Abstract:
A combination cellular phone and personal defense system for providing both a means of communication along with a means of self-defense in one unit. Provided is a detachably connectable protective case for a cellular phone, which when the cell phone is connected to the protective case, the combination cell phone and protective case is converted into a personal defense system with cell phone maintaining substantially all of its functionality. One embodiment relates to smart cellular phones and more particularly pertains to a new combination protective case for cellular phone which, when detachably connected to a cell provide, includes a personal defense system and phone system in one unit. In one embodiment the detachably connectable protective case with integrated self defense system which can be interchangeable with other cell phones of the same or similar designs. The circuit can be included in case geometries that accommodate phones from any manufacturer, including but not limited to smart phones such as iPhones.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This is a continuation of U.S. patent application Ser. No. 13/775,712, filed Feb. 25, 2013 which is non-provisional of U.S. Provisional Patent Application Ser. No. 61/602,669, filed 24 Feb. 2012, each of which are incorporated herein by reference and to/of which priority is hereby claimed. 
    
    
     STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT 
     Not applicable 
     REFERENCE TO A “MICROFICHE APPENDIX” 
     Not applicable 
     BACKGROUND 
     One embodiment relates to smart cellular phones and more particularly pertains to a new combination protective case for cellular phone which, when detachably connected to a cell provided, includes a personal defense system and phone system in one unit. 
     In one embodiment the detachably connectable protective case with integrated self defense system can be interchangeable with other cell phones of the same or similar designs. The circuit can be included in case geometries that accommodate phones from any manufacturer, including but not limited to smart phones such as iPhones. 
     Known prior art includes U.S. Pat. No. 5,988,450 to Cassarino; U.S. Pat. No. 4,624,389 to Ang; U.S. Pat. No. 4,446,990 to Stevenson et al.; U.S. Pat. No. 5,422,656 to Allard et al.; U.S. Pat. No. 5,446,789 to Loy et al.; U.S. Pat. No. Des. 350,744 to Hino; and U.S. Pat. No. Des. 343,172 to Watanabe which are all incorporated by reference herein. 
     Other known prior art includes U.S. Pat. No. 4,186,851; U.S. Pat. No. 4,982,645; U.S. Pat. No. 5,429,301; U.S. Pat. No. 5,476,192; and U.S. Pat. No. 5,531,359. 
     While certain novel features of this invention shown and described below are pointed out in the annexed claims, the invention is not intended to be limited to the details specified, since a person of ordinary skill in the relevant art will understand that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation may be made without departing in any way from the spirit of the present invention. No feature of the invention is critical or essential unless it is expressly stated as being “critical” or “essential.” 
     SUMMARY 
     In view of the foregoing disadvantages inherent in the known types of cellular phones and personal defense devices in the prior art, one embodiment provides a new combination detachably connectable protective case for a cellular phone, which case when connected to the housing of a cell phone, converts the cellular phone into a personal defense system while allowing the cell phone to maintain, substantially, all of its functionality. 
     In one embodiment the cell phone includes a housing, display, keypad (which can be a touch screen and incorporated into the display), antenna, and power supply. In one embodiment the cell phone&#39;s power supply is a rechargeable battery. 
     In one embodiment is provided a detachably connectable protective case having an electrical personal defense system, the protective case being detachably connectable to the housing of a cell phone. 
     In one embodiment a personal defense system is incorporated into the protective case. 
     In one embodiment the personal defense system includes a shocking method and apparatus. 
     In one embodiment is provided anew combination cellular phone and protective case incorporating a personal defense system for providing users both a means of communication and a means of self-defense in a single combined hand held unit. 
     In one embodiment is provided a combination cellular phone and detachably connectable protective case, which case incorporates a personal defense system, and which case allows substantially all functionality of the cell phone when the case is attached to the housing of a cell phone. 
     In various embodiments the cell phone can be generally rectangular in shape having a phone length, width, and depth. In one embodiment the protective case can be rectangular in shape having a case length, width and depth. In one embodiment the case length and width dimensions are within 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, or 15 percent of the respective cell phone length and width dimensions. In various embodiments the respective dimensions fall within a range of any two of the above specified percentages. 
     In one embodiment the ratio of the case&#39;s depth dimension to the cell phone&#39;s depth dimension is less than 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.2, 2.4, 2.5, 2.6, 2.8, and 3. In various embodiments the ratio falls within a range of any two of the above specified ratios. 
     In one embodiment a battery power the personal defense system can be operably connected to the cell phone, and in another embodiment can be used to recharge the cell phone&#39;s rechargeable battery (such as at the user&#39;s option). 
     In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting. 
     These together with other objects of the invention, along with the various features of novelty which characterize the invention, are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and the specific objects attained by its uses, reference should be made to the accompanying drawings and descriptive matter in which there are illustrated preferred embodiments of the invention. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The invention will be better understood and objects other than those set forth above will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawings wherein: 
         FIG. 1  is a perspective view of the one embodiment. 
         FIG. 2  is an exploded perspective view of the embodiment shown in  FIG. 1 . 
         FIG. 3  is a side view of the embodiment shown in  FIG. 1 . 
         FIG. 4  is a schematic diagram of the operations of one embodiment using an inductor based high voltage generator circuit. 
         FIG. 5  is a diagram of an inductor based high voltage generator circuit for use in the operations of  FIG. 4 . 
         FIG. 6  is a schematic diagram of the operations of one embodiment using an LOPT based high voltage generator circuit. 
         FIG. 7  is a diagram of a LOPT based high voltage generator circuit for use in the operations of  FIG. 6 . 
         FIG. 8  is a schematic diagram of the operations of one embodiment of a piezoelectric based high voltage generator circuit. 
         FIG. 9  is a diagram of the a piezoelectric-based high voltage generator circuit for use in the operations of  FIG. 8 . 
     
