Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7541946 | Relaxation oscillator based keypad decoder The keypad interface element of this invention uses a relaxation oscillator and a digital keypad processor having a counter/timer to decode specific keys. The RC portion of the relaxation oscillator includes a resistance ladder and a set of momentary on pushbutton s... | 06/02/2009 |
| 7339499 | Keypad signal input apparatus Keypad apparatus for registering signals corresponding to data that a user enters by pressure on keys of an array in a surface extending in two dimensions. The elements of first and second sets of impedance elements (R) are connected in series through respective int... | 03/04/2008 |
| 7265699 | Nine-position resistor ladder switch assembly A switch assembly is provided for use on a vehicle having a source of supply voltage. The assembly comprises a switching network having an input terminal configured to be coupled to the supply voltage and an output terminal. The network comprises: (1) nine series-co... | 09/04/2007 |
| 7248195 | Methods and apparatus for multiplexed digital inputs using an analog-to-digital converter A multiplexing circuit uses parallel-configured switch/resistor pairs in a voltage divider network in such a way that a single analog-to-digital input can be used to specify the state of more than one switch or other component. One circuit includes a reference volta... | 07/24/2007 |
| 7196640 | Relaxation oscillator based keypad decoder The keypad interface element of this invention uses a relaxation oscillator and a digital keypad processor having a counter/timer to decode specific keys. The RC portion of the relaxation oscillator includes a resistance ladder and a set of momentary on pushbutton s... | 03/27/2007 |
| 7064682 | Relaxation oscillator based keypad decoder The keypad interface element of this invention uses a relaxation oscillator and a digital keypad processor having a counter/timer to decode specific keys. The RC portion of the relaxation oscillator includes a resistance ladder and a set of momentary on pushbutton s... | 06/20/2006 |
| 7054205 | Circuit and method for determining integrated circuit propagation delay A circuit and method is provided for determining the delay of an integrated circuit common associated with chip-to-chip variations in the manufacturing process, changes in operating voltage, and fluctuations in temperature. A clock signal is inverted, thus generatin... | 05/30/2006 |
| 6912605 | Method and/or apparatus for implementing security in keyboard-computer communication A method for altering timing between transmissions of an input device comprising the steps of (A) receiving a plurality of inputs from the input device, (B) altering the timing between the inputs and (C) presenting the altered inputs in a potentially insecure enviro... | 06/28/2005 |
| 6715086 | Data processing system and method having time-span support for input device driver A time-enhanced input device driver for a data processing system is capable of generating time-enhanced output in response to input signals. The input device driver receives a first input-event signal followed by a second input-event signal. In response to the secon... | 03/30/2004 |
| 6603410 | Reproducing arrangement for the reproduction of compressed data in a multi-speed reproducing mode A reproducing arrangement (1; 14) is adapted to reproduce compressed data (KD) included in data blocks (DB) of a data stream (DS) in a normal speed reproducing mode and in a multi-speed reproducing mode. The compressed data (KD) included in each data bloc... | 08/05/2003 |
| 6538595 | System and method for using infrared remote control packet delivery in a wireless keyboard having a pointing device An infrared (IR) keyboard having a communication protocol and a method for operating same includes circuitry for converting a standard recognized keystroke into a corresponding IR data word for transmission to an IR receiver. The IR keyboard includes circ... | 03/25/2003 |
| 6369803 | Active edge user interface An active edge user interface includes dynamically configurable flexible touch areas positioned near the perimeter of a display to support interactive communication between a user and a user environment for flexible active touch areas surrounding a displa... | 04/09/2002 |
| 6212412 | System and method for character case control in a wireless communication device A technique to switch between upper and lowercase alphabetic characters in a wireless communication device measures the period of time in which a numeric key is held in the depressed position by the user. If a numeric key is pressed by the user for a peri... | 04/03/2001 |
| 6184805 | Apparatus and a method for keyboard encoding A device for use in an apparatus, preferably a radiotelephone, is equipped with a plurality of keys. Upon activation of a key, the device detects which key has been activated. The device includes a signal generating unit which generates an oscillating sig... | 02/06/2001 |
| 4891786 | Stroke typing system A storage method and control system for creating linguistic expressions such as natural language text by both sequential and simultaneous keypresses. The system controls a programmable digital processor to receive keypresses from the operator and to trans... | 01/02/1990 |
| 4814741 | Digital remote control device A digital remote control device for use in a transmitter capable of transmitting an end code following each transmission code, which includes a counting circuit for counting the number of transmission operations performed by pressing a key or keys on the ... | 03/21/1989 |
| 4680729 | Method and apparatus for storing and updating user entered command strings for use with otherwise unassigned softkeys The assignment of user entered strings to blank softkeys within a node or menu is automatic. As the user enters a command string, the new information is checked against the information on all of the softkeys in the node. If a match is found, and that matc... | 07/14/1987 |
| 4673919 | Manual control device Improvements in a manual control device wherein an incremental touch key or a decremental touch key is depressed by hand so as to bring a manipulated value and a set value into agreement. The manual control device comprises a pressure sensor which convert... | 06/16/1987 |
| 4670747 | Alphanumeric entry system having an electronic lock feature An alphanumeric entry system which is provided with an electronic lock-out feature. The keypad entry system of the present invention comprises an alphanumeric keypad having function keys and display, a microprocessor, and an electronically programmable re... | 06/02/1987 |
