Abstract: A compressed digital multi-channel video communications system having at least one auxiliary channel. The other channels are assigned to respective program sources. These channels are prioritized. The auxiliary channel works with the assigned channel which has the highest priority and which also requires additional bit capacity; the two channels carry bit streams whose combined rate exceeds the highest bit rate that can be carried by a regularly assigned channel. As the needs of the assigned channels continuously change, the auxiliary channel works with different channels.

Abstract: An improved action game. Each player can see the other player's piece only when it is in the play area; he is given an indication of the position of his own piece at all times. A player scores a point if his piece catches the other player's piece in the play area. The pieces automatically change shape depending on whether a player is the first or second to enter the play area, and automatic scoring counters are also provided. Each player piece is moved under manual control, a variable number of positions by a ratchet gear drive. The players alternate in moving their pieces.