    
    
     DESCRIPTION 
     Detailed descriptions of one or more preferred embodiments are provided herein. It is to be understood, however, that the present invention may be embodied in various forms. Therefore, specific details disclosed herein are not to be interpreted as limiting, but rather as a basis for the claims and as a representative basis for teaching one skilled in the art to employ the present invention in any appropriate system, structure or manner. 
     One embodiment relates to smart cellular phones and more particularly pertains to a new combination protective case  300  for cellular phone  100  which includes a personal defense system  400  for providing both phone  100  and self-defense system  400  in one unit, which self defense system  400  is included in a protective casing  300  for the cell phone  1100  and interchangeable with other cell phones  100 ′, 100 ″, etc. of the same or similar designs. Protective casing  300  can be modified to various mobile phones, and smart phones, such as the Apple iPhone, Motorola Droid, T-Mobile LG G2X, HTC EVO 3D, HTC Thunderbolt, Ericsson Xperia Play, Google Nexus, HP Pre, and Dell Venue Pro. Protective case  300  would be modified to fit the particular geometry and size of the cell phone  100  on which it is to be detachably connected. 
       FIG. 1  is a perspective view of the one embodiment of the combined protective case  300  (with personal defense system  400 ) detachably connected to a cell phone  100 .  FIG. 2  is an exploded perspective view of the embodiment shown in  FIG. 1 .  FIG. 3  is a side view of the embodiment shown in  FIG. 1 . 
     The combination cellular phone and protective case/personal defense system  10  comprises a cellular telephone  100  having a housing  110 . Inside housing  110  are the cellular phone electronics  120  including a CPU, a transmitter, and a receiver. Housing  110  further includes a visual display  130  (which can include a touch-type keyboard  140 ), an antenna  150 , and battery  160 , all electrically connected to the cellular phone electronics  120 . 
     First rechargeable battery  160  can be disposed in housing  110  and electrically connected to the cellular phone electronics  120 . One side wall  111  of the housing  110  can be a connection/recharge port  190  extending inwardly thereof. Recharge port can be electrically connected to rechargeable battery  160  to permit electrically connecting battery  160  to an external power supply for recharging of battery  160 . 
     Cell phone housing  110  can have walls  111 ,  112 , 113 , 114 ,  115 , and  116 . Cell phone housing  110  can have dimensions of length L1, width W1, and Depth D1. 
     Protective case  300  can have walls  311 ,  312 , 313 , 314 , and  315 , with interior  320 . Protective case can have dimensions of length L2, width W2, and Depth D2. 
     In various embodiments cell phone housing  110  can be generally rectangular in shape having a length L1, width W1, and depth D1. In one embodiment protective case  300  can be generally rectangular in shape having a case length L2, width W2, and depth D2. In one embodiment the case  300  length L2 and width W2 dimensions are within 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, or 15 percent of the respective cell phone housing&#39;s  110  length L1 and width W1 dimensions. In various embodiments the respective dimensions fall within a range of any two of the above specified percentages. 
     In one embodiment the ratio of the case&#39;s  300  depth D2 dimension to the cell phone housing&#39;s  110  depth D1 (D2/D1) dimension is less than 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.2, 2.4, 2.5, 2.6, 2.8, and 3. In various embodiments the ratio falls within a range of any two of the above specified ratios. 
     A personal defense system  400  is incorporated into the protective case  300  which comprises shocking system  410 , having a shocking circuit  500 , a pair of shocking prongs  420  electrically connected to shocking circuit  500 , with shocking circuit powered by power source  440  such as a battery, which is an independent power source compared to battery  160  of cell phone  100 . Personal defense system can be mounted in the interior  320  of protective case  330 , and shocking prongs  420  can extend outwardly from protective case  300  as shown in  FIGS. 1-3 . 
     In an alternative embodiment shocking prongs  420  can extend outwardly from the opposing side (i.e., wall  312  or upper portion) than the side shown in  FIGS. 1-3  (wall  312  or lower portion). In another alternative embodiment, shocking prongs  420  can be provided for both wall  312  and wall  314 . 
     In one embodiment personal defense system  400  can include activation switch  430  electrically connected to shocking circuit  500  for selectively activating shocking circuit  500  to emit from shocking prongs  420  a defensive electric shock. 
     In one embodiment shocking system  410  can include a safety switch  450  having safety and non-safety modes, and is electrically connected to activation switch  430  to permit selective activation of activation switch  430  only when safety switch is in a non-safety mode. In use, activation of safety switch  450  permits activation of activation switch  430  to power shocking system  410  only while safety switch  450  is in a non-safety mode thus providing a safety feature preventing accidental shocking of a user when using cellular phone  100  to communicate. 
     Shocking system  410  can be powered by power source  440  (which can be a rechargeable battery) disposed in the interior  320  of protective case  300  and electrically connected to shocking circuit  500 . Preferably, protective case  300  includes a recharge port  350 . 
     In use, the present invention affords the user of a luxury of a user having the option of incorporating a personal defense system into a conventionally available cellular phone. 
     Battery  440  can provide power to shocking circuit  500 . Shocking circuit  500  can be in various forms which are described below in relation to  FIGS. 4-9 . 
       FIGS. 4-9  show various embodiments of shocking circuit  500 ,  500 ′, and  500 ″ which can be generally categorized as: (a) BEMF through capacitor/inductor to voltage multiplier; (b) LOPT or Trigger Transformer Step-up to voltage multiplier; and (c) Piezoelectric HV production+Low voltage current production. 
     The following is a list of acronyms which are used:
         (1) BEMF: Back E.M.F. (electromotive force) or also called CEMF (Counter Electromotive Force)   (2) LOPT: Line Output Transformer   (3) IC: Integrated Circuit   (4) LiPo: Lithium Polymer   (5) Li-ion: Lithium Ion       

