Mitsubishi Electric Corporation

Hochiki Corporation

Hiroshi Homma

Yukio Yamauchi

Shu Murayama

Kunio Shibata

A data storage unit () stores an image frame in which an image frame which consists of coded data having a data loss or error received by a receiving unit () and complementary coded data which is received by receiving unit at a later time are rearranged into normal sequence. A redecoding unit () decodes the image frame stored in the data storage unit () with reference to one or more already-decoded image frames required for the decoding, and stores the decoded image frame in a frame additionally-storage unit (). A decoding unit () decodes an image frame with reference to an image frame stored in either a frame storage unit () or the frame additionally-storage unitaccording to a command from a control unit ().

Moving image decoding apparatus and moving image coding apparatus

A smoke detector includes a light-emitting circuit, a light-receiving circuit, a smoke detecting space between the light-emitting and receiving circuits, and an amplifier circuit connected to the light-receiving circuit amplifying the output of the light-receiving circuit at an output terminal. An output comparison circuit is provided having an input terminal connected to the output terminal of the amplifier circuit and a voltage memory circuit is connected to another input terminal of the output comparison circuit. A detector circuit has one input terminal connected to the memory circuit and another input terminal connected to the output terminal of the comparison circuit, and a fire alarm circuit is connected to the detector circuit for operating an alarm when smoke from a fire fills such space between the light-emitting and receiving circuits, whereby contamination due to time and environmental factors has a minimal adverse effect on the detection of smoke in such space.

Growing community of inventors

Tokyo, Japan

Hiroshi Homma