REMOTE TELEPHONE VOICE

REMOTE TELEPHONE VOICE

INTRODUCTION
Hi, some time ago I had occasion to appreciate the potential of a famous chip produced by the U.S. FDI in technology DAST (Direct Analog Storage Technology). This is a really amazing chip: The ISD1016, suitable for recording and playback of voice messages, in which we find everything you need for analog to digital conversion, as well as a microphone preamplifier with AGC, a memory bank EEPROM for permanent storage of the messages, with related circuitry for the addressing of the same, a digital to analog converter followed by an amplifier of BF for listening directly in the speaker, in addition to the filters that demarcate the passband. [continues Read more →]

We investigate on TV remotes saba

RX and TX-365 Remote SABA

Introduction

Hi, I would describe this experience when I conducted last summer, going over with you, all the stages that I have then led to the creation of a decoder for the TV remote control signals. The original purpose of my task was to analyze the signals from the remote of my TV, to investigate the code and the type of modulation. As you see anything special, in fact, this work aims mainly to be a basic study for possible future developments and expansions. [read more →]