| 4660034 | Information input machine An input machine for inputting information corresponding to a desired item, comprising a plurality of guide plates arranged substantially parallel to each other and lying substantially on a single plane, a plurality of films on each of which a plurality o... | 04/21/1987 |
| 4649231 | Method for the transmission of characters by means of the code combinations of a telegraph alphabet It is an object of the present invention to provide a teleprinting machine capable of transmitting and writing capital and small letters, where the number of additionally transmitted shift code combinations is minimized in order to reduce the transmission... | 03/10/1987 |
| 4647911 | Calculator with definable keys A programmable calculator is disclosed which has a plurality of keys each having a unique definition as an input key for introduction of instruction statements and constants through associated definition instructions. In the calculator, instruction defina... | 03/03/1987 |
| 4639554 | Dual-tone multiple-frequency-signal generating apparatus A dual-tone multiple-frequency (DTMF)-signal generating apparatus of the present invention is provided with a high-group frequency divider and a low-group frequency divider for dividing a reference frequency signal into high-group frequencies and low-grou... | 01/27/1987 |
| 4632001 | Polyphonic electronic musical instrument performing D/A conversion of tone waveshape data A tone generation circuit can generate digital tone signals in a plurality of channels on a time shared basis and these digital tone signals are supplied to a digital-to-analog converter provided commonly for the respective channels. The digital-to-analog... | 12/30/1986 |
| 4595798 | Telephone number input terminal devices Improved telephone number input terminal devices for memory stored dialing data for automatic dialing have a divided housing (12) with an upper section (13) that is readily attached to and removed from a base section (14) so that a printed circuit board (... | 06/17/1986 |
| 4521870 | Audio/video system having touch responsive function display screen An audio/video editing system presents different menus of editing functions on a display screen and changes the menus as well as performing different editing functions in response to the touching of selected areas of the display screen by an operator. An ... | 06/04/1985 |
| 4307383 | Touch sensitive control panel utilizing pyroelectric material A touch sensitive control panel utilizing pyroelectric material to provide output signals representative of an area touched by an operator includes a plurality of conductors and pads of pyroelectric material selectively in contact with the conductors to p... | 12/22/1981 |
| 4251805 | Circuit arrangement for an input keyboard A keyboard switch matrix has a plurality of column and row wires and switches having only two poles and no interconnecting diodes for selectively connecting one of said columns to one of said rows. Associated with each column and row wire is a flip-flop h... | 02/17/1981 |
| 4179748 | Programmer and method of storing information therein and accessing information therefrom A programmer unit which is connected to the keyboard of a machine is capable of storing, as a program, the sequential occurance of key closures, and of supplying simulated key closures through the keyboard to the machine in the order in which such key clo... | 12/18/1979 |
| 4132871 | Digitally synthesized multi-frequency signal generator A solid state signal generator for producing frequency combinations such as used in multi-tone telephone systems. The output of a crystal oscillator is divided to obtain binary signals proportional to the selected pairs of the seven multi-tone frequencies... | 01/02/1979 |
| 4119957 | Digital display for cooking time and power of electric cooking device A digital display apparatus for indicating a cooking time and power of an electric cooking device by means of common digital indicators, wherein a first group of AND gates is connected between a first shift register for storing a cooking time data and dig... | 10/10/1978 |
| 4101871 | Touch-tone encoder unit for mobile radio transmitter A touch-tone encoder unit is provided for a mobile radio transmitter which is constructed as a single unitary package comprising a keyboard, a first printed circuit board positioned adjacent to the rear face of the keyboard which includes a switching circ... | 07/18/1978 |
| 4092599 | Annunciator communication system An annunciator communications system in which any one of a plurality of identical transmitting-receiving units can communicate to the rest through minimum communication links, such as power transmission lines, piping, building structures, or the like. Eac... | 05/30/1978 |
| 4075621 | Hand held communication aid for the dumb A hand held communication aid for the dumb includes a casing, containing a keyboard, which is easily held in one hand and the keyboard positioned to be operated by the other hand of the user or "speaker". The end of the casing has a visual light emitting ... | 02/21/1978 |
| 4065755 | Touch-Tone encoder unit for mobile radio transmitter A Touch-Tone encoder unit for a mobile radio transmitter, or the like, is provided, which includes a keyboard and an encoder generator connected thereto which generates two distinct tones whenever a particular button on the keyboard is depressed and which... | 12/27/1977 |
| 4056692 | Digital tone generator A stable generator produces a reference square wave signal having a stable given frequency. Logic circuitry is coupled to the generator to provide a plurality of square wave signals each having a different predetermined frequency, each of the predetermine... | 11/01/1977 |
| 4010447 | Signal transmitter using an active thick film substrate A battery powered portable acoustic transmitter comprises a plurality of single-pole, momentary contact switches, a type 555 pulse producing integrated circuit chip, and an electroacoustic transducer and matching tuning coil. An RC timing circuit includes... | 03/01/1977 |
| 3942175 | Multipurpose keyboard system A system for varying the function of a keyboard using a plurality of status keys to select a function. The status keys form a binary which are decoded in a first word decoder forming a single word which are fed to a plurality of binary decoders one each a... | 03/02/1976 |
