes a time constant circuit initiated by turning on the receiver power supply. A pulse signal generator is ... | 10/19/1976 |
