R10

General introduction about the PC remote control

According to the infrared encode chip to distinguish, the remote controller can be roughly divided into the following three categories:

1),MaskROM(normal) remote controller:
using mask ROM technology, mass production, not less than 10k for one time, the standard fixed format encode chip, such as philips SAA3010(RC5 format), NEC uPD6121/622(nec format).
By choosing different coding chip, design different layout to define each key value.
Application: low cost such as the TV remote control and the AV remote control.

2),OTP(Code-based) remote controller:
Using OTP (one time programing) or Flash MCU to design the encoding chip, modify different program,firmware to simulate arbitrary standards known coding format, such as RC5 or NEC protocal.
also can produce new unknown coding protocol if necessory.
Application: the production of various kinds of known function remote control alternatives such as projector remote control, multi-function remote control such as hotel VOD/STB combo controller, multi user remote controller, the remote computer mouse simulation, code confidential remote control.
The cost is relatively high, suitable for every production of 100 to 2000 orders.
Code is stored for each remote control button only needs 4 bytes, support for EEPROM such as 24C02.
The infrared ray code emitted very accurate and stable

3),Learning remote controller:
Using Maskrom MCU to design to store encoded signal via the waveform capture, this process is called learning.Usually by the end user to complete, store a key need hundreds of bytes memory space.
The data maybe error and not standard, does not support code hopping, a key 2 or more codes.

Our company do mainly the OTP(Code-based) remote controller.

We can provide infrared receiver (infrared sensor) for the pc, usually have the following forms:

1),PS/2 receiver: included PS/2 keyboard and PS/2 mouse,standard ps/2 device, no drivers.

2),RS232 reciever: RS232 level,serial port, connected the computer com (rs232) port directly,Need drivers or provide API (application program interface)

3),USB receiver: USB keyboard and mouse standard device, no drivers when it been used as a the HID device.

4),UART receiver: TTL level, compatible with RS232 standard, need drivers or provide API (application program interface).

5),Specially designed pc or pc-like equipment, motherboards provide onboard infrared sensors, so we need not install the infrared receiver.