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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 7358964 | Electromagnetic inductive system with multi-induction loop layout and battery less pointer device and its method for locating the coordinate A multi-induction loop layout of an electromagnetic inductive system is disclosed. The multi-induction loop layout of the invention comprises a plurality of inductive loops, one terminal of each inductive loop connecting to a loop switch, and the other terminal conn... | 04/15/2008 |
| 7225979 | Methods and systems for object identification and interaction A method of facilitating an interaction between a user and a product item, the product item having an identity and the method including a number of steps. The first step involves providing the user with an interface surface associated with the product item and conta... | 06/05/2007 |
| 7218314 | Coordinate input device A coordinate input device includes a coordinate input element. The coordinate input element includes a transparent coordinate detector and a controller having a control circuit which drives and controls the coordinate detector and which corrects electrostatic capaci... | 05/15/2007 |
| 7202859 | Capacitive sensing pattern A capacitive sensor is disclosed. The capacitive sensor comprises a plurality of spaced-apart X traces disposed along an X axis and a plurality of spaced-apart Y traces disposed along a Y axis with each of the Y traces forming a single crossing with each of the X tr... | 04/10/2007 |
| 7178718 | Methods and systems for object identification and interaction A method of facilitating an interaction between a user and a product item, the product item having an identity and the method including a number of steps. The first step involves providing the user with an interface surface associated with the product item and conta... | 02/20/2007 |
| 7176907 | Device and method for pointer system of digitizer tablet The invention, an improved device and method for the pointer system of a digitizer tablet, is to repetitiously emit signals sequentially from a specific set of inductive loop when the position pointed by the wireless pointer device is located within a range formed b... | 02/13/2007 |
| 7156289 | Methods and systems for object identification and interaction A method of facilitating an interaction between a user and a product item, the product item having an identity and the method including a number of steps. The first step involves providing the user with an interface surface associated with the product item and conta... | 01/02/2007 |
| 6731271 | Coordinate input device and its control method, and computer readable memory A device has a light-receiving element for receiving light coming from a pointing tool, and a plurality of linear sensors for sensing a beam spot. A controller discriminates if a first signal output from the light-receiving element and a second signal output from th... | 05/04/2004 |
| 6222522 | Baton and X, Y, Z, position sensor A position sensor is used in conjunction with one or more batons, each baton having a transmitter that transmits a distinct radio frequency signal at a position in space. The position sensor determines the current position of each baton transmitter in ter... | 04/24/2001 |
| 6184873 | Pen positioning system A pen positioning system is provided, in which a pen, having multiple output elements, is adapted to accurately determine the location of the pointing tip of the pen, in relation to an electronic tablet. The output elements, preferably ultrasonic transmit... | 02/06/2001 |
| 6124848 | Method and apparatus for reducing flat panel display horizontal scan signal interference in the electrostatic pen operated digitizer A flat panel display is coupled with an electrostatic stylus driven digitizing panel to produce a display and digitizer system having an interference control feature. The interference control feature first determines the operating frequency of the flat pa... | 09/26/2000 |
| 5952999 | Employing gray codes for pen detection A graphic tablet includes a number of parallel electrodes whereto a series of patterns is presented in order to determine the position of a pen relative to the electrodes. As a result of such presentation, a series of code elements is formed on an electro... | 09/14/1999 |
| 5945980 | Touchpad with active plane for pen detection A touchpad which simulates an active stylus by providing pulses to the entire active plane (making it an active plane), instead of the stylus. This allows a simple, non-active stylus to compress the touchpad to bring the X, Y traces closer to the active p... | 08/31/1999 |
| 5883338 | Telementry by digitizer stylus The invention concerns a stylus for use with a digitizing tablet, such as that associated with the display of a portable computer. The stylus contains memory which stores data such as operating state (i.e., states of user-controlled buttons, state of char... | 03/16/1999 |
| 5629500 | Position pointing device, system and method employing AC field Detailed information about plural factors determining a color and the coordinate value of a pointed position are determined from a position pointing device. The detailed information about the plural colors is by factors such as detailed gradation informat... | 05/13/1997 |
| 5408055 | Cordless transducer phase reference and data communication apparatus and method for digitizers A device for indicating the phase of the a full-frequency alternating current (AC) magnetic field signal transmitting from the pointing device of a cordless digitizer and for determining if the phase of a half-frequency alternating current (AC) magnetic f... | 04/18/1995 |
| 5373118 | Half normal frequency regime phase encoding in cordless digitizers A device for imparting a signal phase status of an alternating current (AC) magnetic field signal transmitting from a cursor in a cordless digitizer. The device includes an apparatus for causing the cursor to temporarily emit a signal having a frequency w... | 12/13/1994 |
| 5369227 | Stylus switch status determination in a digitizer tablet having a cordless stylus A digitizer tablet with a cordless transducer which is capable of providing to the tablet information relating not only to the position of the pointing device but also with respect to the status of any button switches on the transducer. This is obtained b... | 11/29/1994 |
| 5120907 | Device for determining position coordinates of points on a surface A device for determining position coordinates of points on a surface, has a tablet containing plural number of equally spaced driver windings and plural number of equally spaced sense windings. Each driver winding has a pair of parallel conductors laid in... | 06/09/1992 |
| 5045645 | Digitizer system with passive pointer A driving grid is driven by an ac signal comprising a carrier frequency modulated by a lower frequency. An untethered, batteryless pointer includes a pick-up coil in a first tuned circuit tuned to the carrier frequency, connected by diodes to a driving co... | 09/03/1991 |
| 4814552 | Ultrasound position input device This invention is an input device, or stylus, for entering hand drawn forms into a computer comprising a writing instrument, a pressure switch for determining whether the instrument is in contact with the writing surface, an acoustic transmitter for trian... | 03/21/1989 |
| 4748295 | Four button cursor and method for digitizing tablet A cordless four button cursor unit for accurately digitizing points along a digitizing tablet surface has an insulative housing including four buttons, each shaped as a quadrant of a circle and arranged about a hub. The hub acts as a stationary support fr... | 05/31/1988 |
| 4697050 | Device for digitalizing graphical data The invention relates to a device for simultaneously effecting on the one hand, the plotting or erasing of graphical data on a material medium and, on the other hand, the recording or erasing of corresponding data in a computer memory. Write and/or erase ... | 09/29/1987 |
| 4672154 | Low power, high resolution digitizing system with cordless pen/mouse A cordless pen emits a directional electric field from the tip of a conductive pen cartridge. The pen tip is capacitively coupled to embedded major X and major Y conductors in a digitizer tablet, which are scanned to determine which three X conductors and... | 06/09/1987 |
