diff --git a/src/conv_acc.c b/src/conv_acc.c
index 308cfe0..a3e3f16 100644
--- a/src/conv_acc.c
+++ b/src/conv_acc.c
@@ -1,5 +1,5 @@
 /*
- * Viterbi decoder
+ * Accelerated Viterbi decoder implementation
  *
  * Copyright (C) 2013, 2014 Thomas Tsou <tom@tsou.cc>
  *
diff --git a/src/conv_acc_generic.c b/src/conv_acc_generic.c
index 6042668..a4787e3 100644
--- a/src/conv_acc_generic.c
+++ b/src/conv_acc_generic.c
@@ -1,5 +1,6 @@
 /*
- * Viterbi decoder
+ * Accelerated Viterbi decoder implementation
+ * for generic architectures without SSE support
  *
  * Copyright (C) 2013, 2014 Thomas Tsou <tom@tsou.cc>
  *
diff --git a/src/conv_acc_sse.c b/src/conv_acc_sse.c
index 9cbcc2f..bcc9d48 100644
--- a/src/conv_acc_sse.c
+++ b/src/conv_acc_sse.c
@@ -1,5 +1,6 @@
 /*
- * Intel SSE Viterbi decoder
+ * Accelerated Viterbi decoder implementation
+ * for architectures with only SSE3 available
  *
  * Copyright (C) 2013, 2014 Thomas Tsou <tom@tsou.cc>
  *
diff --git a/src/conv_acc_sse_avx.c b/src/conv_acc_sse_avx.c
index 5d9a82b..2ad353a 100644
--- a/src/conv_acc_sse_avx.c
+++ b/src/conv_acc_sse_avx.c
@@ -1,5 +1,6 @@
 /*
- * Intel SSE + AVX Viterbi decoder
+ * Accelerated Viterbi decoder implementation
+ * for architectures with both SSE3 and AVX2 support
  *
  * Copyright (C) 2013, 2014 Thomas Tsou <tom@tsou.cc>
  *
diff --git a/src/conv_acc_sse_impl.h b/src/conv_acc_sse_impl.h
index 7d48c94..a62f910 100644
--- a/src/conv_acc_sse_impl.h
+++ b/src/conv_acc_sse_impl.h
@@ -1,5 +1,7 @@
 /*
- * Intel SSE Viterbi decoder
+ * Accelerated Viterbi decoder implementation
+ * Actual definitions which are being included
+ * from both conv_acc_sse.c and conv_acc_sse_avx.c
  *
  * Copyright (C) 2013, 2014 Thomas Tsou <tom@tsou.cc>
  *