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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 5959503 | Voltage controlled oscillator tuning by metal lid aperture selection A method (100) for tuning a voltage controlled oscillator by changing electrical circuit parasitics includes a first step (102) of providing a voltage controlled oscillator circuit on a circuit board and a plurality of different metal lids each having dif... | 09/28/1999 |
| 5933316 | Method for forming a titanate thin film on silicon, and device formed thereby A method for forming a dielectric layer onto a substrate having a silicon surface includes initially depositing an oxidizable metal thin film onto the surface and thereafter depositing a thin film of a metal titanate compound, such as the zirconium titana... | 08/03/1999 |
| 5933062 | Acoustic wave ladder filter with effectively increased coupling coefficient and method of providing same An acoustic wave ladder filter (30) with lossy inductances (42) connected in parallel with resonators (40). Shunt sections (36,37) of the ladder filter (30) include impedance inverters having pass frequencies within the stopband of series resonators (33,3... | 08/03/1999 |
| 5929721 | Ceramic filter with integrated harmonic response suppression using orthogonally oriented low-pass filter A ceramic filter (100) with integrated harmonic response suppression has a ceramic monolithic block filter having a predetermined passband defined by tuned resonators located between an input and an output (116); and at least one of a harmonic trap filter... | 07/27/1999 |
| 5928598 | Method of making a microelectronic device package A method (38) for packaging a microelectronic device (10) and a device (10) packaged by the method (38). The method (38) includes a step of providing (42) a first material (16) on an active surface of the microelectronic device (10). The first material (1... | 07/27/1999 |
| 5903087 | Electrode edge wave patterns for piezoelectric resonator A resonator (104) including a piezoelectric plate (102) with an electrode (108) having a random pattern (100) along a portion of an edge of the electrode (108). The random pattern (100) dampens or destructively interferes with undesirable and inharmonic v... | 05/11/1999 |
| 5892417 | Saw device package and method A method for packaging an acoustic wave filter die, and an acoustic wave filter die packaged by the method. The method includes steps of providing an acoustic wave filter die having an active area disposed on a first surface thereof, providing a leadframe... | 04/06/1999 |
| 5877042 | Glass/Metal package and method for producing the same A method of producing a glass/metal package where a glass portion of the package is built up around a provided leadframe (10) using applications of solderable and glass pastes (20) which are subsequently fired (30). The glass paste and leadframe are chose... | 03/02/1999 |
| 5866968 | Single-input phase locking piezoelectric transformer driving circuit A circuit (10) for driving a piezoelectric transformer (12) in a phase locked mode without using an external reference signal. The circuit (10) utilizes a 555 timer circuit operated in a stable mode which is responsive to a feedback phase signal (18) coup... | 02/02/1999 |
| 5856766 | Communication device with a frequency compensating synthesizer and method of providing same A communication device including a plurality of frequency synthesizers (24, 28, 30). At least one of the frequency synthesizers (24) is driven with a reference frequency from a crystal oscillator (58). The at least one frequency synthesizer (24) includes ... | 01/05/1999 |
| 5856763 | Dual frequency voltage controlled oscillator A voltage controlled oscillator (10) operable on two widely separated frequency bands of 800 MHz and 1.9 GHz, for example. The two operable frequency modes are controlled by changing base bias voltages on at least two transistors with commonly connected e... | 01/05/1999 |
| 5854579 | Saw filter using low-pass configuration and method of providing the same An acoustic wave resonator filter (10) provides series and shunt resonator elements (22, 24) in a ladder network. The series elements (22) are configured in a lowpass configuration. The shunt elements (24) act as impedance inverters in a passband of the f... | 12/29/1998 |
| 5821820 | Dual band voltage controlled oscillator A voltage controlled oscillator operable on two widely separated frequency bands, such as 900 MHz and 1.8 GHz for example. The voltage controlled oscillator includes two negative resistance generators (32, 34) which share a common tunable tank circuit (26... | 10/13/1998 |
| 5815054 | Surface micromachined acoustic wave piezoelectric crystal with electrodes on raised ridges and in spaces therebetween A high frequency acoustic wave piezoelectric device (10) having parallel etched channels cut into a surface of a piezoelectric substrate so as to form micromachined ridges (20). Top electrodes (30) are located on tops (26) of the ridges (20) and bottom el... | 09/29/1998 |
| 5793266 | Differential input and/or differential output, transversely-coupled surface acoustic wave filter A method for making an acoustic wave device (500, 600, 701, 801, 901, 1001), and an acoustic wave device (500, 600, 701, 801, 901, 1001) made by the method. The method comprises steps of providing a substrate (11) capable of supporting acoustic wave propa... | 08/11/1998 |
| 5778306 | Low loss high frequency transmitting/receiving switching module A low loss high frequency transmitting/receiving switching module (100) having an input and output port (106,110), that individually may be connected to an antenna or external port (108,112) by applying an appropriate bias potential to a switching circuit... | 07/07/1998 |
| 5777524 | Temperature compensation circuit for a crystal oscillator and associated circuitry A temperature compensation circuit (10) for a crystal oscillator module (12) used in a communication device (200). An existing microcontroller (210) of the communication device (200) is used to provide temperature compensating digital data (30) for a crys... | 07/07/1998 |
| 5777521 | Parallel accumulator fractional-n frequency synthesizer A frequency synthesizer (10) including a synthesizer loop (12) with a fractional-N divider (14), and including a divider control circuit (18) and a combining circuit (22). The divider control circuit (18) provides a variable divide value (20) to the divid... | 07/07/1998 |
| 5760526 | Plastic encapsulated SAW device A plastic molded SAW device (50) is provided by flip-chipping a SAW die (28) onto a die flag (16) of a lead frame (10) and attaching the two (28, 10) together by an annular ring (26, 60, 62) of an insulating material or other solder, so that an active cen... | 06/02/1998 |
| 5640746 | Method of hermetically encapsulating a crystal oscillator using a thermoplastic shell A method of hermetically encapsulating a crystal oscillator using a thermoplastic shell. A first step (102) includes molding a thermoplastic shell defining a cavity around a periphery of oscillator locations on a lead frame. A second step (104) includes a... | 06/24/1997 |
