If at least two of the three groups are the same, the data is considered valid and is transferred to output pins 1 through 4. The data that appears at these pins is exactly the same as the data applied to the transmitter data pins 1 through 4. All pins can be down, all up or any combination. You can use these outputs to drive individual circuits or devices, or since there are four pins you can send four bits of information in binary format to represent a decimal count of 0 to 15. The HT694 has momentary data outputs.
Data remains on the output pins only as long as data is being received.
If you need latched data, you can use a HT-684L which has the same pin connections and provides latched data outputs that retain the last data sent until new valid data is received. These devices do not provide error correction. They just accept valid data and reject corrupted data. This means that a control signal that is corrupted will not be received and must be sent again. This is usually not a problem when push buttons are used as inputs since a large number of repetitive data bytes will be sent before the button is released.