the preferred embodiments of the instant invention are now described referring to fig1 , 2 a , 2 b and 3 . identical elements in the various figures are identified with the same reference numerals . reference will now be made in detail to embodiment of the present invention . such embodiments are provided by way of explanation of the present invention , which is not intended to be limited thereto . in fact , those of ordinary skill in the art may appreciate upon reading the present specification and viewing the present drawings that various modifications and variations can be made thereto . referring now to fig1 , a block diagram of the invention is shown . a microprocessor 101 , a charge coupled device ( ccd ) image capture array 102 , program memory 103 , data memory 104 , usb connector 105 , display 106 , user controls 107 , light source 108 , optics 109 , data transfer port 110 , near field communications ( nfc ) feature 111 , heating / drying unit 112 and a smart phone 113 are shown . still referring to fig1 , according to a preferred embodiment the user turns the device on from user controls 107 . the microprocessor 101 having a program memory 103 and data memory 104 will turn the light source 108 on once a sample is inserted in the device . a preferred embodiment also has a heating / drying unit 112 at a sample receptacle to dry the saliva sample after inserting the sample on a transparent plate in the device . the microprocessor 101 turns the heating element of the heating / drying unit 112 on upon inserting the sample and off once the sample is dry . according to one preferred embodiment the device includes a thermosensitive element that turns on when the sample receptacle contacts the element upon inserting the sample into the device and turns off when the sample is dry . according to one preferred embodiment the microprocessor 101 turns the heating / drying unit off after a predetermined time period , for example 30 seconds after the sample is inserted into the sample receptacle . the device has an autofocus features , focusing automatically to the saliva sample . preferably the magnification is 100 ×, but any magnification showing the ferning pattern can be used . the user can then take an image of the desired view of the sample by using user controls 107 to activate the ccd 102 to capture the image and convert it on digital values . data may then be saved on an internal or external memory , such as a memory stick . the memory preferably has capacity to at least 365 images . i . e . one image each day of the year . according to one preferred embodiment , the user may select one or more of the saved images for viewing and comparing them on the display 106 . according to one preferred embodiment the display can display at least two images simultaneously . according to one preferred embodiment there are template images saved in the device memory and the display is capable of showing simultaneously one or more template images and one or more images of user &# 39 ; s saved data . according to a preferred embodiment the images may be transferred and saved on a smart phone 113 or a tabloid . the user may then share the pictures for example with her doctor via email or text messages and can easily bring the pictures to her next appointment . according to one preferred embodiment the device has a nfc - feature 111 and the date can be transferred wirelessly . according to a preferred embodiment the user takes a picture of her saliva sample every morning when she wakes up before eating , drinking or smoking . it is not necessary to take any more than one image per day . the most reliable results of ovulation likelihood are received by taking the image at the time of waking up before eating , drinking or smoking . the user can then share the saved data with her doctor . according to one embodiment the device includes software capable of using an algorithm to provide a sampling schedule for the user to provide samples . according to this embodiment the device provides a schedule for sampling around the most probable time of the ovulation . the device may provide an alarm or notification for the user for sampling . the alarm or notification may be a voice , light , or shaking of the device . according to a preferred embodiment the device has heating / drying unit 112 controlled by the microprocessor . the heating element of the unit 112 dries the sample within few seconds whereby the sample can be inspected , displayed and saved immediately . according to one preferred embodiment the user may provide a pre - dried sample . such pre - dried sample may for example be air dried sample . according to a preferred embodiment the user control includes means to insert the date of the sample . via the optics unit the user may view images saved in the memory and choose any desired date , e . g . the first day of each month to be viewed or images of every day of a desired month . now referring to fig2 a , the device is shown in a front perspective view . the figure shows a housing 210 , a display 260 , user controls defined as a date control 272 , on / off button 274 , take a picture button 275 and search button 278 , a receptacle 212 to insert a sample , a transparent slide 216 with an orientation groove 201 to consistently place the sample on , and memory stick ( s ) or other memory device 270 , 271 to save the data . the memory device may for example be a smart phone ( 111 in fig1 ). still referring to fig2 a , the user places a sample on the transparent slide 216 . the transparent slide may be a glass slide . the sample is most preferably a drop of saliva , but it can as well be a drop of cervical fluid . the transparent slide 216 having the sample is now pushed into the sample receptacle 212 ( which has a relief 202 ( shown in fig2 b ) to protect the sample ) of the device . the device is turned on using the on / off - button 274 . in a preferred embodiment turning the device on will turn on the heating / drying unit ( 112 in fig1 ) to dry the sample on the transparent plate ( e . g . glass ) within second ( s ). turning the device on will also turn the light source ( not shown in fig2 a ) on . the light source is preferably a led light and it illuminates the sample . the device has an autofocus feature and the image of the sample ( see fig3 a - c ) is displayed on the display screen always in focus . the user has to set the date from the date control 272 . through the take - a - picture button 275 the user is activating the ccd ( 102 in fig1 ) to capture the picture and transform it into digital format . the microprocessor saves the pictures with the date information . the user may download the images taken on different days through the optics unit ( 109 in fig1 ), print the saved images , or transfer them to another suitable device , e . g . a smart phone to email the images for example to her doctor . the device is preferably handheld and can be run with batteries . the device may also be charged ( receptacle in fig2 b ). now referring to fig2 b , the device is shown in a side perspective expanded view . the figure shows a transparent slide 216 with recess or a groove 201 for consistency of orientation of the samples , a receptacle 212 ( see fig2 a and fig2 b ) to inset a sample and a relief 202 to prevent damaging of the samples . the figure shows receptacles 203 , 204 are temperature information to the user . this embodiment allows the user to record her body temperature and save the data into the memory of the device . according to a preferred embodiment the user measures her temperature with a thermometer ( s ) attached to inlet 203 or 204 in the morning . the user can save the data on the device memory with the date and time information . the user then provides a saliva sample and takes pictures as described above . this data can be saved along with the temperature data . in fig2 b 205 is receptacle for battery charging . the stored images and the temperature data and associated algorithmic data ( see below ) may be transferred through a number of generally accepted methodologies including a smart phone ( 113 in fig1 ). a direct data transfer may occur through a data transfer port ( 110 in fig1 ). in such a scenario , the data transfer port receives a cable which enables the user to transfer selected data to a secondary device much like the transference of images and data from a digital camera to a computer . alternatively , the data transfer port may accept a secure digital ( sd ) card that enables an arbitrary amount of storage depending on the card selected . the sd card can then be readily transferred to a secondary device and the data saved to that card can then be uploaded to the secondary device . even yet , in embodiments where no such data transfer port exists , the device may use near field communications ( nfc ) ( 111 in fig1 ) to transfer data between devices . this method enables the wireless transfer of data via radio wave communication . in a preferred embodiment the user may manipulate the saved data in a way that the results may be compared to pre - determined norms derived from many other user samples or to template data saved in the memory of the device . furthermore , the microprocessor may be programmed to use one or more algorithms to provide prediction of likely ovulation time and to provide a sampling schedule for the user . generally , the ferning pattern ( see fig3 ) in the saliva sample is created by the crystallization of sodium chloride in the presence of increased hormone levels such as estrogen . estrogen and the associated estrogen levels are key factors is determining potential fertility . the increase in estrogen , in turn , results in an increase in the crystallization pattern , which is detected by the ccd and stored in the computer readable memory within the device . the microprocessor analyzes the stored images for detecting crystallization lines via optical analysis within a given sample based on the known parameters ( i . e . size , resolution , etc .) of the image captured by the ccd . the microprocessor can then arrive at a value for the degree of crystallization of a given sample to make a determination whether the level of crystallization meets or exceeds an accepted or arbitrary level determined to signify peak ovulation . thus , this numerical figure can then be compared either manually by the tester or automatically by the device to signify whether or not the tester has reached peak ovulation . according to another embodiment the device may also include a unit to measure body base temperature or other parameters and the software may use an algorithm to utilize that data in addition to the data captured from the body fluid sample . according to a preferred embodiment the device is handheld . the measures of the housing may be about 2 . 5 ″ times 3 ″ times 0 . 5 ″ ( 6 . 35 × 7 . 62 × 1 . 27 cm ). a hand held device is preferable when the device is meant for predicting ovulation of human females . the device may be more robust in its size when it is meant to be used for dogs and livestock breeders . it is understood by a skilled artisan that several changes and alterations may be made to the device and method without diverting from the spirit of this invention .
this disclosure provides a stand alone electronic device to predict a likely time of ovulation based on crystal formation in a mucous body fluid sample . optionally body temperature data may also be measured and saved on the device memory . the device allows user to save the data , download images , and compare results from different times . the disclosure further provides a device that includes software using an algorithm to calculate frequency of crystals on the sample and allowing comparison of the frequencies . the algorithm may use the temperature data also . the device includes an option to transfer data onto a smart phone or similar device . the device is suitable for predicting ovulation of any mammal , including human beings , dogs and livestock including horses .