       FIG. 4  is a schematic diagram of the operations of one embodiment of a personal defense system  400  incorporating a shocking circuit  500  using an inductor based high voltage generator circuit.  FIG. 5  is a diagram of an inductor based high voltage generator circuit  500  for use in the operations personal defense system  400 . Shocking circuit  500  works by using an integrated circuit, at a set frequency, to operate a transistor controlling a capacitor&#39;s discharge through an inductor. After the capacitor discharges through the inductor, the magnetic field in the inductor breaks down and induces a current in the opposite direction of application. This secondary current is of higher voltage than the original current. The secondary current is carried to the voltage multiplier which steps up the voltage even higher to 50,000 volts. The voltage multiplier contains a limiting resistor which limits the current that is passed to the animal/human target. The capacitor becomes charged and is ready to discharge again. 
       FIG. 5  is a diagram of shocking circuit  500  which works by using an IC to generate the necessary oscillation for Q 1  to open and close at a set frequency. R 1 , R 2 , and C 2  control the frequency of oscillation that LM555CM generates. Battery  1  is a 9 volt LiPo or Li-ion battery used to power the stun gun circuit. As Q 1  opens and closes, the charge is dissipated through L1. L1 is the primary inductor and as the charge being applied quickly rises and then falls, the magnetic field on L1 produces a strong BEMF. The BEMF is blocked by D1 and is allowed to pass onto the voltage multiplier. In this example, the voltage multiplier is made of 10 stages. The number of stages could vary depending on the final circuit requirements. The high voltage produced by the voltage multiplier is current limited by R 3  and sent to the spark gap and connected electrodes to the spark gap. 
       FIG. 6  is a schematic diagram of the operations of one embodiment of a personal defense system  400 ′ incorporating a shocking circuit  500 ′ using an LOPT based high voltage generator circuit.  FIG. 7  is a diagram of a LOPT based high voltage generator circuit  500 ′ for use in the operations of personal defense system  400 ′. Shocking circuit  500 ′ works by using a transistor based oscillator with secondary feedback from a Line Output Transformer [LOPT] or Trigger Transformer. As the inductance of the circuit changes, so does the frequency of oscillation in the transistor based oscillator. Those changes are accounted for with a coupled capacitor and resistor network which control final output frequency to a voltage multiplier. The voltage multiplier steps up the primary voltage to 50,000 volts and this goes through a limiting resistor which limits the current that is passed to the animal-human target. 
       FIG. 7  is a diagram of shocking circuit  500 ′ which works by the Secondary Coil current draw pushing resonance to Q 1 , which drives the primary coil. Initially the Feedback Coil in energized biasing Q 1  and allowing current to flow through the Primary Coil. The magnetic coupling between the Primary Coil and the Secondary Coil effectively shunts the Feedback Coil from allowing current to pass by changing the Feedback Coil&#39;s inductance. Since the current can no longer flow, Q 1  switches off. The cycle repeats once the magnetic field of T 2  drops low enough to allow current to pass through the Feedback Coil again. Battery  1  is a 9 volt LiPo or Li-ion battery used to power the stun gun circuit. Secondarily, R 3  and C 1  modify the standing frequency of the circuit to the voltage multiplier. The voltage multiplier in this case is made of six (6) stages, but this could change depending on final circuit requirements. Finally, R 4  limits the current to the spark gap and to the animal-human target. 
       FIG. 8  is a schematic diagram of the operations of one embodiment of a personal defense system  400 ″ incorporating a shocking circuit  500 ″ using a piezoelectric based high voltage generator circuit.  FIG. 9  is a diagram of the a piezoelectric based high voltage generator circuit  500 ″ for use in the operations of personal defense system  400 ″. Shocking circuit  500 ″ works by using an IC based oscillator to drive both a linear actuator and a transistor driven step-up transformer. The linear actuator compresses a piezoelectric crystal to generate a high voltage (40,000-50,000 volts), low amperage signal. The step-up transformer generates a lower voltage (400-2,000 volts), higher amperage signal. Both the piezoelectric generator and the transistor driven step-up transformer send their signals to limiting resistors where each signal is combined and protected. When the intended animal-human target receives a shock, the limiting resistors limit the current that is passed to the animal-human target, but contains the necessary voltage to penetrate clothing while also containing the necessary amperage to disable the target. 
     Shocking Circuit  500 ″&#39;s High Voltage Diode Bridge must be able to sustain (2,000-4,000 volts) approx. voltage spikes from XT, the piezoelectric crystal being squeezed by Linear Actuator [LA 1 ]. R 1 , R 2 , and C 2  are chosen to control LM555CM&#39;s oscillation frequency. Battery  1  is a 9 volt LiPo or Li-ion battery used to power the stun gun circuit. C 1  is chosen to help facilitate a quick discharge to T 1  through Q 1 , an NPN transistor. The oscillation frequency of LM555CM is in tune with the set oscillation frequency of LA 1 . R 3  and R 4  are chosen to reduce the voltage spike on the High Voltage Diode Bridge and to regulate current to the intended animal/human target. 
     As to a further discussion of the manner of usage and operation of the present invention, the same should be apparent from the above description. Accordingly, no further discussion relating to the manner of usage and operation will be provided. 
     The following is a list of reference numerals: 
     
