TH487A - Phone usage recorder - Google Patents

Abstract

Phone usage recorder According to this invention There are a total of 6 subunits that make up a complete telephone logger. Can record outgoing calls And the time of the call on a regular calculator paper By typing immediately after hanging up the phone

Claims (2)

1. A method for recording telephone usage used with landline or public telephones consists of the following steps: a. Check the line status by the line status monitor. To check the line status, whether the handset is hanging or picking up the handset. Or is there a recipient of the call? By sending the verifiable information to the microcontroller B. converting and decoding the phone signal by converting and decoding unit to telephone signals The numeric signal code is a 4-bit BCD and sends the signal (STD) to the microcontroller. To take that number to collect In the temporary memory c. Perform a display of numbers and information on the LCD display. Phone number Dialing date, time spent calling d. After the call is answered Or the user presses the last number 5 seconds, the microcontroller will start a timer and display the time on the LCD screen. E. Print the phone number, date and time used to call. Using the printer and printing immediately after hanging up the phone 2. Telephone usage recorder - Power supply that supplies electricity to circuits - Microcontroller that controls the operation of units - Dual line status monitoring unit Is connected to the microcontroller serves to tell the status of the line that the ear is hanging or the recipient of the telephone line occurs - the unit converts and decodes the signal into a 4-bit BCD number, which is connected to the microcontroller. It converts the phone signal to a number so that the microcontroller can be stored in memory. - The time and date database connected to the microcontroller acts as a clock telling the time and date to Let the microcontroller be used to print the date and time. - The display unit is connected to the microcontroller. Serves to display the numeric messages sent from the microcontroller - the printer display unit. Connect with microcontroller Serves to print messages sent from the Crocontroller