Abstract: The heater bag for bakery products comprises a flexible or semi-rigid casing defining a bottom (111), side walls (110), an opening (112), and means (113) for selectively closing the opening (112). At least one semi-flexible heater plate (121, 122) having an electrical heater element (141, 142) incorporated therein is itself inserted in a pocket of natural material comprising cotton, flax, and wool, said pocket constituting a portion of the flexible or semi-rigid casing of the bag. For each heater plate (121, 122), the heating power per cm2 lies in the range 0.13 W to 0.24 W.

Abstract: The heater bag for bakery products comprises a flexible or semi-rigid casing defining a bottom (111), side walls (110), an opening (112), and means (113) for selectively closing the opening (112). At least one semi-flexible heater plate (121, 122) having an electrical heater element (141, 142) incorporated therein is itself inserted in a pocket of natural material comprising cotton, flax, and wool, said pocket constituting a portion of the flexible or semi-rigid casing of the bag. For each heater plate (121, 122), the heating power per cm2 lies in the range 0.13 W to 0.24 W.

Abstract: A system for automatically adapting the mean sound level of a television receiver. The system for automatically adapting the mean sound level of a television receiver comprises an adapting module comprising both a video adapting circuit comprising at least one additional input highpass filter and a fixed-gain video amplifier connected in series and interposed in the video image processing circuits at circuity for providing video image signals, and secondly an audio adapting circuit interposed in the sound path at circuity for taking audio signals to detect the input mean level of sound, to compare said mean level of sound with a pre-established reference mean level, and automatically to adapt the mean level of output sound to maintain it at the pro-established reference mean level.