       
         
               
             
               
               
             
               
               
             
           
               
                   
               
               
                 LIST FOR REFERENCE NUMERALS 
               
             
          
           
               
                 (Part No.) 
                 (Description) 
               
               
                   
               
             
          
           
               
                 10 
                 combination cellular phone and personal defense system 
               
               
                 100 
                 cellular telephone 
               
               
                 110 
                 housing 
               
               
                 111 
                 wall 
               
               
                 112 
                 wall 
               
               
                 113 
                 wall 
               
               
                 114 
                 wall 
               
               
                 120 
                 cellular phone electronics 
               
               
                 130 
                 visual display 
               
               
                 140 
                 keypad 
               
               
                 150 
                 antenna 
               
               
                 160 
                 rechargeable battery 
               
               
                 170 
                 recharge port 
               
               
                 300 
                 protective case 
               
               
                 310 
                 housing 
               
               
                 311 
                 wall 
               
               
                 312 
                 wall 
               
               
                 313 
                 wall 
               
               
                 314 
                 wall 
               
               
                 316 
                 wall 
               
               
                 320 
                 interior 
               
               
                 350 
                 recharge port 
               
               
                 400 
                 personal defense system 
               
               
                 410 
                 shocking system 
               
               
                 420 
                 pair of prongs 
               
               
                 430 
                 activation switch 
               
               
                 440 
                 power source 
               
               
                 450 
                 safety switch 
               
               
                 500 
                 shocking circuit 
               
               
                   
               
             
          
         
       
     
     All measurements disclosed herein are at standard temperature and pressure, at sea level on Earth, unless indicated otherwise. All materials used or intended to be used in a human being are biocompatible, unless indicated otherwise. 
     It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above. Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention set forth in the appended claims. The foregoing embodiments are presented by way of example only; the scope of the present invention is to be limited only by the following claims: